XC9519_技术文档

XC9519Series

ETR0710-008

Dual Output Step-Up/Inverting DC/DC Converter

■GENERAL DESCRIPTION

The XC9519 series is a 2 channel (step-up and inverting) DC/DC converter IC. One DC/DC converter is a step-up DC/DC and the other is an

inverting DC/DC converter. The step-up converter compares a built-in reference voltage 1.0V to the FBP voltage (accuracy ±1.5%) and a

positive output voltage can be set freely with the external components up to 18V. The inverting DC/DC converter compares a difference

between a reference voltage and the FBN voltage (accuracy ±1.5%) to the GND, then a negative output voltage can be set until -15V with the

external components.

With a 1.2MHz frequency, the size of the external components can be reduced. As for operation mode, the device can be selected to use PWM

control or automatic PWM/PFM switching control by the MODE pin. In the automatic PWM/PFM switching control mode, control switches from

PWM to PFM during light loads. The series is highly efficient from light loads through to large output currents. In the PWM control mode,

noise is easily reduced since the frequency is fixed. The control mode can be selected for each application. The soft start and current control

functions are internally optimized. During stand-by, all circuits in the IC are shutdown to reduce current consumption to as low as 1.0μA or

less. The device includes a gate control pin for the P-channel MOSFET which is used for a load disconnection at the stand-by mode. The

GAINP and GAINN pins are used for loop compensation in order to optimize load transient response. With the built-in UVLO (Under Voltage

Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes 2.2V or lower.

■FEATURES

■APPLICATIONS

●AMOLED

Input Voltage

: 2.7V ~ 5.5V

Output Current

: 500mA @V_IN=3.7V, V_OUTP=5.0V, V_OUTN=-5.0V

Positive Output Voltage

Negative Output Voltage

Oscillation Frequency

Soft-Start Circuit Built-In

:

4.0V ^(*1)~ 18.0V (accuracy ±1.5% @25^oC)

-15.0V ^(*2)~ -4.0V (accuracy ±1.5% @25^oC)

- Smartphones

- Tablet PCs

- Automotive navigation systems

●CCD image sensors

- Surveillance cameras

●e-paper

: 1.2MHz

: Step-up DC/DC converter 2.5ms (TYP.)

:

Inverting DC/DC converter 2.2ms (TYP.)

Protection Circuits

: Over Current Limit (Integral Latching)

Short Protection Latching

UVLO

-e-Books

Thermal Shutdown

Over Voltage Protection

: Control Pin

Function Addition

Load disconnect Pin

Phase Compensation Pin

Ceramic Capacitor Compatible

: -40℃ ~ +85℃

Operating Ambient Temperature

Package

: QFN-24

Environmentally Friendly

: EU RoHS Compliant, Pb Free

（*1）V_OUTPSET≧V_IN+ 0.2V (V_OUTPSET:Positive output voltage range)

（*2）V_IN- V_OUTNSET+ V_FN≦20V

(V_FN: Forward voltage of SBD_N, V_OUTNSET: Nagative output voltage range)

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

V_OUTP=5.0V, V_OUTN=-5.0V, I_OUTP=I_OUTN

C_LP, C_LN=4×4.7μF, L_P, L_N=3.3μH (VLF5014S-3R3M2R0), SBD_P, SBD_N: CMS03

P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF, R_ZN=130kΩ, C_ZN=0.47nF

L_P

SBD_P

V_OUTP

100

C_FBP

V_ENP="H",V_ENN="H"

R_FBP1

SWP

LXP

VOUTP

FBP

P-ch MOS

R_SP

C_LP

BSW

80

PVIN

AVIN

ENP

ENN

VREF

V_IN= 4.4V

60

R_FBN2

C_{L_VR}

R_FBP2

3.6V

FBN

XC9519

2.7V

40

R_FBN1

V_IN

C_{IN_SW}C_{IN_P}C_{IN_A}

MODE

VOUTN

V_OUTN

AGND

PGND

SBD_N

20

PWM/PFM (V_MODE="H")

LXN

PWM (V_MODE="L")

GAINP

GAINN

C_LN

0

R_ZP

C_ZP

R_ZN

C_ZN

L_N

0.1

1

10

100

1000

Output Current:I_{OUT P}, I_{OUT N}(mA)

1/38

XC9519 Series

■BLOCK DIAGRAM

* Diodes inside the circuit are an ESD protection diode and a parasitic diode.

■PRODUCT CLASSIFICATION

●Ordering Information

XC9519①②③④⑤⑥-⑦

DESIGNATOR

ITEM

SYMBOL

A

DESCRIPTION

UVLO Detect Voltage 2.2V

①

UVLO Detect Voltage

UVLO Hysteresis width 0.2V

1.2 MHz

②③

④

Oscillation Frequency

Maximum Current Limit

Package (Order Unit)

12

A

2.0A

⑤⑥-⑦

ZR-G

QFN-24 (1,000/Reel) ^(*2)

(*1)

^(*1)The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.

^(*2)The XC9519 reels are shipped in a moisture-proof packing.

2/38

XC9519

Series

■PIN CONFIGURATION

*1

*1: The back metal pad, AGND pin and two PGND pins (No. 21 and 22) should be connected outside.

■PIN ASSIGNMENT

PIN NUMBER

PIN NAME

FUNCTION

QFN-24

1, 2

3

PVIN

NC

Power Supply Input 1

No Connection

4, 5

6

LXN

Switching of Inverting DC/DC Converter

Detect Monitoring of Inverting DC/DC Output Voltage

Selection Pin for Control Mode

VOUTN

MODE

VREF

AVIN

FBN

7

8

Reference Output Voltage

9

Power Supply Input 2

10

11

Feedback Pin for Inverting DC/DC Converter

Loop Compensation Pin for Inverting DC/DC Converter

Analog Ground

GAINN

AGND

GAINP

FBP

12

13

14

15

16

17

18, 19

20

21, 22

23

24

Loop Compensation Pin for Step-Up DC/DC Converter

Feedback Pin for Step-Up DC/DC Converter

Chip Enable Pin for Step-Up DC/DC Converter

P-channel MOS FET Gate Control Pin

Output Voltage Sense for Step-Up DC/DC Converter

Switching Output of Step-Up DC/DC Converter

No Connection

ENP

BSW

VOUTP

LXP

NC

PGND

ENN

Power Ground

Chip Enable Pin for Inverting DC/DC Converter

SWP

Detect Monitoring Voltage Pin for P-channel MOS FET Drain

3/38

XC9519 Series

■FUNCTION

1. ENP Pin Function

ENP PIN

STATUS

H

L

Step-up DC/DC Converter Active

Step-up DC/DC Converter Stand-by

* Please do not leave the ENP pin open.

V_IN

ENP

0V

V_IN

BSW

0V

2.5ms

V_OUTP

V_IN

0V

2. ENN Pin Function

ENN PIN

STATUS

H

L

Inverting DC/DC Converter Active

Inverting DC/DC Converter Stand-by

* Please do not leave the ENP pin open.

V_IN

ENN

0V

2.2ms

0V

V_OUTN

3. MODE Pin Function

MODE PIN

STATUS

Auto PWM/PFM

PWM Control

H

L

* Please do not leave the MODE pin open.

