XCL303A052KR-G_技术文档

XCL303/XCL304 Series

ETR28016-001

Inductor Built-in Negative Output Voltage “micro DC/DC” Converters

☆Green Operation Compatible

■GENERAL DESCRIPTION

The XCL303/XCL304 series are small coil-integrated negative voltage micro DC/DC converter IC. The oscillating frequency is a

fast 2.5MHz and the small 2.5 x 2.0 x 1.0mm package contributes significantly to space saving in PCB area.

Further, integrating the coil together with the DC/DC simplifies the circuit board layout and minimizes potential noise interference.

Compared to a charge pump type solution, the switching method of the XCL303/XCL304 maintains a stable output voltage even

when the input voltage fluctuates. In addition, this new micro DC/DC can support larger output current than a charge pump

solution.

The PWM controlled XCL303 series can be selected for applications where low noise is important, and the PWM/PFM automatic

switching controlled XCL304 series can be selected for applications where high efficiency at light load current and low noise at

high load current is important.

The XCL303/XCL304 series allows users to select either a PWM control or PWM/PFM automatic switching control method,

which are optimum for applications where low noise and high efficiency are important.

Output voltage can be adjusted within the range of -1.2V to -6.0V using externally mounted resistors.

■FEATURES

Input Voltage Range

Output Voltage Range

FB Voltage

■APPLICATIONS

:

2.7V ~ 5.5V

●

Negative power supply for Optical transceiver

-1.2V ~ -6.0V

Negative power supply for AMP

0.5V ± 10mV

Negative power supply for LCD

V_REFVoltage

1.6V ± 40mV

Output Current

:

300mA @V_OUT=-3.0V, V_IN=3.3V(TYP.)

250μA (TYP.)

Negative power supply for CCD

Quiescent Current

Control Methods

General purpose Negative power supply

PWM Control (XCL303 Series)

PWM/PFM Control (XCL304 Series)

2.5MHz

Oscillation Frequency

Protection Function

Function

Current Limit (1.1A TYP.)

Soft Start Time External Adjustment

UVLO

Operating Ambient Temperature

Packages

:

-40 ~ +105℃

CL-2025-02 (2.5 x 2.0 x 1.0mm)

EU RoHS Compliant, Pb Free

Environmentally Friendly

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

XCL303/304 (V_IN= 3.7V, V_OUT= -3.3V)

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA7)

SD=PMEG2010BELD, R_FB1=150kΩ, R_FB2=43kΩ

7

SD

L1

1

V_IN

GND

CE

6

5

4

L_x

R_FB1

C_IN

2

3

FB

R_FB2

C_L

V_REF

L2

8

C_VREF

1/24

XCL303/XCL304 Series

■ BLOCK DIAGRAM

L1

L2

Inductor

AV_DD

Phase

Compensation

Current Sense

Current Limiter

PV_DD

FB

AV_DD

Error Amp

-

PWM

Comparator

V_REF

V_INstart up

Controller

-

PWM/PFM

Controller Logic

Buffer

Driver

V_REF

+

Each

L_X

Circuit

CE

CE Controller Logic

RAMP Wave

Generatar

Oscillator

PV_DD

AV_DD

V_IN

GND

UVLO

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

■PRODUCT CLASSIFICATION

●Ordering information

XCL303①②③④⑤⑥-⑦ PWM Control

XCL304①②③④⑤⑥-⑦ PWM/PFM Automatic Switching Control

DESIGNATOR

ITEM

SYMBOL

DESCRIPTION

①

②③

④

Product Type

A

05

Refer to Selection Guide

Feedback Voltage

Oscillation Frequency

Packages (Order Unit)

Feedback Voltage is fixed at 0.5V

2.5MHz

2

(*1)

⑤⑥-⑦

KR-G

CL-2025-02 (3,000pcs/Reel)

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

●Selection Guide

OUTPUT

CHIP

CURRENT

LIMIT

SOFT

TYPE

A

UVLO

Yes

VOLTAGE

ENABLE

START

External set

Yes

2/24

XC9140 (De

XCL303/XCL304

Series

■PIN CONFIGURATION

L1

7

V_IN

6

1

2

3

L_X

FB

V_REF

GND

5

4

CEꢀ

8

L2

(BOTTOM VIEW)

* The dissipation pad should be solder-plated in recommended mount pattern and metal masking to enhance mounting

strength and heat release. If the pad needs to be connected to other pins, it should be connected to the GND (No. 5)

pin.

