XC9122D091EL-G [TOREX]
Switching Controller,;
| 型号： | XC9122D091EL-G |
| 厂家： | 
Torex Semiconductor |
| 描述： | Switching Controller, 开关 |
| 文件： | 总17页 (文件大小：447K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XC9120/XC9121/XC9122Series
ETR0409-004
Step-Up DC/DC Controller IC, MAXDUTY: 93%
☆GreenOperation-Compatible
■GENERAL DESCRIPTION
XC9120/9121/9122 Series are PWM, PWM/PFM auto/external switching controlled step-up DC/DC converter controller ICs.
Since maximum duty ratio is as large as 93%, the series is the best for the applications used as high step-up ratios, such as
the LCD panels and OLED. In this series, even if it is a high step-up ratio, the output voltage stabilized at high efficiency can
be obtained. With 0.9V (±2.0%) of reference voltage supply internal, and using external resistors, RFB1 and 2, output
voltage can be set up freely within a range of 1.5V to 30V. For a current sense, with the use of RSENSE, ceramic capacitors
can be used as load capacitors and allows for lower output ripple and reduced PCB area requirements.
Control automatically switches from PWM to PFM during light loads with the XC9121 series and the XC9122 series can
switch the control from PWM to PFM using external signals depending on the circuit conditions..
During stand-by (when the CE pin is low), all circuits are shutdown to reduce current consumption to as low as 1.0μA or less.
The overcurrent limit circuit of this IC is designed to monitor the ripple voltage of the FB pin and operates the IC to stop when
the ripple voltage runs over 250mV. The IC resumes its operation with a toggle of the CE pin or by turning the power supply
back on.
■FEATURES
■APPLICATIONS
●Power Supply for the LCDs.
Input Voltage Range : 0.9V~6.0V
Operating Voltage Range : 1.8V~6.0V
Output Voltage Range : 1.5V~30V (externally set)
Reference voltage 0.9V (±2.0%)
●Organic electroluminescence display (OELD)
Oscillation Frequency : 100kHz (±15%)
Output Current
Control
: ≥80mA (VIN=3.6V, VOUT=15V)*
: XC9120 (PWM)
: XC9121 (PWM/PFM Automatic)
: XC9122 (PWM/PFM Externally)
High Efficiency
: 85% (TYP.)
: (VIN=3.6V, VOUT=15V, IOUT=10mA)*
: ISTB=1.0μA (MAX.)
: Low ESR capacitor compatible
: Operates when ripple is 250mV
Stand-by Function
Load Capacitors
Current Limiter
Maximum Duty Cycle : 93% (TYP.) for High Step-up Ratio
Packages : SOT-25, USP-6C
* When using external components showing in the circuit below.
■TYPICAL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
XC9122D091 (100kHz, 15.0V)
L=47uH(CDRH5D28),SD:XB01SB04A2
CL=40uF(Ceramic),Tr:161A11A1
100
4.2V
PWM/PFM
80
VIN=2.7V
60
3.2V
3.6V
PWM
40
20
0
0.1
1
10
100
Output Current: IOUT(mA)
1/17
XC9120/XC9121/XC9122 Series
■PIN CONFIGURATION
EXT
GND
5
4
*
The dissipation pad for the
USP-6C package should be
solder-plated in recommended
mount pattern and metal masking
so as to enhance mounting strength
and heat release. If the pad needs
to be connected to other pins, it
should be connected to the VDD pin
(Pin #2).
1
2
3
FB
V
DD
CE
USP-6C (BOTTOM VIEW)
SOT-25 (TOP VIEW)
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTION
SOT-25 USP-6C
1
2
6
2
FB
VDD
Output Voltage Setting Resistor Connection
Supply Voltage
CE
Chip Enable (Operates when "H" Level)
PWM/PFM Switch*
3
4
CE (/PWM)
GND
EXT
4
5
-
3
1
5
Ground
External Transistor Drive Connection
No Connection
NC
* The XC9122 series combines the CE pin and PWM/PFM switch pin.