4/38

XC9519

Series

■ABSOLUTE MAXIMUM RATINGS

Ta=25℃

PARAMETER

PVIN Pin Voltage

AVIN Pin Voltage

ENP Pin Voltage

SYMBOL

RATINGS

-0.3 ~ +6.0

UNITS

V

V_PVIN

V_AVIN

V_ENP

V_ENN

V_MODE

V_LXP

V_LXN

V_FBP

V_FBN

V_OUTP

V_OUTN

V_BSW

V_SWP

V_REF

V_GAINP

V_GAINN

I_LXP

-0.3 ~ +6.0

V

-0.3 ~ +6.0

V

ENN Pin Voltage

-0.3 ~ +6.0

V

MODE Pin Voltage

LXP Pin Voltage

-0.3 ~ +6.0

V

-0.3 ~ +22.0

V_PVIN-22.0 ~ V_PVIN+0.3

-0.3 ~ +6.0

V

LXN Pin Voltage

V

FBP Pin Voltage

V

FBN Pin Voltage

-0.3 ~ +6.0

V

VOUTP Pin Voltage

VOUTN Pin Voltage

BSW Pin Voltage

SWP Pin Voltage

VREF Pin Voltage

GAINP Pin Voltage

GAINN Pin Voltage

LXP Pin Current

-0.3 ~ +22.0

V_AVIN-22.0 ~ V_AVIN+0.3

-0.3 ~ +6.0

V

-0.3 ~ +6.0

V

-0.3 ~ +6.0

V

-0.3 ~ +6.0

V

-0.3 ~ +6.0

V

4000

mA

mW

^oC

LXN Pin Current

I_LXN

4000

Power Dissipation

Operating Ambient Temperature

Storage Temperature

Pd

1500 (PCB mounted) *

-40 ~ +85

Topr

Tstg

-55 ~ +125

* All voltages are described based on the AGND and PGND pin.

* The value is an example of data which is taken with the PCB mounted. Please refer to our web site for details.

5/38

XC9519 Series

■ELECTRICAL CHARACTERISTICS

●XC9519 Series, Common Characteristics

f_OSC=1.2MHz

Ta=25℃

PARAMETER

Input Voltage

SYMBOL

V_IN

CONDITIONS ^(*1)

MIN.

2.7

TYP.

-

MAX.

5.5

UNITS CIRCUIT

V

-

V_ENP=1.5V , V_ENN= V_FBP= 0V, V_FBN= 0.1V

The voltage which L_XPstops oscillation while

_INis decreasing from 2.4V.

V_UVLO

2.0

2.2

2.4

2.6

⑨

UVLO Detect Voltage

UVLO Release Voltage

V

V_ENP=1.5V , V_ENN= V_FBP= 0V, V_FBN= 0.1V

The voltage which L_XPstarts oscillation while

V_UVLOR

V

⑨

V

_INis increasing from V_UVLO

.

V_UVLOH

I_DD1

V_UVLOH= V_UVLOR- V_UVLO

-

0.2

-

V

-

UVLO Hysteresis Range

Supply Current 1

V

_IN=V_ENP= V_ENN= V_MODE= 5.5V

_FBP=5.5V, V_FBN= -0.1V, V_OUTP= V_SWP= 5.5V

50

170

450

μA

①

V

_IN= V_ENN= V_MODE= 5.5V, V_ENP= 0V

_FBN= -0.1V

I_DD2

30

90

250

μA

①

Supply Current 2

V

_IN=V_ENP= V_MODE= 5.5V, V_ENN=0V

_FBP= 5.5V, V_OUTP= V_SWP= 5.5V

I_DD3

I_STB

30

-

110

0

250

1.0

μA

①

Supply Current 3

Stand-by Current

V_IN=5.5V, V_ENP=V_ENN= V_MODE= 0V

V_IN= 5.5V, V_ENN= V_MODE= 0V, V_FBP= 0V

V_ENPH

The voltage which L_XPstarts oscillation while

1.4

-

5.5

0.3

V

⑦

ENP ”H” Voltage

ENP ”L” Voltage

V

_ENPis increasing from 0.3V.

V_IN= 5.5V, V_ENN= V_MODE= 0V, V_FBP= 0V

The voltage which L_XPstops oscillation while

V_ENPIs decreasing from 1.4V.

V_ENPL

AGND

I_ENPH

I_ENPL

V_IN= V_ENP= 5.5V

V_IN= V_ENP= 0V

-0.1

-

0.1

μA

⑦

ENP ”H” Current

ENP ”L” Current

V_IN= 5.5V, V_ENP= V_MODE= 0V, V_FBN= 5.5V

The voltage which L_XNstarts oscillation while

V_ENNH

1.4

-

5.5

0.3

V

⑦

ENN ”H” Voltage

ENN ”L” Voltage

V

_ENNis increasing from 0.3V.

V_IN= 5.5V, V_ENP= V_MODE= 0V, V_FBN= 5.5V

The voltage which L_XNstops oscillation while

V_ENNL

AGND

V

_ENNis decreasing from 1.4V.

I_ENNH

I_ENNL

V_IN= V_ENN= 5.5V

V_IN= V_ENN= 0V

-0.1

-

0.1

μA

⑦

ENN ”H” Current

ENN ”L” Current

V_IN= V_ENP= 5.5V, V_ENN= 0V,

V_MODEH

The voltage which supply current decreases

while V_MODEis increasing from 0.3V.

V_IN= V_ENP= 5.5V, V_ENN= 0V,

1.4

-

5.5

V

⑦

MODE ”H” Voltage

V_MODEL

I_MODEH

The voltage which supply current increases while AGND

_MODEis decreasing from 1.4V.

-

0.3

0.1

V

⑦

MODE ”L” Voltage

MODE ”H” Current

V

V_IN= V_MODE= 5.5V

-0.1

μA

I_MODEL

I_FBPH

I_FBPL

I_FBNH

I_FBNL

I_SWPH

I_SWPL

V_IN= V_MODE= 0V

-0.1

-

0.1

μA

⑦

MODE ”L” Current

FBP ”H” Current

FBP ”L” Current

FBN ”H” Current

FBN ”L” Current

SWP ”H” Current

SWP ”L” Current

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_FBP=5.5V

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_FBP=0V

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_FBN=5.5V

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_FBN=0V

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_SWP=5.5V

V_IN=5.5V, V_ENP=V_ENN=V_MODE=0V, V_SWP=0V

V_IN=V_ENP=V_ENN= 5.5V, V_MODE=0V

V

_FBP=0.9V, V_FBN= 0.1V

t_LAT

1.0

2.0

3.0

ms

⑤

Integral Latch Time

Time to stop operation from the start of maximum

current limit status.

Thermal Shutdown

Temperature

T_TSD

T_TSDR

T_HYS

-

150

130

20

-

^oC

-

Thermal Shutdown

Release Temperature

Thermal Shutdown

Hysteresis Range

T_HYS=T_TSDR- T_TSD

(*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

6/38

XC9519

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9519 Series, Step-up DC/DC Converter

Ta=25℃

PARAMETER

SYMBOL

V_OUTPSET

CONDITIONS ^(*1)

MIN.

TYP.

-

MAX.

18.0

UNITS CIRCUIT

4.0 ^(*2)

V

-

Output Voltage Range

V

_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V

_OUTP= V_SWP= 3.6V

V_FBP

0.985

1.000 1.015

V

③

FBP Voltage

The voltage which L_XPstarts oscillation while

V_FBPis decreasing.

V

_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V

_OUTP= V_SWP= 3.6V, V_FBP=0V

f_OSCP

I_PFMP

1020

180

84

1200

350

90

1380

550

97

kHz

mA

%

③

⑧

③

Oscillation Frequency

PFM Switching Current

Maximum Duty Cycle

V_IN=V_ENP= V_MODE= 3.6V, V_ENN=0V

V

_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V

_OUTP= V_SWP= 3.6V, V_FBP=0V

D_MAXP

LXP SW “H” ON

Resistance

R_LXPH

V_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V, I_LXP= 100mA

V_IN=5.5V, V_ENP=0V, V_LXP=5.5V

-

0.12

0.28

Ω

④

LXP SW “H” Leak

Current

I_LEAKH

I_LIMP

-

0.01

-

1.0

μA

⑥

⑤

V

_IN=V_ENP= 5.5V, V_ENN= V_MODE=0V

_FBP= 0.9V, V_OUTP= V_SWP= 5.5V

Maximum Current Limit ^(*3)

2000

4000

mA

FBP Voltage

Temperature

Characteristics

ꢀ

V_FBP

/

-40 ^oC≦Topr≦85 ^oC

-

±100

2.5

-

ppm / ^oC

-

(V_FBP

・

ꢀ

Topr)

V_IN= 3.6V, V_ENN= V_MODE= 0V

V

_OUTP= V_SWP= 3.6V, V_FBP= 0.95V

t_SSP

0.8

5.2

ms

③

Soft-Start Time

Time to start L_XPoscillation from the rise of V_ENP

.