■PIN ASSIGNMENT

PIN NUMBER

PIN NAME

FUNCTIONS

CL-2025-02

1

2

3

4

5

6

7

8

L_X

FB

Switching Output

Feedback Voltage

Reference Voltage

Chip Enable

V_REF

CE

GND

V_IN

Ground

Power Input

L1

Inductor Electrodes

L2

■ FUNCTION

PIN NAME

SIGNAL

STATUS

Operation

Stand-by

H

L

CE

* Please do not leave the CE pin open.

■ABSOLUTE MAXIMUM RATINGS

Ta=25˚C

PARAMETER

SYMBOL

RATINGS

UNITS

V

V_INPin Voltage

L_XPin Voltage

V_IN

-0.3 ~ +6.2

V_IN-13.0 ~ V_IN+0.3 or +6.2 ^(*1)

-0.3 ~ V_IN+0.3 or +6.2 ^(*1)

-1.0 ~ +1.0 ^(*3)

V_LX

V

FB Pin Voltage

V_FB

V

V_REFPin Current

I_REF

mA

V

V_REFPin Voltage

V_REF

V_CE

-0.3 ~ V_IN+0.3 or +6.2 ^(*1)

CE Pin Voltage

-0.3 ~ +6.2

V

1000 (40mm x 40mm Standard board) ^(*2)

Power Dissipation

Pd

mW

˚C

Operating Ambient Temperature

Storage Temperature

* All voltages are described based on the GND pin.

Topr

Tstg

-40 ~ +105

-55 ~ +125

˚C

^(*1)The maximum value should be either VIN+0.3V or +6.2V in the lowest.

(*2)

The power dissipation figure shown is PCB mounted and is for reference only.

The mounting condition is please refer to PACKAGING INFORMATION.

Please do not apply voltage to the VREF pin from outside.

(*3)

3/24

XCL303/XCL304 Series

■ELECTRICAL CHARACTERISTICS

XCL303A052KR-G, XCL304A052KR-G

Ta=25˚C

MIN.

2.7

PARAMETER

Input Voltage

SYMBOL

V_IN

CONDITIONS

TYP.

-

MAX. UNITS CIRCUIT

-

5.5

0.51

1.64

-

V

-

V_IN=V_CE=3.7V, The voltage which L_Xstarts

oscillation while V_FBis increasing.

(*2)

FB Voltage

V_REFVoltage

V_FB(E)

0.49

1.56

1.85

0.50

1.60

2.10

①

V_REF

V_IN=V_CE=3.7V

V_IN=V_CE,V_FB=V_FB(T)×1.025 ^(*3)

Voltage which Lx pin holding “L” level ^(*1)

V_IN=V_CE, V_FB(T)×1.025 ^(*3)

,

UVLO Detection Voltage

V_UVLOD

,

-

2.25

2.60

V

UVLO Release Voltage

V_UVLOR

①

Voltage which Lx pin holding “H” level ^(*1)

0.08

215

-

0.15

250

0

0.25

310

0.1

V

UVLO Hysteresis Width

Supply Current

V_UVLOH

I_DD

V_UVLOH=V_UVLOR- V_UVLOD

-

V_IN=V_CE=5.5V, V_FB=V_FB(T)×0.975 ^(*3)

V_IN=5.5V, V_CE=0V

②

μA

Stand-by Current

I_STB

PFM Switch Current

(XCL304 Series)

When connected to external components,

I_OUT=1mA

I_PFM

-

300

1.5

-

mA

ms

③

FB Voltage rise up time,

V_FB=0V→V_FB(T)×0.95 ^(*3), V_CE=0V→V_IN,

Soft Start Time

t_SS

0.5

2.5

I_OUT=1mA, CV_REF=0.47uF

Oscillation Frequency

Maximum ON Time

Minimum ON Time

f_OSC

V_FB=V_FB(T)×1.025 ^(*3)

2.1

300

-

2.5

350

-

2.9

385

0

MHz

ns

①

t_ONMAX

t_ONMIN

V_FB=V_FB(T)×0.975 ^(*3)

ns

When connected to external components,

-

75

-

%

Efficiency

EFFI

R_LXH

③

④

V_OUT=-3.3V, I_OUT=100mA

L_XSW "H" ON

Resistance ^(*4)