■FUNCTION
XC9120/9121 Series
CE PIN
IC OPERATIONAL STATE
H
L
Operation
Shut-Down
XC9122 Series
CE/PWM PIN
IC OPERATIONAL STATE
Operation (PWM control)
H
M
L
More than VDD - 0.2 (V)
0.65 ~ VDD – 1.0 (V)
0 ~ 0.2 (V)
Operation (PWM/PFM automatic switching control
Shut-Down
2/17
XC9120/XC9121/XC9122
Series
■PRODUCT CLASSIFICATION
●Ordering Information
*1
XC9120①②③④⑤⑥-⑦ ): PWM Control
(
*1
XC9121①②③④⑤⑥-⑦ ): PWM/PFM Automatic Switching Control
(
*1
XC9122①②③④⑤⑥-⑦ ): PWM/PFM Externally Switching Control
(
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
: With current limiter
: No current limiter
B
D
①
Type of DC/DC Controller
② ③
④
Output Voltage
09
: FB Voltage (ex. FB Voltage=0.9V→②=0, ③=9)
Oscillation Frequency
1
: 100kHz
: SOT-25
MR
MR-G
ER
ER-G
: SOT-25 (Halogen & Antimony free)
Packages
Taping Type (*2)
⑤⑥-⑦
: USP-6C
: USP-6C (Halogen & Antimony free)
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS
compliant.
(*2)
The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local
Torex sales office or representative. (Standard orientation: ⑤R-⑦, Reverse orientation: ⑤L-⑦)
■BLOCK DIAGRAM
■ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER
VDD Pin Voltage
FB Pin Voltage
CE Pin Voltage
EXT Pin Voltage
EXT Pin Current
SYMBOL
VDD
RATINGS
-0.3 ~ 12.0
-0.3 ~ 12.0
-0.3 ~ 12.0
-0.3 ~ VDD + 0.3
±100
UNIT
V
VFB
V
VCE
V
VEXT
IEXT
V
mA
SOT-25
USP-6C
250
Power Dissipation
Pd
mW
120
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-40 ~ +85
-55 ~ +125
℃
℃
* Voltage is all ground standardized.
3/17
XC9120/XC9121/XC9122 Series
■ELECTRICAL CHARACTERISTICS
XC9120B091, XC9121B091, XC9122B091
XC9120D091, XC9121D091, XC9122D091
(fOSC=100kHz)
TYP. MAX. UNIT CIRCUIT
0.882 0.900 0.918
Ta=25℃
PARAMETER
FB Voltage
SYMBOL
VFB
CONDITIONS
MIN.
V
V
④
①
Supply Voltage Range
(*1)
VDD
1.8
-
6.0
Recommended circuit using 2SD1628,
VOUTSET VIN=VOUTSET×0.6, VDD=3.0V,
Output Voltage Setting
Range
1.5
-
-
-
-
30.0
0.9
0.8
0.7
V
V
V
V
②
③
④
③
IOUT=1.0mA
Recommended circuit using 2SD1628
VOUT=3.3V, IOUT=1.0mA
No external components,
CE connected to VDD, Voltage applied,
FB=0V
Recommended circuit using 2SD1628
VOUT=3.3V, IOUT=1.0mA
Operation Start Voltage
VST1
-
-
-
Oscillation Start Voltage
(*1)
VST2
VHLD
Operation Hold Voltage
Supply Voltage 1
Supply Voltage 2
IDD1
IDD2
ISTB
fOSC
Same as VST2, VDD=3.0V
Same as IDD1, FB=1.2V
Same as IDD1, CE=0V
Same as IDD1
-
-
25
13
-
50
30
μA
μA
μA
kHz
%
④
④
⑤
④
④
⑥
Stand-by Current
Oscillation Frequency
Maximum Duty Ratio
PFM Duty Ratio
-
1.0
115
96
85
89
24
100
93
32
MAXDTY Same as IDD1
PFMDTY No Load (XC9121B/D, XC9122B/D types)
Step input to FB
40
%
Over Current Sense
Voltage (*2)
(Pulse width: 2.0μs or more)
EXT= Low level voltage
(XC9120/9122/9122B type)
VLMT
150
250
400
mV
⑥
Efficiency (*3)
Soft-Start Time
EFFI
tSS
IOUT=10mA
-
85
-
20.0
-
%
ms
V
①
①
⑤
⑤
④
④
①
①
⑤
⑤
⑤
⑤
5.0
10.0
CE "H" Voltage