(0V→3.6V)

V

_IN=V_ENP= 5.5V, V_ENN= V_MODE=0V

_OUTP= V_SWP= 5.5V

Short Protection

V_SHORTP

0.3

0.5

0.7

V

⑤

③

The voltage which the integral latch time

Threshold Voltage

becomes 200μs or less while V_FBPis decreasing.

V_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V

V

_OUTP= V_SWP= 3.6V, V_GAINP= 3.6V

Over Voltage

Protection Limit

V_FBP

+0.03

V_FBP

+0.07

V_FBP

+0.10

V_OVPP

The voltage which L_XPstops oscillation while

V_FBPis increasing.

V

_IN= V_ENP= 3.6V, V_ENN= V_MODE= 0V

_OUTP= V_SWP= 3.6V, V_BSW=3.6V

_IN= 6.0V, V_ENP=V_ENN= V_MODE= 0V

_OUTP= 4.0V

I_BSW

BSW Pin Current

0.2

50

1.2

3.0

mA

⑦

②

R_DCHGP

C_LDischarge Resistance

200

500

Ω

NOTE:

(*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

(*2) Input voltage or positive output voltage range should be V_OUTPSET≧V_IN+ 0.2V.

(*3) Maximum current limit denotes the level of detection at peak of coil current.

7/38

XC9519 Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9519 Series, Inverting DC/DC Converter

Ta=25℃

PARAMETER

SYMBOL

V_OUTNSET

CONDITIONS ^(*1)

MIN.

TYP.

-

MAX.

-4.0

UNITS CIRCUIT

-15.0^(*2)

V

-

Output Voltage Range

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V

The voltage which L_XNstarts oscillation while

V_FBNis increasing.

V_FBN

-26

0

26

mV

③

FBN Voltage

V_REF

V_OUTNA

f_OSCN

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, V_FBN= 0.1V

V_OUTNA=V_REF-V_FBN

0.970

0.985

1020

220

1.000 1.030

1.000 1.015

V

①

-

Reference Voltage

Output Voltage Accuracy

Oscillation Frequency

PFM Switching Current

Maximum Duty Cycle

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, V_FBN= 0.1V

V_IN= V_ENN= V_MODE= 3.6V, V_ENP= 0V

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, V_FBN= 0.1V

1200

350

90

1380

550

97

kHz

mA

%

③

⑧

③

I_PFMN

D_MAXN

84

LXN SW “L” ON

Resistance

R_LXNL

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, I_LXN= 100mA

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, V_FBN= 0.1V

-

0.22

0.48

Ω

④

LXN SW “L” Leak

Current

I_LEAKL

I_LIMN

-

0.01

-

1.0

μA

⑥

⑤

V

_IN= V_ENN= 5.5V, V_ENP= V_MODE= 0V

_FBN= 0.1V

Maximum Current Limit ^(*3)

2000

4000

mA

Reference Voltage

Temperature

ꢀ

V_REF

/

-40 ^oC≦Topr≦85 ^oC

-

±100

-

ppm / ^oC

-

(V_REF

・

ꢀ

Topr)

Characteristics

V_IN= 3.6V, V_ENP= V_MODE= 0V, V_FBN= 0.05V

Time to start L_XNoscillation from the rise of V_ENP

(0V→3.6V)

V_IN= V_ENN= 5.5V, V_ENP= V_MODE= 0V

The voltage which the integral latch time

becomes 200μs or less while V_FBNis increasing.

V_IN= V_ENN= 3.6V, V_ENP= V_MODE= 0V, V_GAINN= 3.6V

The voltage which L_XNstops oscillation while

t_SSN

.

0.8

0.3

2.2

0.5

4.0

0.7

ms

V

③

⑤

Soft-Start Time

Short Protection

V_SHORTN

Threshold Voltage

Over Voltage

Protection Limit

V_FBN

-0.10

V_FBN

-0.07

V_FBN

-0.03

V_OVPN

V

③

②

V

_FBNis decreasing.

V

_IN= 6.0V, V_ENP=V_ENN= V_MODE= 0V

_OUTN= -4.0V

R_DCHGN

C_LDischarge Resistance

NOTE:

50

200

500

Ω

(*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

(*2) Input voltage or positive output voltage range should be V_IN- V_OUTNSET+ V_FN≦20V (V_FN: Forward voltage of external schottky barrier diode) .

(*3) Maximum current limit denotes the level of detection at peak of coil current.

8/38

XC9519

Series

■OPERATIONAL EXPLANATION

The XC9519 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase compensation circuit,

driver transistor, current limiter circuit, short protection circuit, UVLO circuit, thermal shutdown circuit, over voltage protection, load disconnect

control and others. (See the block diagram below.)

By using the error amplifier, the FBP (FBN) pin voltage is compared with the internal reference voltage. The error amplifier output is sent to the

PWM comparator in order to determine the duty cycle of PWM switching. The signal from the error amplifier is compared with the ramp wave from

the ramp wave circuit, and the resulting output is delivered to the buffer driver circuit to provide on-time of the duty cycle at the LXP (LXN) pin.

This process is continuously performed to ensure stable output voltage.

The current feedback circuit monitors the driver transistor current for each switching operation, and modulates the error amplifier output signal

to provide multiple feedback signals. This enables a stable feedback loop even when using a low ESR capacitor such as ceramic, which results in

ensuring stable output voltage.

* Diodes inside the circuit are an ESD protection diode and a parasitic diode.

9/38

XC9519 Series

■OPERATIONAL EXPLANATION (Continued)

The reference voltage source provides the reference voltage to ensure stable output voltage of the DC/DC converter.

<Step-up DC/DC Converter Error Amplifier>

The step-up DC/DC converter error amplifier is an amplifier for output voltage monitoring. The FBP pin voltage is compared to the reference

voltage. When a voltage lower than the reference voltage is feedback to the FBP pin voltage, the output voltage of the error amplifier goes high.

External compensation of the error amplifier frequency characteristic is also possible.

The inverting DC/DC converter error amplifier is an amplifier for output voltage monitoring. The FBN pin voltage is compared to GND. When a

voltage higher than GND is feedback to the FBN pin voltage, the output voltage of the error amplifier goes high. External compensation of the

error amplifier frequency characteristic is also possible.

The ramp wave circuit determines switching frequency. The frequency is fixed 1.2MHz internally. Clock pulses generated in this circuit are

used to produce ramp waveforms needed for PWM operation, and to synchronize all the internal circuits.

When the AVIN pin voltage becomes 2.2V or lower, the driver transistor is forced OFF to prevent false pulse output caused by unstable

operation of the internal circuitry. When the AVIN pin voltage becomes 2.4V or higher, switching operation takes place. By releasing the UVLO

function, the IC performs the soft start function to initiate output startup operation. The soft start function operates even when the AVIN pin

voltage falls momentarily below the UVLO detect voltage. The UVLO circuit does not cause a complete shutdown of the IC, but causes pulse

output to be suspended; therefore, the internal circuitry remains in operation.

For protection against heat damage of the ICs, thermal shutdown function monitors chip temperature. The thermal shutdown circuit starts

operating and the driver transistor will be turned off when the chip’s temperature reaches 150^oC. When the temperature drops to 130 ^oC or less

after shutting of the current flow, the IC performs the soft start function to initiate output startup operation.

In PFM control operation, until coil current reaches to a specified level (I_PFMP, I_PFMN), the IC keeps the driver transistor on. In this case, time

(t_ON) that the driver transistor is kept on can be given by the following formula.

t_ON= L ×I_PFMP(I_PFMN) / V_IN

< PFM Duty Limit >

In PFM control operation, the maximum duty cycle (DTY_{LIMIT_PFM}) is set to 50% (TYP.). Therefore, under the condition that the duty increases

(e.g. the condition that the step-up ratio is large), it’s possible for the driver transistor to be turned off even when the coil current doesn’t reach to I_PFMP

(I_PFMN).