V_IN=5.0V, I_LX=100mA

0.50

0.65

Ω

L_XSW "L" Leakage

Current

I_LEAKL

I_LIM

V_IN=5.5V, V_CE=0V, V_LX=0V

-

0.01

0.1

-

μA

⑤

①

Maximum Current Limit

When connected to external components

1100

mA

V_REFVoltage Temperature

Characteristics



V_REF

/

-40℃< Topr < 105℃

-

±50

-

ppm / ^oC

①

(V_REF

・



topr)

FB Voltage Temperature

Characteristics



V_FB

/

-40℃< Topr < 105℃

(V_FB・



topr)

V_IN=5.5V, V_FB=V_FB(T)×1.025 ^(*3)

,

CE "H" Voltage

CE "L" Voltage

V_CEH

Applied voltage to V_CE, voltage changes L_Xto

"H" level ^(*1)

1.2

-

5.5

0.4

V

①

V_IN=5.5V, V_FB=V_FB(T)×1.025 ^(*3)

,

V_CEL

Applied voltage to V_CE, voltage changes L_Xto GND

"L" level ^(*1)

CE "H" Current

CE "L" Current

FB "H"" Current

FB "L" Current

Inductance Value

I_CEH

I_CEL

I_FBH

I_FBL

L

V_IN=V_CE=5.5V

-0.1

-

0.1

-

μA

μH

⑥

-

V_IN=5.5V, V_CE=0V

V_IN=V_CE=V_FB=5.5V

V_IN=V_CE=5.5V, V_FB=0V

Test Frequency=1MHz

-

2.2

Inductor

I_DC

ΔT=+40℃

-

850

-

mA

-

Rated Current

Unless otherwise stated, V_IN=V_CE=3.7V

^(*1)"H" = V_IN~ V_IN-1.2V, "L" = +0.1V ~ -0.1V

(*2)

V

: Effective FB Voltage,

FB(E)

(*3)

: Setting FB Voltage(0.5V)

FB(T)

^(*4)ON resistance = (V_IN– V_LXpin measurement voltage) / 100mA

4/24

XC9140 (De

XCL303/XCL304

Series

■TEST CIRCUITS

< Test Circuit No.① >

< Test Circuit No.② >

Wave Form Meas ur e P oi nt

L2

L1

L2

L1

L_X

CE

V_IN

CE

V_IN

FB

C_IN

A

V_REF

GND

RL_X

CV_{R EF}

V

< Test Circuit No.③ >

< Test Circuit No.④ >

V

Wave Form Meas ur e P oi nt

L2

L1

L_X

L2

L1

L_X

CE

V_IN

CE

R_{FB 1}

V_IN

FB

C_IN

R_{FB 2}

R_L

C_L

V_REF

GND

V_REF

GND

CV_{R EF}

IS

CV_{R EF}

< Test Circuit No.⑤ >

< Test Circuit No.⑥ >

L2

L1

L2

L1

L_X

CE

L_X

CE

V_IN

FB

C_IN

A

V_REF

GND

V_REF

A

GND

CV_{R EF}

A

5/24

XCL303/XCL304 Series

■TYPICAL APPLICATION CIRCUIT

EXTERNAL COMPONENTS SELECTION

7

SD

L1

1

V_IN

GND

CE

6

5

4

L_x

R_FB1

C_IN

2

3

FB

R_FB2

C_L

V_REF

L2

8

C_VREF

【Typical example】

Notes

MANUFACTURE

PRODUCT NUMBER

LMK105CBJ106MV

VALUE

Ta≦85℃

Ta≦105℃

Ta≦85℃

Ta≦105℃

-

Taiyo Yuden

Murata

10μF/10V

1μF/10V

1A/20V

C_IN

GRM188D71A106KA73D

LMK105CBJ106MV

GRM188D71A106KA73D

GRM155C71A105KE11

PMEG2010BELD

Taiyo Yuden

Murata

C_L

C_VREF

SD

Murata

Nexperia

-

ON Semiconductor

NSR1020MW2

1A/20V

* Take capacitance loss, withstand voltage, rated current and other conditions into consideration when selecting components.

* 10μF ~ 44μF output capacitor (C_L) value is recommended.

When the output capacitor (C_L) is large, there is a possibility that the output voltage will be unstable.

* If a tantalum or electrolytic capacitor is used for the output capacitor (C_L), ripple voltage will increase, and there is a possibility

that operation will become unstable. Test fully using the actual device.

* When Schottky Diodes, which have a large junction capacity are used, there is a possibility that the output voltage will be

unstable.

＜Output voltage (V_OUTSET) setting＞

Output voltage can be set by adding an external resistor.

Output voltage is set by the following equation according to R_FB1, R_FB2, V_FBand V_REF

.