VCEH
VCEL
REXTH
REXTL
VPWMH
VPWML
ICEH
Same as IDD1
0.65
-
-
CE "L" Voltage
Same as IDD1
-
-
-
0.20
36
V
EXT "H" ON Resistance
EXT "L" ON Resistance
PWM ‘H’ Voltage (*4)
PWM ‘L’ Voltage (*4)
CE "H" Current
Same as IDD1, VEXT=VOUT-0.4V
Same as IDD1, VEXT=0.4V
24
16
-
Ω
24
Ω
IOUT=1mA
IOUT=1mA
(XC9122B/D type) VDD-0.2
-
V
(XC9122B/D type)
-
-
-
-
-
-
VDD-1.0
0.1
V
Same as IDD2, CE=VDD
Same as IDD2, CE=0V
Same as IDD2, FB=VDD
Same as IDD2, FB=0V
-
μA
μA
μA
μA
CE "L" Current
ICEL
-
-0.1
0.1
FB "H" Current
IFBH
-
FB "L" Current
IFBL
-
-0.1
Test Conditions: Unless otherwise stated, CL: ceramic, recommended MOSFET should be connected.
When VOUT is set at 15V, VIN=VDD=3.6V.
NOTE:
*1: Although the IC starts step-up operations from a VDD=0.8V, the output voltage and oscillation frequency are stabilized at VDD>1.8V.
Therefore, a VDD of more than 1.8V is recommended when VDD is supplied from VIN or other power sources.
*2: The overcurrent limit circuit of this IC is designed to monitor the ripple voltage so please select your external components carefully to
prevent VLMT being reached under low temperature conditions as well as normal operating conditions. Following current limiter circuit
operation, which in turn causes the IC’s operations to stop, the IC resumes its operation with a toggle of the CE pin or by turning the power
supply back on.
*3: EFFI: {(output voltage) x (output current)} / {(input voltage) x (input current)} x 100
*4: The XC9122 series’ CE pin combines PWM/PFM external switch pin. In the operation state, PWM control becomes effective when the CE
pin is more than VDD-0.2V. When the CE pin is less than VDD-1.0V and more than VCEH, PWM/PFM automatic switching control becomes
effective with 32% duty.
4/17
XC9120/XC9121/XC9122
Series
■TYPICAL APPLICATION CIRCUIT
SD
RSENSE
CFB
RFB2
VOUT
RFB1
1
2
3
5
4
Nch Power
MOS FET
VIN
CIN
CL
RB
CB
CE
NPM Tr
When obtaining VDD from a source other than VIN (VOUT),
please insert a by-pass capacitor CDD between the VDD
pin and the GND pin in order to provide stable operations.
Please place CL and CIN as close as to the VOUT and VDD
pins respectively and also close to the GND pin.
Strengthen the wiring sufficiently.
Insert RB and CB when using a bipolar
NPN transistor.
RSENSE should be removed and shorted when the CL
capacitor except for ceramic or low ESR capacitor is
used.
5/17
XC9120/XC9121/XC9122 Series
■OPERATIONAL EXPLANATION
The XC9120/9121/9122 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator,
phase compensation circuit, and current limiter circuit. The series ICs compare, using the error amplifier, the voltage of the
internal voltage reference source with the feedback voltage from the FB pin. Phase compensation is performed on the
resulting error amplifier output, to input a signal to the PWM comparator to determine the turn-on time during PWM operation.