10/38

XC9519

Series

■OPERATIONAL EXPLANATION (Continued)

< C_LAuto-Discharge Function >

This function enables high-speed discharge of the charge on the output capacitor (C_L) when an L level signal is input to the ENP (ENN) pin by

means of the internal switch between the VOUTP pin and AGND pin (between the VOUTN pin and AVIN pin).

This function makes it possible to prevent malfunctioning of applications caused by charge remaining on C_L.

The discharge time is determined by the C_Ldischarge resistance (R_DCHC) and C_L. Ifτ(τ= C_L× R_DCHG) is the time constant of C_Land R_DCHG, the

equation for the output voltage discharge time can be obtained from the following CR discharge equation.

ｔ=τln（V_OUTSET/ V）

V: Output voltage during discharge

V

_OUTSET: Output voltage

t: Discharge time

τ: C_L×R_DCHG

[Example]

When the set voltage (V_OUTPSET)=5.0V, C_LP=18.8μF, and the C_Ldischarge resistance (R_DCHGP)=200Ω (TYP.) of the DC/DC Converter, the

discharge time t from the start of C_Lhigh-speed discharge until the output voltage falls to 1.0V can be calculated as follows:

ｔ=τln ( V_OUTPSET/ V )= C_LP×R_DCHGPln ( V_OUTPSET/ V ) = 18.8μF×200Ω×ln ( 5.0V / 1.0V ) = 6.05×10^-3s = 6.05 ms ^(*1)

(*1) Calculated with I_OUT= 0mA

The step-up DC/DC Converter and the Inverting DC/DC Converter are switching synchronously based on one internal clock. The phase of

the step-up driver on timing for the DC/DC Converter is shifted to completely opposite position (180 degrees different) upon the phase of driver

on timing for the Inverting DC/DC Converter.

1.2MHz

Internal OSC

Inductor Peak Current

Boost_I_LX

0A

Inductor Peak Current

Inverting_I_LX

0A

Overvoltage protection monitors the output voltage V_OUTP(V_OUTN) using the FBP (FBN) pin voltage, and prevents the output voltage V_OUTP

(V_OUTN) from rising too far above the set voltage. In particular, fluctuations in the load cause the output voltage to rise, and when the FBP (FBN)

pin voltage reaches the overvoltage protection detection voltage, the driver transistor of the step-up DC/DC converter (inverting DC/DC

converter) is turned off to hold down the rise of output voltage. When the output voltage falls after overvoltage protection detection, normal

DC/DC converter operation resumes.

The output voltage V_{OUT_OVP}that is detected by overvoltage protection is obtained from the following equation:

V

_{OUT_OVP P}(V_{OUT_OVPN})=V_OUTPSET(V_OUTNSET) × V_{OVP P}(V_OVPN

)

V

_OUTPSET(V_OUTNSET): Output voltage, V_OVPP(V_OVPN): Detect Overvoltage Protection Voltage

[Example]

In a step-up DC/DC converter with the indicated conditions, the output voltage V_{OUT_OVPP}that is detected by overvoltage protection can be

calculated as shown below.

Condition: Output Voltage (V_OUTPSET)=5.0V, V_OVPP=V_FBP+0.07V(TYP.) , V_FBP=1.0V(TYP.)

V

_{OUT_OVPP}= V_OUTPSET× V_OVP= 5.0V × (1.0 + 0.07(TYP.)) =5.0V × 1.07 = 5.35V

The Load disconnect control circuit makes it possible to break continuity between V_INand V_OUTPby turning off the external P-ch MOS FET when the

step-up DC/DC converter is in the standby state.

11/38

XC9519 Series

■OPERATIONAL EXPLANATION (Continued)

The current limiter circuit of the XC9519 series monitors the current flowing through the driver transistor, and features a combination of the

current limit mode and the operation suspension mode.

① When the driver current is greater than a specific level, the current limit function operates to turn off the pulses from the LXP (LXN) pin at any

given timing.

② When the driver transistor is turned off, the limiter circuit is then released from the current limit detection state.

③ At the next pulse, the driver transistor is turned on. However, the transistor is immediately turned off in the case of an over current state.

④ When the over current state is eliminated, the IC resumes its normal operation.

The IC waits for the over current state to end by repeating the steps ① through ③. If an over current state continues for the integral latch time

and the above three steps are repeatedly performed, the IC performs the function of integral latching the OFF state of the driver transistor, and

goes into operation suspension mode.

Once the IC is in suspension mode, operations can be resumed by either turning the IC off via the ENP (ENN) pin, or by restoring power. Care

must be taken when laying out the PC Board, in order to prevent misoperation of the current limit mode. Depending on the state of the PC Board,

latch time may become longer and latch operation may not work. In order to avoid the effect of noise, the board should be laid out so that input

capacitors are placed as close to the IC as possible.

(a) Step-up DC/DC Converter

Limit < 2.0ms(TYP.)

Limit > 2.0ms(TYP.)

Current Limit Level

I_OUTP

V_OUTP

V_LXP

0mA

AGND,PGND

ENP

Restart

AGND,PGND

(b) Inverting DC/DC Converter

Limit < 2.0ms(TYP.)

Limit > 2.0ms(TYP.)

Current Limit Level

I_OUTN

0mA

AGND,PGND

V_OUTN

V_LXN

ENN

Restart

AGND,PGND

<Short-Circuit Protection>

The short-circuit protection circuit monitors the output voltage from the V_OUTP(V_OUTN). In case where output is accidentally shorted to the GND

and when the FBP voltage decreases less than short protection threshold voltage or FBN pin voltage becomes larger than short protection

threshold voltage and a current more than the I_LIMflows to the driver transistor, the short-circuit protection quickly operates to turn off and to latch

the driver transistor.

Once the IC is in suspension mode, operations can be resumed by either turning the IC off via the ENP (ENN) pin, or by restoring power.

12/38

XC9519

Series

■EXTERNAL COMPONENTS

<Step-up DC/DC Converter Output Voltage Setting>

The output voltage V_OUTPof a step-up DC/DC converter can be set by connecting external dividing resistors R_FBP1and R_FBP2

The output voltage V_OUTPis determined by the values of R_FBP1and R_FBP2as given in the equation below.

Adjust R_FBP1and R_FBP2so that (R_FBP1+ R_FBP2) < 500kΩ.

.

V_OUTP= V_FBP× (R_FBP1+ R_FBP2) / R_FBP2

Set the output voltage so that V_OUTP≧V_IN+ 0.2V is satisfied.

Adjust the value of the phase compensation speed-up capacitor C_FBPso that f_zfp=1 / (2 × π × R_FBP1) is about 40kHz, and insert several kΩ in

series as R_SP. If a high output voltage is set, inserting a phase compensation speed-up capacitor may cause unstable operation.

Examples of setting C_FBPand R_SPare shown in the next section, “Step-up DC/DC Converter Error Amplifier External Compensation”.

【Typical Examples】

V_OUTP

R_FBP1

R_FBP2

4.0V

5.0V

300kΩ

240kΩ

330kΩ

336kΩ

408kΩ

100kΩ

75kΩ

30kΩ

24kΩ

9.0V

12.0V

15.0V

18.0V

The output voltage V_OUTNof an inverting DC/DC converter can be set by connecting external dividing resistors R_FBN1and R_FBN2

The output voltage V_OUTNis determined by the values of R_FBN1and R_FBN2as given in the equation below.

Adjust R_FBN1and R_FBN2so that (R_FBN1+ R_FBN2) < 500kΩ.

.

V_OUTN= - (V_REF- V_FBN) × R_FBN1/ R_FBN2

Set the output voltage so that

V

_IN- V_OUTN+ V_FN≦20.0V

(V_FN: Forward voltage of external diode SBD_N) is satisfied.