V_OUTSET= V_FB- R_FB1/ R_FB2× ( V_REF- V_FB

)

Please select within 100kΩ ≦ R_FB1+ R_FB2≦ 500kΩ range.

V_OUTSET

-1.2V

R_FB1

R_FB2

130kΩ

43kΩ

200kΩ

150kΩ

220kΩ

-3.3V

-5.0V

6/24

XC9140 (De

XCL303/XCL304

Series

■TYPICAL APPLICATION CIRCUIT

EXTERNAL COMPONENTS SELECTION (Continued)

＜Setting soft start time (t_SS)＞

Soft start time is determined by the capacity of the C_VREFconnected to the V_REFterminal.

Please select the capacitance value of C_VREFwithin the range of 0.47μF ~ 10μF referring to the below graph.

50

V_IN= 3.7V, V_OUT= -3.3V

I_OUT= 1mA, 200mA

Ta = 25℃

40

30

20

10

0

1

2

3

4

5

6

7

8

9

10

C_VREFCapacitance (uF)

7/24

XCL303/XCL304 Series

■OPERATIONAL EXPLANATION

This IC consists of a standard voltage reference, error amp, ramp wave circuit, oscillator circuit, PWM comparator, PWM/PFM

controller, Pch driver transistor, current sensing circuit, UVLO circuit, V_REFstartup circuit and etc.

Control method is a current mode control method which allows for the use of low ESR ceramic capacitors.

L1

L2

Inductor

AV_DD

Phase

Compensation

Current Sense

Current Limiter

PV_DD

FB

AV_DD

Error Amp

-

PWM

Comparator

V_REF

V_INstart up

Controller

-

PWM/PFM

Controller Logic

Buffer

Driver

V_REF

+

Each

L_X

Circuit

CE

CE Controller Logic

RAMP Wave

Generatar

Oscillator

PV_DD

AV_DD

V_IN

GND

UVLO

XCL303/XCL304 Series block diagram

8/24

XC9140 (De

XCL303/XCL304

Series

■OPERATIONAL EXPLANATION (Continued)

The FB terminal voltage divided by the output voltage is compared with the V_REFvoltage by the error amp. Phase compensation

is applied to the error amp output, which is then forwarded to the PWM comparator. At the PWM comparator the error amp output

and ramp wave are compared to determine the ON time during PWM control.

The XCL303 series (PWM control) is switched using a constant switching frequency (f_OSC) independent of the output current.

During light load current, the ON time is short, and the IC operates in a non-continuous mode. As the output current increases,

the ON time becomes longer, and the IC operates in a continuous mode.

At high load currents, the ON time depends heavily on the input voltage, output voltage, and output current, and the maximum

ON time (t_ONMAX) restriction determines the maximum output current that can flow under the conditions of each input voltage and

output voltage.

Refer to the typical performance characteristics for the maximum output current under each condition.

f_OSC

t_ON

Lx

0V

I_PFM

Coil

Current

Coil

Current

I_OUT

0mA

XCL303 Series: Example of operation at light load current

XCL303 Series: Example of operation at high load currents

The XCL304 series (PWM/PFM automatic switching control) turns ON the Pch driver transistor until the coil current reaches the

PFM current (I_PFM) and to lower the switching frequency during light load current. This operation reduces loss during light loads to

achieve high efficiency from light to high load currents.

As the output current grows larger, the switching frequency increases proportional to the output current, and when the switching

frequency reaches the f_OSCto switch from PFM control to PWM control the switching frequency is fixed.

f_OSC

t_ON

Lx

0V

I_PFM

Coil

Current

Coil

I_OUT

Current

I_OUT

0mA

XCL304 Series: Example of operation at high load currents

XCL304 Series: Example of operation at light load current

Further, the phase compensation circuit optimizes the error amp frequency characteristics and is used to phase compensate the

Pch driver transistor current feedback signal. This achieves output voltage stability even when low ESR capacitors, such as

ceramic capacitors are used.

9/24

XCL303/XCL304 Series

■OPERATIONAL EXPLANATION (Continued)

When a “H” voltage (V_CEH) is input to the CE terminal, it operates normally after the output voltage is started by the soft start

function.

When a “L” voltage (V_CEL) is input to the CE terminal, it goes to the stand-by state, the quiescent current is suppressed to the

stand-by current I_STB(TYP.0 μA) level and the Pch driver transistor turns OFF.