The PWM comparator compares, in terms of voltage level, the signal from the error amplifier with the ramp wave from the
ramp wave circuit, and delivers the resulting output to the buffer driver circuit to cause the EXT pin to output a switching duty
cycle. This process is continuously performed to ensure stable output voltage.
<Error Amp.>
Error amplifier is designed to monitor the output voltage, comparing the feedback voltage (FB) with the reference voltage
Vref. In response to feedback of a voltage lower than the reference voltage Vref, the output voltage of the error amp.
decreases.
<OSC Generator>
The circuit generates the internal reference clock. The frequency is set to 100kHz (TYP.).
<Ramp Wave Generator>
The ramp wave generator generates a saw-tooth waveform based on outputs from the OSC Generator.
<PWM Comparator>
The PWM comparator compares outputs from the error amp. and saw-tooth waveform. When the voltage from the error
amp’s output is low, the external switch will be set to ON.
<PWM/PFN Comparator>
The circuit generates PFM pulses.
The XC9122 series can switch PWM control and PWM/PFM switching control by external signal. The PWM/PFM automatic
switching control becomes effective when the voltage of the CE pin is less than VDD-1.0V, and the control switches between
PWM and PFM automatically depending on the load. The PWM/PFM control turns into the PFM control when threshold
voltage becomes lower then voltage of error amps. The PWM control becomes effective when the CE pin voltage is more
than VDD-0.2V. Noise is easily reduced with the PWM control since the switching frequency is fixed. Because of this, the
series gives the best control suitable for your application.
<Vref with Soft Start>
The reference voltage, Vref (FB pin voltage) =0.9V, is adjusted and fixed by laser trimming (for output voltage settings, please
refer to the output voltage setting.). Soft-start circuit protects against inrush current, when the power is switched on, and
also protects against voltage overshoot. It should be noted, however, that this circuit does not protect the load capacitor (CL)
form inrush current. With the Vref voltage limited and depending on the input to the error amps, the operation maintains a
balance between the two inputs of the error amps and controls the EXT pin’s ON time so that it does not increase more than
is necessary.
<Enable Function>
The function controls the operation and shutdown of the IC. When the voltage of the CE pin is 0.2V or less, the mode will be
disable, the channel’s operations will stop and the EXT pin will be kept at a low level (the external N-ch MOSFET will be
OFF). When the IC is in a state of disable, current consumption will be no more than 1.0μA. When the CE pin’s voltage is
0.65V or more, the mode will be enabled and operations will recommence.
<Current Limiter Circuit>
The current limiter circuit of the XC9120 series is designed to monitor a ripple output voltage. Following current limiter
circuit operation, which in turn causes the IC’s operations to stop, the IC resumes its operation with a toggle of the CE pin or
by turning the power supply back on.
6/17
XC9120/XC9121/XC9122
Series
■OPERATIONAL EXPLANATION (Continued)
<Output Voltage Setting>
Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based
on the values of RFB1 and RFB2. The sum of RFB1 and RFB2 should normally be 2MΩ.
VOUT = 0.9 x (RFB1 + RFB2) / RFB2
The value of CFB1, speed-up capacitor for phase compensation, should result in fzfb = 1/(2×π×CFB×RFB1) equal to
15kHz. Adjustments are required between 5kHz to 30kHz depending on the application, value of inductance (L), and value
of load capacitance (CL).
ex.) Output Voltage Setting
VOUT
(V)
RFB1
(kΩ)
RFB2
(kΩ)
CFB
(pF)
VOUT
(V)
RFB1
(kΩ)
RFB2
(kΩ)
CFB
(pF)
30.0
25.0
20.0
18.0
390
270
470
510
12
10
22
27
27
39
22
18
15.0
10.0
7.0
470
150
150
150
30
15
22
56
22
68
68
68
3.3
<The Use of Ceramic Capacitor CL>
The circuit of the XC9120 series is organized by a specialized circuit, which reenacts negative feedback of both voltage and
current. Also by insertion of approximately 50mΩ of a low and inexpensive sense resistor as current sense, a high degree
of stability is possible even using a ceramic capacitor, a condition which used to be difficult to achieve. Compared to a
tantalum condenser, because the series can be operated in a very small capacity, it is suited to use of the ceramic capacitor,
which is cheap and small.