【Typical Examples】

V_OUTN

R_FBN1

R_FBN2

-4.0V

-5.0V

300kΩ

270kΩ

360kΩ

75kΩ

60kΩ

30kΩ

24kΩ

-9.0V

-12.0V

-15.0V

13/38

XC9519 Series

■COMPONENT SELECTION METHOD (Continued)

<Step-up DC/DC Converter Error Amplifier External Compensation>

External compensation of the frequency characteristic of a step-up DC/DC converter error amplifier is possible with R_ZPand C_ZP. The values of

R_ZPand C_ZPcan be adjusted to obtain the optimum load-transient response (step response). For adjustment using the input voltage and output

voltage, use the setting values below.

V_IN

Output Voltage Range

L_P

C_LP

R_ZP

C_ZP

C_FBP

R_SP

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

5.1kΩ

8.2kΩ

5.1kΩ

7.5kΩ

10kΩ

18kΩ

16kΩ

27kΩ

16kΩ

24kΩ

4.7nF

2.2nF

4.7nF

47pF^(*1)

4.7kΩ

4.6V ≦ V_OUTP≦ 5.0V

5.0V < V_OUTP≦ 9.0V

9.0V < V_OUTP≦ 12.0V

12.0V < V_OUTP≦ 15.0V

15.0V < V_OUTP≦ 18.0V

3.3μH

4.7kΩ

-

3.3μH

Li-ion

(2.7～4.4V)

V_IN

Output Voltage Range

L_P

C_LP

R_ZP

C_ZP

C_FBP

R_SP

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

8.2kΩ

13kΩ

16kΩ

22kΩ

18kΩ

30kΩ

24kΩ

36kΩ

22kΩ

36kΩ

4.7nF

2.2nF

47pF^(*2)

4.7kΩ

4.0V ≦V_OUTP≦ 5.0V

3.3μH

4.7kΩ

-

5.0V < V_OUTP≦ 9.0V

9.0V < V_OUTP≦12.0V

12.0V < V_OUTP≦ 15.0V

15.0V < V_OUTP≦ 18.0V

3.3μH

3.3V±10%

V_IN

V_OUTP

L_P

C_LP

R_ZP

C_ZP

C_FBP

R_SP

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

4.7kΩ

8.2kΩ

5.1kΩ

10kΩ

8.2kΩ

16kΩ

13kΩ

24kΩ

12kΩ

18kΩ

4.7nF

2.2nF

4.7nF

68pF^(*3)

4.7kΩ

5.7V ≦ V_OUTP≦ 7.0V

3.3μH

4.7kΩ

-

7.0V < V_OUTP≦ 9.0V

9.0V < V_OUTP≦ 12.0V

12.0V < V_OUTP≦ 15.0V

15.0V < V_OUTP≦ 18.0V

3.3μH

5V±10%

(*1) Setting value with RFBP1 = 300kΩ

(*2) Setting value with RFBP1 = 360kΩ

(*3) Setting value with RFBP1 = 240kΩ

14/38

XC9519

Series

■COMPONENT SELECTION METHOD (Continued)

External compensation of the frequency characteristic of an inverting DC/DC converter error amplifier is possible with R_ZNand C_ZN. The values

of R_ZNand C_ZNcan be adjusted to obtain the optimum load-transient response (step response). For adjustment using the input voltage and output

voltage, use the setting values below.

V_IN

Output Voltage Range

L_N

C_LN

R_ZN

C_ZN

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

51kΩ

110kΩ

68kΩ

1.0nF

0.47nF

1.0nF

-4.0V≧V_OUTN≧-5.0V

3.3μH

-5.0V > V_OUTN≧-9.0V

-9.0V > V_OUTN≧-12.0V

-12.0V > V_OUTN≧ -15.0V

3.3μH

130kΩ

120kΩ

200kΩ

110kΩ

200kΩ

Li-ion

(2.7～4.4V)

0.47nF

V_IN

Output Voltage Range

L_N

C_LN

R_ZN

C_ZN

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

51kΩ

110kΩ

68kΩ

1.0nF

0.47nF

1.0nF

-4.0V≧V_OUTN≧-5.0V

3.3μH

-5.0V > V_OUTN≧-9.0V

-9.0V > V_OUTN≧-12.0V

-12.0V > V_OUTN≧-15.0V

3.3μH

130kΩ

120kΩ

200kΩ

110kΩ

200kΩ

3.3V±10%

0.47nF

V_IN

Output Voltage Range

L_N

C_LN

R_ZN

C_ZN

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

2×4.7μF

4×4.7μF

51kΩ

110kΩ

68kΩ

1.0nF

0.47nF

1.0nF

-4.0V≧V_OUTN≧-5.0V

3.3μH

-5.0V > V_OUTN≧-9.0V

-9.0V > V_OUTN≧-12.0V

-12.0V > V_OUTN≧-15.0V

3.3μH

130kΩ

120kΩ

200kΩ

110kΩ

200kΩ

5V±10%

0.47nF

15/38

XC9519 Series

■TYPICAL APPLICATION CIRCUIT

(V_IN=3.6V, V_OUTP=5.0V, V_OUTN=-5.0V)

<Typical Examples> V_IN=3.6V, V_OUTP=5.0V, V_OUTN=-5.0V

・ Capacitor

C_{IN_P}

C_{IN_SW}

C_{IN_A}

C_LP

: 10μF/ 10V (C2012JB1A106M, TDK-EPC)

: 4.7μF/ 10V (C2012JB1A475M, TDK-EPC)

: 0.1μF/ 10V (C1005JB1A104K, TDK-EPC)

: 4×4.7μF/ 10V (C2012JB1A475M, TDK-EPC)

: 0.22μF/ 6.3V (C1005JB0J224M, TDK-EPC)

: 4.7nF/ 25V (C1005JB1E472K, TDK-EPC)

: 0.47nF/ 50V (C1005JB1H471K, TDK-EPC)

: 47pF/ 50V (C1005CH1H470J, TDK-EPC)

C_LN

C_{L_VR}

C_ZP

C_ZN

C_FBP

For C_{IN_P}, C_{IN_SW}, C_{IN_A}, C_{L_VR}, C_LP, and C_LN, use a B characteristic (JIS Standards) or X7R/X5R (EIA Standards), and use a ceramic capacitor with

minimal reduction of capacitance when a DC bias is applied.

・ Coil, Schottky diode, P-ch MOSFET

L_P,L_N

: 3.3μH (VLF5014S-3R3M2R0, TDK-EPC)

(MSS5121-332, Coilcraft)

SBD_P,SBD_N

P-ch MOS

: XBS304S17R-G (TOREX)

CMS03 (TOSHIBA)

: EMH1303 (SANYO)

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

・Resistor

R_FBP1

R_FBP2

R_SP

: 300kΩ

: 75kΩ

: 4.7kΩ

R_FBN1

R_FBN2

: 300kΩ

: 60kΩ

R_ZP

R_ZN

: 8.2kΩ

: 110kΩ

16/38

XC9519

Series

■TYPICAL APPLICATION CIRCUIT (Continued)

(V_IN=3.6V, V_OUTP=15.0V, V_OUTN=-15.0V)

<Typical Examples> V_IN=3.6V, V_OUTP=15.0V, V_OUTN=-15.0V

・Capacitor

C_{IN_P}

C_{IN_SW}

C_{IN_A}

C_LP

: 10μF/ 10V (C2012JB1A106M, TDK-EPC)

: 4.7μF/ 10V (C2012JB1A475M, TDK-EPC)

: 0.1μF/ 10V (C1005JB1A104K, TDK-EPC)

: 4×4.7μF/ 25V (TMK212BJ475KG, TAIYO YUDEN)

: 0.22μF/ 6.3V (C1005JB0J224M, TDK-EPC)

: 2.2nF/ 50V (C1005JB1H222K, TDK-EPC)

: 0.47nF/ 50V (C1005JB1H471K, TDK-EPC)

: OPEN

C_LN

C_{L_VR}

C_ZP

C_ZN

C_FBP

For C_{IN_P}, C_{IN_SW}, C_{IN_A}, C_{L_VR}, C_LP, and C_LN, use a B characteristic (JIS Standards) or X7R/X5R (EIA Standards), and

use a ceramic capacitor with minimal reduction of capacitance when a DC bias is applied.