When the V_INterminal voltage drops below the UVLO detect voltage level (V_UVLOD), the UVLO function operates and turns off the

Pch driver transistor to prevent any erroneous pulse output due to possible unstable action of the internal circuit.

When the V_INterminal voltage increases above the UVLO release voltage level (V_UVLOR), the UVLO function is released. After

the UVLO function is released, the soft start function starts the output voltage and the IC operates normally.

The UVLO function operates even if the VIN terminal momentarily drops below the UVLO detect voltage.

In addition, whilst the UVLO function is in operation, rather than being in a stand-by state, the IC is in a switching operation

stopped state, so the internal circuit is still operating.

This gently starts up the output voltage when the IC starts up and the UVLO function is released to suppress the inrush current.

The V_REFstartup circuit operates after the “H” voltage (V_CEH) is input to the CE terminal and after the UVLO function is released.

The V_REFstartup circuit charges the C_VREFwith current and can gently raise the V_REFvoltage and FB voltage. In response to this,

the output voltage is lowered proportionally to the increase in the V_REFvoltage and FB voltage. This action makes it possible to

prevent input current inrush and to smoothly lower the output voltage.

The output voltage startup time (soft start time) is determined by the capacity of the C_VREFconnected to the V_REFterminal.

In the stand-by state and during the UVLO function operation, the charge accumulated in the C_VREFis discharged and the V_REF

voltage is made to be 0V.

Soft Start Time : tss

Normal operation

Stand-by

(Depend on C_{VRE F}

)

0V

V_OUT

V_{OUTSE T}

Fall time depends on Iout

V_REFVoltage

1.6V (TYP.)

V_REF

V_FB

V_FBVoltage

0.5V (TYP.)

0V

V_CE

V_CEH

V_CEL

0V

10/24

XC9140 (De

XCL303/XCL304

Series

■OPERATIONAL EXPLANATION (Continued)

The current limit circuit monitors the current flowing to the Pch driver transistor to restrict overcurrent. The current limit function

operates as follows.

1) The current flowing to the Pch driver transistor is increased, and when the current limit value of I_LIM=1100mA (TYP.) is

reached, the current limit state is entered and the Pch driver transistor is turned OFF.

2) The Pch driver transistor is turned OFF for a period of 4μs (TYP.), and the coil current is greatly decreased.

During this time, lowering the coil current that has reached the current limit lowers the input current and output current

while the current is restricted.

3) Other switching operations are performed, and when the output voltage is a load resistance that does not reach the set

voltage, the coil current increases and the current limit function operates again.

4) Operations 1) to 3) are repeated during the current limit state period.

5) When the load resistance increases much more than the load resistance during current limit detection, the current limit

state is released and the IC automatically returns to normal operation.

11/24

XCL303/XCL304 Series

■NOTE ON USE

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

exceeded.

2) Switching regulators like this DC/DC converter generate spike noise and ripple voltage. This greatly affects the surrounding

components (Schottky diodes, capacitors, peripheral component circuit board layout etc.). When making a design, please be

sure to sufficiently check this in an actual device.

3) The DC/DC converter characteristics greatly depend not only on the characteristics of this IC but also on those of externally

connected components, so refer to EXTERNAL COMPONENTS SELECTION and the specifications of each component and

be careful when selecting the components. Be especially careful of the characteristics of the capacitor used for the load

capacity C_Land use a capacitor with B characteristics (JIS Standard) or an X7R/X5R (EIA Standard) ceramic capacitor.

4) The maximum output current of this IC is determined by the current limit value and the maximum ON time restrictions, and this

depends greatly on the input voltage and output voltage. Further, when the input voltage is low and during low temperature,

there is a possibility that the maximum ON time decreases and the maximum output current drops. For the maximum output

current, please refer to the typical performance characteristics of “Maximum Output Current vs. Output Voltage.”

5) With the XCL303 series, there is a possibility that the switching frequency will decline when the input voltage is high and the

load current is light.

6) When Schottky Diodes, which have a large junction capacity, are used or when the C_Loutput capacity is large, there is a

possibility that the output voltage will be unstable.

7) When there is steep output current fluctuation, there could be a large drop in the output voltage that can cause the duty to

increase which in turn triggers the operation of the current limit function.

8) If the IC is started under a condition where the output current is large, there is a possibility that the inrush current will increase

and the current limit function may operate.

9) When the input voltage is lowered below the UVLO detect voltage level for a short time, there are times when it is not possible

to discharge the C_VREFcharge. When the input voltage is started again in this state, the shortening of the soft start time at startup

could trigger the current limit function.