<External Components>
:
*When a NPN Transistor is used:
2SD1628 (SANYO)
Tr
*When a MOSFET is used
XP161A1355PR (N-Channel Power MOSFET, TOREX)
Note: As the breakdown voltage of XP161A1355PR is 20V,
take care with the output voltage. With output
voltages over 17V, use the XP161A11A1PR with a
breakdown voltage of 30V.
RB : 500Ω(Adjust with Tr’s HSE or load)
: 2200pF (Ceramic type)
CB
CB<1 / (2πx RB x fOSC x 0.7)
VST1: XP161A1355PR=1.2V (MAX.)
XP161A11A1PR=2.5V (MAX.)
XBS104S14R-G (Schottky Barrier Diode, TOREX)
:
SD
L, CL
:Please set up as follows according to an operating condition
or external components.
:
:
:
:
L
47μH (CDRH5D28, SUMIDA)
22μH (CDRH5D28, SUMIDA)
25V, 10μF (Ceramic type, TMK316BJ106KL, TAIYO YUDEN)
10V, 10μF (Ceramic type, LMK325BJ106ML, TAIYO YUDEN)
Use the formula below when step-up ratio and output current is
large.
CL
CL = (CL standard value) x (IOUT (mA) / 100mA x VOUT / VIN)
50mΩ (fOSC = 100kHz)
:
RSENSE
:
:
:
:
:
CL
L
Tantalum Type
47μH (CDRH5D28, SUMIDA)
22μH (CDRH5D28, SUMIDA)
25V, 47μF (Tantalum type, TAJ series, KYOCERA)
16V, 47μF (Tantalum type, TAJ series, KYOCERA)
Strengthen appropriately when step-up ratio and output current is
large.
CL
CL = (CL standard value) x (IOUT (mA) / 100mA x VOUT / VIN)
Not required, but short out the wire.
:
RSENSE
7/17
XC9120/XC9121/XC9122 Series
■TEST CIRCUITS
Circuit ①
Circuit ④
Circuit ②
Circuit ⑤
A
VDD
EXT
SD
RSENSE
A
L
CE
A
FB
A
OSC
C
B
A
CFB
GND
R
FB1
FB2
EXT
CE
V
DD
A
CL
Tr
V
FB
CIN
RB
VIN
GND
R
RL
Circuit ③
Circuit ⑥
Pulse voltage is applied at the FB pin
SD
RSENSE
using the test circuit ①.