・ Coil, Schottky diode, P-ch MOSFET

L_P,L_N

: 3.3μH (VLF5014S-3R3M2R0, TDK-EPC)

(MSS5121-332, Coilcraft)

SBD_P,SBD_N

P-ch MOS

: XBS304S17R-G (TOREX)

CMS03 (TOSHIBA)

: EMH1303 (SANYO)

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

・Resistor

R_FBP1

R_FBP2

R_SP

: 336kΩ

: 24kΩ

: OPEN

R_FBN1

R_FBN2

: 360kΩ

: 24kΩ

R_ZP

R_ZN

: 27kΩ

: 200kΩ

17/38

XC9519 Series

■TEST CIRCUITS

1) Circuit ①

2) Circuit ②

3) Circuit ③

Wave Form Measure Point

47Ω

ENP

LXP

VOUTP

FBP

ENN

MODE

SWP

0.22μF

VREF

FBN

BSW

Wave Form Measure Point

47Ω

PVIN

AVIN

AGND

PGND

VOUTN

LXN

1μF

GAINN

GAINP

V_IN

100kΩ

V

4) Circuit ④

18/38

XC9519

Series

■TEST CIRCUITS (Continued)

5) Circuit ⑤

6) Circuit ⑥

7) Circuit ⑦

Wave Form Measure Point

47Ω

ENP

LXP

VOUTP

FBP

A

ENN

A

MODE

SWP

VREF

FBN

BSW

PVIN

AVIN

AGND

PGND

VOUTN

LXN

Wave Form Measure Point

47Ω

1μF

GAINN

GAINP

A

V_IN

19/38

XC9519 Series

■TEST CIRCUITS (Continued)

8) Circuit ⑧

9) Circuit ⑨

1. Capacitance between pins

The capacitances between the following pins are omitted in the circuit diagram.

PVIN pin – PGND pin: 1μF

FBP pin - AGND pin: 1μF

FBN pin - AGND pin: 1μF

VREF pin - AGND pin: 1μF

2. Testing method for on resistance

Testing is executed at 100% DUTY using test mode.

20/38

XC9519

Series

■NOTES ON USE

1. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be exceeded.

2. The characteristics of this IC are highly dependent on peripheral circuits.

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

Some peripheral component selections may cause unstable operation.

Before use, sufficiently test operation using the actual equipment.

3. When the input voltage V_INis low and the output voltage V_OUTP/V_OUTNis high, the input current may be limited by the maximum duty limit and

the set output voltage may not be output.

4. If the step-up ratio is high and excessive load current flows, the input current may be limited by the maximum duty limit and maximum current

limit protection and short-circuit protection may not activate.

5. Do not connect a component other than C_{L_VR}to the VREF pin.

If a component other than C_{L_VR}is connected, the output voltage V_OUTNof an inverting DC/DC converter may become unstable.

6. For external components, use the components specified in the standard circuit examples and component selection methods.

7. When the input voltage V_INis high and the output voltage V_OUTP/V_OUTNis low, intermittent oscillation may occur during PWM control.

8. If the step-up ratio is low in a step-up DC/DC converter, the output voltage V_OUTPmay become unstable during PFM/PWM switching control

(V_MODE= "H").

C_LP=4×4.7

F

μ

Step-up DC/DC Converter: PWM/PFM MODE

(V_IN=4.4V, V_OUTP=5.0V, I_OUTP=200mA

L =3.3 H (VLF5014S-3R3M2R0)

μ

P

SBD_P: CMS03

V_ENP="H", V_ENN="L", V_MODE="H")

P-ch MOS: EMH1303

R_ZP=7.5kΩ, C_ZP=4.7nF

V

_{OUT P}:50mV/div

time:20 s/div

μ

9. During PFM/PWM switching control (V_MODE= "H"), the output voltage may become unstable near switching between PFM mode and PWM mode.

Step-up DC/DC Converter: PWM/PFM MODE

C_LP=4×4.7

F

μ

(V_IN=3.6V, V_OUTP=5.0V, I_OUTP=120mA

_ENP="H", V_ENN="L", V_MODE="H")

L =3.3 H (VLF5014S-3R3M2R0)

μ

P

SBD_P: CMS03

V

P-ch MOS: EMH1303

R_ZP=7.5kΩ, C_ZP=4.7nF

V

_{OUT P}:20mV/div

time:10 s/div

μ

21/38

XC9519 Series

■NOTES ON USE (Continued)

10. During PWM control (V_MODE= "L"), the output voltage may become unstable at light loads.

Inverting DC Converter: PWM MODE

(V_IN=5.5V, V_OUTN=-15.0V, I_OUTN=100mA

C_LN=4×4.7

F

μ

L =3.3 H (VLF5014S-3R3M2R0)

μ

N

SBD_N: CMS03

V_ENP="L", V_ENN="H", V_MODE="L")

R

_ZN=200kΩ, C_ZN=0.47nF

V

_{OUT N}:20mV/div

time:50 s/div

μ

11. Torex places an importance on improving our products and their reliability.

We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in their systems.

22/38

XC9519

Series

■NOTES ON USE (Continued)

●Notes on Layout

1. Position external components close to the IC so that the wiring is thick and short.

2. To minimize input voltage fluctuations, place C_{IN_P}and C_{IN_A}as close as possible to the IC.

3. Make the GND wiring sufficiently strong. Fluctuations of AGND or PGND voltage due to GND current during switching may cause unstable IC operation.

4. When creating a layout, refer to the circuit diagram and recommended layout pattern below.

5. This product is incorporated into a driver, and thus the driver transistor current and on-resistance may cause heat generation.

L_P

SBD_P

V_OUTP

P-ch MOS

C_FBP

SWP

LXP

VOUTP

R_FBP1

C_LP

BSW

PVIN

AVIN

ENP

R_SP

FBP

R_FBP2

VREF

R_FBN2

FBN

V_IN

C_{IN_SW}C_{IN_P}C_{IN_A}

ENN

MODE

C_{L_VR}

R_FBN1

V_OUTN

VOUTN

LXN

AGND

PGND

SBD_N

GAINP

GAINN

C_LN

R_ZP

C_ZP

R_ZN

C_ZN

L_N

●Recommended Pattern Layout

Front

Back side see-through

23/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1) Efficiency vs. Output Current

Step-up DC/DC Converter (V_OUTP=5.0V)

Inverting DC/DC Converter (V_OUTN=-5.0V)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

100

80

60

40

20

0

100

80

60

40

20

0

V_ENP="H",V_ENN="L"

V_ENP="L",V_ENN="H"

V_IN= 4.4V

3.6V

V_IN= 4.4V

3.6V

2.7V

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

Step-up DC/DC Converter (V_OUTP=15.0V)

Inverting DC/DC Converter (V_OUTN=-15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

100

80

60

40

20

0

100

80

60

40

20

0

V_ENP="H",V_ENN="L"

V_ENP="L",V_ENN="H"

V_IN= 5.5V

3.6V

V_IN= 5.5V

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

(2) Output Voltage vs. Output Current

Step-up DC/DC Converter (V_OUTP=5.0V)

Inverting DC/DC Converter (V_OUTN=-5.0V)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

5.2

5.1

5.0

4.9

4.8

-4.8

-4.9

-5.0

-5.1

-5.2

V_ENP="L",V_ENN="H"

V_ENP="H",V_ENN="L"

V_IN4.4V

＝

V_IN4.4V,3.6V,2.7V

＝

3.6V

2.7V

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

24/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Output Voltage vs. Output Current (Continued)

Inverting DC/DC Converter (V_OUTN=-15.0V)

Step-up DC/DC Converter (V_OUTP=15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

15.4

15.2

15.0

14.8

14.6

-14.6

-14.8

-15.0

-15.2

-15.4

V_ENP="H",V_ENN="L"

V_ENP="L",V_ENN="H"

V

V,3.6V

_IN＝5.5

V_IN5.5V

＝

3.6V

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

(3) Ripple Voltage vs. Output Current

Step-up DC/DC Converter (V_OUTP=5.0V)

Inverting DC/DC Converter (V_OUTN=-5.0V)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF

100

80

60

40

20

0

100

80

60

40

20

0

V_ENP="H",V_ENN="L"

V_ENP="L",V_ENN="H"

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

4.4V

3.6V

4.4V

2.7V

3.6V

V_IN= 2.7V,3.6V,4.4V

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

Step-up DC/DC Converter (V_OUTP=15.0V)

Inverting DC/DC Converter (V_OUTN=-15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

100

80

60

40

20

0

100

80

60

40

20

0

V_ENP="H",V_ENN="L"

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

V_ENP="L",V_ENN="H"

PWM/PFM (V_MODE="H")

PWM (V_MODE="L")

V_IN= 5.5V

3.6V

5.5V

2.7V

V_IN= 2.7V,3.6V,4.4V

3.6V

2.7V

0.1

1

10

100

1000

0.1

1

10

100

1000

Output Current:I_OUTP(mA)

Output Current:I_OUTN(mA)

25/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) Oscillation Frequency vs. Ambient Temperature

1.5

1.4

1.3

1.2

1.1

1.0

0.9

1.5

1.4

1.3

1.2

1.1

1.0

0.9

3.6V

V_IN=5.5V

3.6V

V_IN=5.5V

2.7V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

)

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

℃

(5) Supply Current 1,2,3 vs. Ambient Temperature

Supply Current 1

Supply Current 2

250

200

V_IN=5.5V

200

150

100

50

V_IN=5.5V

150

2.7V

100

50

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

Supply Current 3

)

℃

Ambient Temperature: Ta (

)

℃

200

150

100

50

V_IN=5.5V

2.7V

0

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

26/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(6) FBP Voltage vs. Ambient Temperature

(7) Output Voltage Accuracy vs. Ambient Temperature

1.02

1.01

1.00

0.99

0.98

V_IN=5.5V

1.01

1.00

0.99

0.98

2.7V

2.7V,3.6V

3.6V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

Ambient Temperature: Ta (

)

℃

(8) UVLO Voltage vs. Ambient Temperature

2.7

2.6

2.5

UVLO Release Voltage

UVLO Detect Voltage

2.4

2.3

2.2

2.1

2.0

V_ENP="H",V_ENN="L",V_MODE="L"

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

(9) ENP "H" Voltage vs. Ambient Temperature

(10) ENP "L" Voltage vs. Ambient Temperature

1.2

1.4

1.3

1.1

1.0

0.9

0.8

0.7

0.6

1.2

1.1

1.0

0.9

0.8

V_IN=5.5V,V_ENN="L",V_MODE="L"

0.7

0.5

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

Ambient Temperature: Ta (

)

℃

27/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(11) ENN "H" Voltage vs. Ambient Temperature

(12) ENN "L" Voltage vs. Ambient Temperature

1.4

1.2

1.3

1.2

1.1

1.0

0.9

1.1

1.0

0.9

0.8

0.7

0.8

0.6

V_IN=5.5V,V_ENP="L",V_MODE="L"

0.7

0.5

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

(14) MODE "L" Voltage vs. Ambient Temperature

(13) MODE "H" Voltage vs. Ambient Temperature

1.4

1.3

1.2

1.1

1.0

0.9

0.8

1.2

1.1

1.0

0.9

0.8

0.7

0.6

V_IN=5.5V,V_ENP="H",V_ENN="L"

0.7

0.5

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

(16) LXN SW "L" ON Resistance vs. Ambient Temperature

0.5

(15) LXP SW “H” ON Resistance vs. Ambient Temperature

0.3

0.4

2.7V

0.2

0.3

0.2

0.1

3.6V V_IN=5.5V

3.6V

0.1

V_IN=5.5V

0.0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

Ambient Temperature: Ta (

)

℃

28/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(17) Output Voltage Rise Wave Form

Step-up DC/DC Converter (V_OUTP=15.0V)

Inverting DC/DC Converter (V_OUTN=-15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

V_IN=3.6V,V_ENN="L",V_MODE="L"

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

V_IN=3.6V,V_ENP="L",V_MODE="L"

1ch

V_OUTN

V_OUTP

1ch

2ch

V_ENN= 0 3.6V

V_ENP= 0 3.6V

⇒

2ch

1ch:5V/div, 2ch:5V/div

time:500 s/div

μ

(18) Soft Start Time vs. Ambient Temperature

Step-up DC/DC Converter

5.0

Inverting DC/DC Converter

4.0

3.5

3.0

2.5

2.0

1.5

1.0

4.5

4.0

V_IN=5.5V

3.6V

V_IN=5.5V

3.6V

3.5

3.0

2.5

2.0

2.7V

1.5

1.0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

(19) Maximum Duty Cycle vs. Ambient Temperature

Step-up DC/DC Converter

96

Inverting DC/DC Converter

96

94

92

90

88

86

84

94

92

90

88

86

V_IN=3.6V,V_ENP="H",V_ENN="L",V_MODE="L"

V_IN=3.6V,V_ENP="L",V_ENN="H",V_MODE="L"

84

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

29/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(20) Maximum Current Limit vs. Ambient Temperature

Step-up DC/DC Converter (V_OUTP=5.0V)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

Inverting DC/DC Converter (V_OUTN=-5.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF

5.0

4.5

4.0

3.5

3.0

2.5

2.0

5.0

4.5

4.0

3.5

3.0

2.5

2.0

V_IN=4.4V

2.7V

V_IN=4.4V

3.6V

2.7V

3.6V

V_ENP="H",V_ENN="L",V_MODE="L"

V_ENP="L",V_ENN="H",V_MODE="L"

-50

-25

0

25

50

75

)

100

-50

-25

0

25

50

75

)

100

Ambient Temperature: Ta (

℃

Step-up DC/DC Converter (V_OUTP=15.0V)

Inverting DC/DC Converter (V_OUTN=-15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

5.0

4.5

4.0

3.5

3.0

2.5

2.0

5.0

4.5

4.0

3.5

3.0

2.5

2.0

V_IN=5.5V

3.6V

V_IN=5.5V

V_ENP="L",V_ENN="H",V_MODE="L"

V_ENP="H",V_ENN="L",V_MODE="L"

-50

-25

0

25

50

75

)

100

-50

-25

0

25

50

75

)

100

Ambient Temperature: Ta (

℃

(21) Latch Time vs. Ambient Temperature

3.0

2.5

2.7V

2.0

3.6V

1.5

V_IN=5.5V

1.0

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

30/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(22) C_LDischarge Resistance vs. Ambient Temperature

Step-up DC/DC Converter

Inverting DC/DC Converter

400

350

300

250

200

150

100

400

350

300

250

200

150

100

2.7V

3.6V V_IN=5.5V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

(23) PFM Switching Current vs. Ambient Temperature

Step-up DC/DC Converter (V_OUTP=5.0V)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

Inverting DC/DC Converter (V_OUTN=-5.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=7.5kΩ, C_ZP=4.7nF

550

500

450

400

350

300

250

200

150

550

500

450

400

350

300

250

200

150

V_IN=4.4V

3.6V

V_ENP="H",V_ENN="L",V_MODE="H"

V_ENP="L",V_ENN="H",V_MODE="H"

-50

-25

0

25

50

75

)

100

-50

-25

0

25

50

75

)

100

Ambient Temperature: Ta (

℃

Step-up DC/DC Converter (V_OUTP=15.0V)

Inverting DC/DC Converter (V_OUTN=-15.0V)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

550

500

450

400

350

300

250

200

150

550

500

450

400

350

300

250

200

150

V_IN=5.5V

3.6V

V_ENP="H",V_ENN="L",V_MODE="H"

-50

-25

0

25

50

75

)

100

-50

-25

0

25

50

75

)

100

Ambient Temperature: Ta (

℃

31/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(24) Load Transient Response

Step-up DC/DC Converter: PWM/PFM MODE

Step-up DC/DC Converter: PWM MODE

(V_IN=3.6V, V_OUTP=5.0V, I_OUTP=200⇒1mA)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0), SBD_P: CMS03