10) Under the condition where the input voltage is close to 1V, there is a possibility that the UVLO function will not operate.

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.

12) The proper position of mounting is based on the coil terminal

12/24

XC9140 (De

XCL303/XCL304

Series

■NOTE ON USE (Continued)

13) Note on board layout

1. In order to stabilize V_INvoltage level, we recommend that a by-pass capacitor (C_IN) be connected as close as possible to the

V_IN& GND pins.

2. Please mount each external component as close to the IC as possible.

3. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit

impedance.

4. Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused by high ground

currents at the time of switching may result in instability of the IC.

5. This series’ internal driver transistors bring on heat because of the output current and ON resistance of Pch driver

transistors.

6. As precautions on mounting, please set the mounting position accuracy within 0.05 mm.

●Recommended Pattern Layout

Layer1

Layer2

Layer3

Layer4

14) Appearance (Coil)

1. Coils are compliant with general surface mount type chip coil (inductor) specifications and may have scratches,

flux contamination and the like.

13/24

XCL303/XCL304 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1) Efficiency vs. Output Currrent

XCL304A052 V_OUT= -1.8V

XCL303A052 V_OUT= -1.8V

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0

V_IN= V_CE

Ta = 25℃

V_IN=5.0V

V_IN=3.7V

V_IN= V_CE

Ta = 25℃

V_IN=2.7V

V_IN=3.7V

V_IN=2.7V

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

XCL304A052 V_OUT= -3.3V

XCL303A052 V_OUT= -3.3V

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0

V_IN= V_CE

Ta = 25℃

V_IN=5.0V

V_IN= V_CE

Ta = 25℃

V_IN=3.7V

V_IN=5.0V

V_IN=2.7V

V_IN=3.7V

V_IN=2.7V

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

XCL303A052 V_OUT= -5.0V

XCL304A052 V_OUT= -5.0V

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0

V_IN=5.0V

V_IN= V_CE

Ta = 25℃

V_IN=3.7V

Ta = 25℃

V_IN=2.7V

V_IN=5.0V

V_IN=3.7V

V_IN=2.7V

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

14/24

XC9140 (De

XCL303/XCL304

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Output Voltage vs. Output Current

XCL304A052 V_OUT= -1.8V

XCL303A052 V_OUT= -1.8V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

-2.0

-1.9

-1.8

-1.7

-1.6

-2.0

-1.9

-1.8

-1.7

-1.6

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

XCL303A052 V_OUT= -3.3V

XCL304A052 V_OUT= -3.3V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=150kΩ,

R_FB2=43kΩ

-3.5

-3.4

-3.3

-3.2

-3.1

-3.5

-3.4

-3.3

-3.2

-3.1

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

XCL303A052 V_OUT= -5.0V

XCL304A052 V_OUT= -5.0V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

-5.2

-5.1

-5.0

-4.9

-4.8

-5.2

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

-5.1

-5.0

-4.9

-4.8

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

15/24

XCL303/XCL304 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(3) Ripple Voltage vs. Output Current

XCL303A052 V_OUT= -1.8V

XCL304A052 V_OUT= -1.8V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=160kΩ, R_FB2=75kΩ

200

150

100

50

200

150

100

50

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

0

1

10

100

1000

1

10

100

1000

Output Current : I_OUT(mA)

XCL303A052 V_OUT= -3.3V

XCL304A052 V_OUT= -3.3V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

200

150

100

50

200

150

100

50

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

0

1

10

100

1000

10

100

1000

Output Current : I_OUT(mA)

XCL304A052 V_OUT= -5.0V

XCL303A052 V_OUT= -5.0V

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD

R_FB1=200kΩ, R_FB2=39kΩ

200

150

100

50

200

150

100

50

V_IN= V_CE

Ta = 25℃

V_IN= 2.7V, 3.7V, 5.0V

V_IN= V_CE

Ta = 25℃

V_IN=2.7V,3.7V

V_IN=5.0V

0

1

10

100

1000

10

100

1000

Output Current : I_OUT(mA)

16/24

XC9140 (De

XCL303/XCL304

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) Maximum Output Current vs. Output Voltage

(5) V_REFVoltage vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

1.8

400

V_ＩＮ= 3.7V

V_IN= V_CE

350

1.7

300

250

V_IN=3.3V

1.6

1.5

1.4

200

V_IN=4.2V

V_IN=3.7V

150

100

50

V_IN=5.5V

V_IN=2.7V

0

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta(℃)