L
OSC
CB
A
CFB
RFB1
EXT
CE
V
DD
FB
A
RFB1
EXT
CE
V
DD
FB
CFB
CL
0.1uF
Tr
V
CIN
RB
VIN
GND
RFB2
GND
RFB2
R
L
8/17
XC9120/XC9121/XC9122
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC9122D091 (100kHz, 15.0V)
XC9122D091 (100kHz, 20.0V)
L=47uH(CDRH5D28),SD:XBS104S14R
CL=40uF(Ceramic),Tr:161A11A1
L=47uH(CDRH5D28),SD:XBS104S14R
CL=40uF(Ceramic),Tr:161A11A1
16.0
15.5
15.0
14.5
14.0
21.0
20.5
20.0
19.5
19.0
3.2V, 3.6V, 4.2V
3.6V,4.2V
VIN=2.7V
VIN=2.7V
3.2V
0.1
1
10
100
0.1
1
10
100
Output Current: IOUT(mA)
Output Current: IOUT(mA)
(2) Efficiency vs. Output Current
XC9122D091 (100kHz, 15.0V)
XC9122D091 (100kHz, 20.0V)
L=47uH(CDRH5D28),SD:XBS104S14R
CL=40uF(Ceramic),Tr:161A11A1
L=47uH(CDRH5D28),SD:XBS104S14R
CL=40uF(Ceramic),Tr:161A11A1
100
80
60
40
20
0
100
80
60
40
20
0
4.2V
4.2V
PWM/PFM
PWM/PFM
VIN=2.7V
3.2V
VIN=2.7V
3.2V
3.6V
3.6V
PWM
PWM
0.1
1
10
100
0.1
1
10
100
Output Current: IOUT(mA)
Output Current: IOUT(mA)
(4) Supply Current 1 vs. Supply Voltage
(3) Output Voltage vs. Ambient Temperature
XC9122D091 (100kHz)
XC9122D091 (100kHz)
L=22uH(CDRH5D28),SD:XBS104S14R
CL=20uF(Ceramic),Tr:XP161A1355PR
16.0
15.5
15.0
14.5
14.0
100
80
60
Ta=25oC
85oC
40
-40oC
20
VIN=3.6V
IOUT=10mA
0
-40 -20
0
20 40 60 80 100
1
2
3
4
5
6
Ambient Temperature :Ta(oC)
Pow er Supply VDD(V)
9/17
XC9120/XC9121/XC9122 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Stand-by Current vs. Supply Voltage
(5) Supply Current 2 vs. Supply Voltage
XC9122D091 (100kHz)
XC9122D091 (100kHz)
50
40
2.0
1.5
1.0
0.5
30
Ta=25oC
85oC
20
85oC
10
0
-40oC
Ta=25,-40oC
0.0
1
2
3
4
5
6
1
2
3
4
5
6
Supply Voltage: VDD (V)
Supply Voltage: VDD (V)
(7) Oscillation Frequency vs. Supply Voltage
XC9122D091 (100kHz)
(8) Maximum Duty Ratio vs. Supply Voltage
XC9122D091 (100kHz)
200
100
Ta=25oC-40oC85oC
Ta=25oC
150
90
80
70
85oC
100
-40oC
50
0
1
2
3
4
5
6
1
2
3
4
5
6
Supply Voltage: VDD (V)
Supply Voltage: VDD (V)
(10) Soft-Start Time vs. Supply Voltage
XC9122D091 (100kHz)
(9) Over Current Sense Voltage vs. Supply Voltage
XC9122B091 (100kHz)
350
20
85oC
-40oC
300
15
10
5
Ta=25oC
Ta=25oC
250
-40oC
85oC
200
150
0
1
2
3
4
5
6
1
2
3
4
5
6
D
Supply Voltage: V D (V)
D
Supply Voltage: VD (V)
10/17
XC9120/XC9121/XC9122
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(12) CE "L" Voltage vs. Supply Voltage
(11) CE "H" Voltage vs. Supply Voltage
XC9122D091 (100kHz)
XC9122D091 (100kHz)
1.0
1.0
0.8
0.8
Ta=25oC
Ta=25oC
0.6
0.6
85oC
85oC
0.4
0.4
-40oC
-40oC
0.2
0.0
0.2
0.0
1
2
3
4
5
6
1
2
3
4
5
6
Supply Voltage: VDD (V)
Supply Voltage: VDD (V)
(14) EXT L ON Resistance vs. Supply Voltage
(13) EXT H ON Resistance vs. Supply Voltage
XC9122D091 (100kHz)
XC9122D091 (100kHz)
50
50
40
40
Ta=25oC
30
30
Ta=25oC
85oC
20
20
85oC
-40oC
10
10
-40oC
0
0
1
2
3
4
5
6
1
2
3
4
5
6
Supply Voltage: VDD (V)
Supply Voltage: VDD (V)