P-ch MOS: EMH1303, R_ZP=8.2kΩ, C_ZP=4.7nF, C_FBP=47pF, R_SP=4.7kΩ

(V_IN=3.6V, V_OUTP=5.0V, I_OUTP=1⇒200mA)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0), SBD_P: CMS03

P-ch MOS: EMH1303, R_ZP=8.2kΩ, C_ZP=4.7nF, C_FBP=47pF, R_SP=4.7kΩ

V_ENP="H",V_ENN="L",V_MODE="L"

V_OUTP

1ch

2ch

I_OUTP= 200 1mA

⇒

I_OUTP= 1 200mA

⇒

2ch

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

μ

time:1ms/div

Step-up DC/DC Converter: PWM/PFM MODE

(V_IN=3.6V, V_OUTP=5.0V, I_OUTP=1⇒200mA)

(V_IN=3.6V, V_OUTP=5.0V, I_OUTP=200⇒1mA)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0), SBD_P: CMS03

P-ch MOS: EMH1303, R_ZP=8.2kΩ, C_ZP=4.7nF, C_FBP=47pF, R_SP=4.7kΩ

V_ENP="H",V_ENN="L",V_MODE="H"

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0), SBD_P: CMS03

P-ch MOS: EMH1303, R_ZP=8.2kΩ, C_ZP=4.7nF, C_FBP=47pF, R_SP=4.7kΩ

V_ENP="H",V_ENN="L",V_MODE="H"

V_OUTP

1ch

2ch

I_OUTP= 200 1mA

⇒

I_OUTP= 1 200mA

⇒

2ch

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

μ

time:1ms/div

32/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

Step-up DC/DC Converter: PWM MODE

(V_IN=3.6V, V_OUTP=15.0V, I_OUTP=1⇒50mA)

(V_IN=3.6V, V_OUTP=15.0V, I_OUTP=50⇒1mA)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

V_ENP="H",V_ENN="L",V_MODE="L"

V_OUTP

1ch

2ch

I_OUTP= 1 50mA

⇒

I_OUTP= 50 1mA

⇒

2ch

1ch:500mV/div, 2ch:50mA/div

time:200 s/div

time:1ms/div

μ

Step-up DC/DC Converter: PWM/PFM MODE

(V_IN=3.6V, V_OUTP=15.0V, I_OUTP=1⇒50mA)

(V_IN=3.6V, V_OUTP=15.0V, I_OUTP=50⇒1mA)

C_LP=4×4.7μF, L_P=3.3μH (VLF5014S-3R3M2R0)

SBD_P: CMS03, P-ch MOS: EMH1303, R_ZP=27kΩ, C_ZP=2.2nF

V_ENP="H",V_ENN="L",V_MODE="H"

V_OUTP

1ch

2ch

I_OUTP= 50 1mA

⇒

I_OUTP= 1 50mA

⇒

2ch

1ch:500mV/div, 2ch:50mA/div

time:200 s/div

μ

time:1ms/div

33/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

Inverting DC/DC Converter: PWM MODE

(V_IN=3.6V, V_OUTN=-5.0V, I_OUTN=1⇒200mA)

(V_IN=3.6V, V_OUTN=-5.0V, I_OUTN=200⇒1mA)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

V_ENP="L",V_ENN="H",V_MODE="L"

V_OUTN

1ch

2ch

I_OUTN= 200 1mA

⇒

I_OUTN= 1 200mA

⇒

2ch

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

time:500 s/div

μ

Inverting DC/DC Converter: PWM/PFM MODE

(V_IN=3.6V, V_OUTN=-5.0V, I_OUTN=1⇒200mA)

(V_IN=3.6V, V_OUTN=-5.0V, I_OUTN=200⇒1mA)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=130kΩ, C_ZN=0.47nF

V_ENP="L",V_ENN="H",V_MODE="H"

V_OUTN

1ch

2ch

I_OUTN= 200 1mA

⇒

I_OUTN= 1 200mA

⇒

2ch

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

time:500 s/div

μ

34/38

XC9519

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

Inverting DC/DC Converter: PWM MODE

(V_IN=3.6V, V_OUTN=-15.0V, I_OUTN=1⇒50mA)

(V_IN=3.6V, V_OUTN=-15.0V, I_OUTN=50⇒1mA)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

V_ENP="L",V_ENN="H",V_MODE="L"

V_OUTN

1ch

2ch

I_OUTN= 1 50mA

I_OUTN= 50 1mA

⇒

2ch

1ch:500mV/div, 2ch:50mA/div

1ch:200mV/div, 2ch:200mA/div

1ch:500mV/div, 2ch:50mA/div

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

time:500 s/div

μ

time:500μs/div

μ

time:100μs/div

Inverting DC/DC Converter: PWM/PFM MODE

(V_IN=3.6V, V_OUTN=-15.0V, I_OUTN=1⇒50mA)

(V_IN=3.6V, V_OUTN=-15.0V, I_OUTN=50⇒1mA)

C_LN=4×4.7μF, L_N=3.3μH (VLF5014S-3R3M2R0)

SBD_N: CMS03, R_ZN=200kΩ, C_ZN=0.47nF

V_ENP="L",V_ENN="H",V_MODE="H"

V_OUTN

1ch

2ch

I_OUTN= 1 50mA

I_OUTN= 50 1mA

⇒

2ch

1ch:500mV/div, 2ch:50mA/div

1ch:200mV/div, 2ch:200mA/div

1ch:500mV/div, 2ch:50mA/div

1ch:200mV/div, 2ch:200mA/div

time:100 s/div

time:500 s/div

μ

time:500μs/div

μ

time:100μs/div

35/38

XC9519 Series

■PACKAGING INFORMATION

●QFN-24 (unit:mm)

1 PIN INDENT

4.0±0.10

0.075

0.40±0.05

7

8

9

10 11 12

13

14

6

5

4

3

2

1

15

16

17

18

24 23 22 21 20 19

2.8±0.05

●QFN-24 Reference Pattern Layout (unit:mm)

●QFN-24 Reference Metal Mask Design (unit:mm)

36/38

XC9519

Series

■MARKING RULE

QFN-24

1pin

① represent product series.

MARK

9

PRODUCT SERIES

XC9519******-G

①②③④⑤⑥

② represents UVLO detect voltage.

MARK

A

UVLO VOLTAGE

PRODUCT SERIES

XC9519A*****-G

Detect: 2.2V, Hysteresis Width: 0.2V

③④ represents oscillation frequency and maximum current limit.

MARK

OSCILLATION

FREQUENCY

MAXIMUM

PRODUCT SERIES

XC9519*12A**-G

CURRENT LIMIT

③

④

1

2

1.2MHz

2.0A

⑤⑥ represents production lot number.

01～09, 0A～0Z, 11～9Z, A1～A9, AA～AZ, and B1～ZZ repeated

(G, I, J, O, Q, W excluded)

*No character inversion used.

37/38

XC9519 Series

1. The products and product specifications contained herein are subject to change without

notice to improve performance characteristics. Consult us, or our representatives

before use, to confirm that the information in this datasheet is up to date.

2. We assume no responsibility for any infringement of patents, patent rights, or other

rights arising from the use of any information and circuitry in this datasheet.

3. Please ensure suitable shipping controls (including fail-safe designs and aging

protection) are in force for equipment employing products listed in this datasheet.

4. The products in this datasheet are not developed, designed, or approved for use with

such equipment whose failure of malfunction can be reasonably expected to directly

endanger the life of, or cause significant injury to, the user.

(e.g. Atomic energy; aerospace; transport; combustion and associated safety

equipment thereof.)

5. Please use the products listed in this datasheet within the specified ranges.

Should you wish to use the products under conditions exceeding the specifications,

please consult us or our representatives.

6. We assume no responsibility for damage or loss due to abnormal use.

prior permission of TOREX SEMICONDUCTOR LTD.

38/38


型号：	XC9519
厂家：	Torex Semiconductor
描述：	Dual Output Step-Up/Inverting DC/DC Converter 双输出升压/负输出DC / DC转换器转换器
文件：	总38页 (文件大小：1801K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XC9519 [TOREX]

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