Output Voltage : V_OUT(V)

(6) FB Voltage vs. Ambient Temperature

(7) Supply Current vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73),

C

_VREF=1μF(GRM155C71A105KE11)

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

0.54

0.52

0.50

0.48

0.46

0.44

500

400

300

200

100

0

V_IN= V_CE= 5.5V

V_FB= V_FB(T)×0.975

V_ＩＮ= V_CE= 3.7V

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta(℃)

(8) Stand-by Current vs. Ambient Temperature

(9) UVLO Voltage vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

5.0

4.0

3.0

2.0

1.0

0.0

2.5

2.3

2.1

1.9

1.7

V_IN= V_CE= 3.7V

V_ＩＮ= 5.5V

V_CE= 0V

V_UVLOR

V_UVLOD

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta(℃)

17/24

XCL303/XCL304 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(10) PFM Switch Current vs. Ambient Temperature

(11) Maximum Current Limit vs. Ambient Temperature

XCL304A052

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD,

R_FB1=150kΩ, R_FB2=43kΩ

XCL30xA052

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD,

R_FB1=150kΩ, R_FB2=43kΩ

600

1800

V_IN= V_CE, V_OUT= -3.3V

500

V_IN=2.7V

1500

V_IN=5.0V

V_IN=3.7V

V_IN=2.7V

400

1200

300

200

100

0

900

600

300

0

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta (℃)

(12) Oscillation Frequency vs. Ambient Temperature

(13) Maximum ON Time vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11),SD:PMEG2010BELD,

R_FB1=150kΩ, R_FB2=43kΩ

XCL30xA052

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

2.9

500

V_IN= 2.7V,3.7V,5.0V

V_IN= V_CE

V_FB= V_FB(T)×1.025

V_IN= 2.7V,3.7V,5.0V

V_FB= V_FB(T)×1.025

V_OUT= -3.3V

400

2.7

V_ＩＮ= V_CE

300

200

100

0

2.5

2.3

2.1

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta(℃)

(14) Minimum OFF Time vs. Ambient Temperature

(15) Lx SW "H" ON Resistance vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μFGRM155C71A105KE11)

100

1.0

V_IN= 2.7V,3.7V,5.0V

V_IN= V_CE

I_LX= 100mA

V_IN=5.0V

V_FB= V_FB(T)×1.025

V_IN=3.7V

80

0.8

0.6

0.4

0.2

0.0

60

40

20

0

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta(℃)

18/24

XC9140 (De

XCL303/XCL304

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(16) Lx SW "L" Leakage Current vs. Ambient Temperature

(17) CE "H" Voltage vs. Ambient Temperature

XCL30xA052

C_IN=10μF(GRM188D71A106KA73),

C

_VREF=1μF(GRM155C71A105KE11)

C_IN=10μF(GRM188D71A106KA73), C_VREF=1μF(GRM155C71A105KE11)

1.4

3.0

2.5

2.0

1.5

1.0

0.5

0.0

V_IN= 5.0V

1.2

V_CE= V_LX= 0V

V_IN=5.0V

V_IN=2.7V

1.0

0.8

0.6

0.4

0.2

0.0

-50

-25

0

25

50

75

100

125

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta (℃)

(18) CE "L" Voltage vs. Ambient Temperature

XCXLC3L03x0Ax0A5025K2R

C_IN=10μF(GRM188DC7IN1=A1100μ6FK(AL7M3)K)1, 05CCBJ1=016μMFV(GLFR)M155C71A105KE11)

VREF

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

V_IN= 2.7V,5.50V

-50

-25

0

25

50

75

100

125

Ambient Temperature: Ta (℃)

19/24

XCL303/XCL304 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(19) Rising Output Voltage

XCL303A052

XCL304A052

V_IN= V_CE= 0→3.7V, I_OUT= 1mA

Ta = 25℃, V_OUT= -3.3V

V_IN(5V/div)

V_LX(5V/div)

V_IN(5V/div)

V_LX(5V/div)

V_OUT(2V/div)

500μs/div

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

XCL303A052

XCL304A052

V_IN= V_CE=0→3.7V,

I_OUT= 300mA

V_IN= V_CE=0→3.7V, I_OUT= 300mA

Ta = 25℃, V_OUT= -3.3V

V_IN(5V/div)

V_LX(5V/div)

V_OUT(2V/div)

V_LX(5V/div)

V_OUT(2V/div)

500μs/div

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

20/24

XC9140 (De

XCL303/XCL304

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(20) Load Transient Response

XCL304A052

XCL303A052

V_IN= V_CE= 3.7V, I_OUT= 10mA→50mA (tr=tf=10μs)

Ta = 25℃, V_OUT= -3.3V

V_OUT

V_OUT(500mV/div)

V_LX(5V/div)

V_OUT(500mV/div)

V_LX(5V/div)

V_LX

I_OUT

I_OUT(50mA/div)

500μs/div

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

V_OUT

XCL303A052

V_IN= V_CE= 3.7V, I_OUT= 10mA→100mA

Ta = 25℃, V_OUT= -3.3V

XCL304A052

V_IN= V_CE= 3.7V, I_OUT= 10mA→100mA

Ta = 25℃, V_OUT= -3.3V

V_OUT(500mV/div)

V_LX(5V/div)

V_OUT(500mV/div)

V_LX(5V/div)

I_OUT(100mA/div)

500μs/div

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

V_OUT

XCL304A052

XCL303A052

V_IN= V_CE= 3.7V, I_OUT= 100mA→300mA (tr=tf=10μs)

Ta = 25℃, V_OUT= -3.3V

V_OUT(500mV/div)

V_LX(5V/div)

V_OUT(500mV/div)

V_LX(5V/div)

I_OUT(100mA/div)

500μs/div

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

C_IN=10μF(GRM188D71A106KA73), C_L=10μF(GRM188D71A106KA73)

C_VREF=1μF(GRM155C71A105KE11), SD:PMEG2010BELD

R_FB1=150kΩ, R_FB2=43kΩ

21/24

XCL303/XCL304 Series

■PACKAGING INFORMATION

For the latest package information go to, www.torexsemi.com/technical-support/packages

PACKAGE

OUTLINE / LAND PATTERN

CL-2025-02 PKG

THERMAL CHARACTERISTICS

Standard Board CL-2025-02 Power Dissipation

CL-2025-02

22/24

XC9140 (De

XCL303/XCL304

Series

■MARKING RULE

●CL-2025-02

① Represents products series

MARK

PRODUCT SERIES

N

P

XCL303******-G

XCL304******-G

1

2

3

6

5

4

② Represents product type and FB voltage

MARK

0

PRODUCT TYPE

A

FB VOLTAGE (V)

0.5

PRODUCT SERIES

XCL30*A05*KR-G

③ Represents integer of Oscillation frequency

MARK

2

OSCILLATION FREQUENCY

2.5MHz

PRODUCT SERIES

XCL303/4***2KR-G

④, ⑤ represents production lot number

01～09、0A～0Z、11～9Z、A1～A9、AA～AZ、B1～ZZ in order.

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

Note: No character inversion used.

23/24

XCL303/XCL304 Series

1. The product 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. The information in this datasheet is intended to illustrate the operation and characteristics of our

products. We neither make warranties or representations with respect to the accuracy or

completeness of the information contained in this datasheet nor grant any license to any

intellectual property rights of ours or any third party concerning with the information in this

datasheet.

3. Applicable export control laws and regulations should be complied and the procedures required

by such laws and regulations should also be followed, when the product or any information

contained in this datasheet is exported.

4. The product is neither intended nor warranted for use in equipment of systems which require

extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause

loss of human life, bodily injury, serious property damage including but not limited to devices or

equipment used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile

industry and other transportation industry and 5) safety devices and safety equipment to control

combustions and explosions. Do not use the product for the above use unless agreed by us in

writing in advance.

5. Although we make continuous efforts to improve the quality and reliability of our products;

nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent

personal injury and/or property damage resulting from such failure, customers are required to

incorporate adequate safety measures in their designs, such as system fail safes, redundancy

and fire prevention features.

6. Our products are not designed to be Radiation-resistant.

7. Please use the product listed in this datasheet within the specified ranges.

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

Torex Semiconductor Ltd in writing in advance.

TOREX SEMICONDUCTOR LTD.

24/24


型号：	XCL303A052KR-G
厂家：	Torex Semiconductor
描述：	Inductor Built-in Negative Output Voltage âmicro DC/DCâ Converters
文件：	总24页 (文件大小：778K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XCL303A052KR-G [TOREX]

相关型号：

XCL304

XCL304A052KR-G

XCLA00811001C

XCLA00811102B

XCLA00812702C

XCLA00817401B

XCLA0082100BF

XCLA0082430BD

XCLA00828001B

XCLA00844202F

XCLA00845901D

XCLA00854202C