(16) Operation Hold Voltage vs. Ambient Temperature
(15) Operation Start Voltage vs. Ambient Temperature
XC9122D091 (100kHz)
XC9122D091 (100kHz)
L=22uH(CDRH5D28),SD:XBS104S14R
L=22uH(CDRH5D28),SD:XBS104S14R
CL=20uF(Ceramic),Tr:2SD1628
CL=20uF(Ceramic),Tr:2SD1628
1.2
0.8
1.0
0.8
0.6
0.4
0.2
0.0
0.6
0.4
0.2
0.0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
Ambient Temperature :Ta(oC)
Ambient Temperature :Ta(oC)
11/17
XC9120/XC9121/XC9122 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(18) PFM Duty Ratio vs. Supply Voltage
XC9122D091 (100kHz)
(17) Oscillation Start Voltage vs. Ambient Temperature
XC9122D091 (100kHz)
40
35
30
0.8
0.6
0.4
0.2
0.0
Ta=85oC
25oC
-40oC
25
20
15
10
-40 -20
0
20 40 60 80 100
1
2
3
4
5
6
Ambient Temperature :Ta(oC)
Supply Voltage: VDD (V)
(19) PWM ‘H’ Voltage vs. Supply Voltage
(20) PWM ‘L’ Voltage vs. Supply Voltage
XC9122D091 (100kHz)
XC9122D091 (100kHz)
VDD
VDD
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
Ta=25oC
Ta=25oC
85oC
85oC
-40oC
-40oC
1
2
3
4
5
6
1
2
3
4
5
6
Supply Voltage: VDD (V)
Supply Voltage: VDD (V)
12/17
XC9120/XC9121/XC9122
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(21) Load Transient Response
VOUT=15V,
VOUT=15V,
VIN=3.6V, IOUT=100uA 10mA
→
VIN=3.6V, IOUT=10mA 100uA
→
VOUT
VOUT
1ch
2ch
1ch
2ch
IOUT
10mA
10mA
IOUT
100uA
100uA
400usec/div.
4.0msec/div.
1ch: VOUT, 100mV/div.
2ch: IOUT, 10mA/div.
1ch: VOUT, 100mV/div.
2ch: IOUT, 10mA/div.
13/17
XC9120/XC9121/XC9122 Series
■PACKAGING INFORMATION
●SOT-25
●USP-6C
Note: The side of pins are not gilded, but nickel is used.
14/17
XC9120/XC9121/XC9122
Series
■PACKAGING INFORMATION (Continued)
●USP-6C Reference Pattern Layout
●USP-6C Reference Metal Mask Design
15/17
XC9120/XC9121/XC9122 Series
■MARKING RULE
●SOT-25
①Represents product series
MARK
PRODUCT SERIES
XC9120x091Mx
XC9121x091Mx
XC9122x091Mx
M
N
P
②Represents current limit function
MARK
FUNCTION
PRODUCT SERIES
B
D
With Current Limit
XC9120/9121/9122B091Mx
XC9120/9121/9122D091Mx
Without Current Limit
③Represents oscillation frequency
MARK
1
OSCILLATION FREQUENCY
100kHz
PRODUCT SERIES
XC9120/9121/9122x091Mx
④Represents production lot number
0 to 9, A to Z, and inverted 0 to 9, A to Z repeated.
(G, I, J, O, Q, W excepted.)
●USP-6C
①Represents product series
MARK
PRODUCT SERIES
XC9120x091Ex
XC9121x091Ex
XC9122x091Ex
E
F
H
②Represents current limit function
MARK
FUNCTION
PRODUCT SERIES
B
D
With current limit
Without current limit
XC9120/9121/9122B091Ex
XC9120/9121/9122D091Ex
③④Represents FB voltage
MARK
FB VOLTAGE
09
PRODUCT SERIES
③
④
0
9
XC9120/9121/9122x091Ex
⑤Represents Oscillation Frequency
MARK
1
OSCILLATION FREQUENCY
100kHz
PRODUCT SERIES
XC9120/9121/9122x091Ex
④Represents production lot number
0 to 9, A to Z repeated. (G, I, J, O, Q, W excepted.)
* No inversion is used.
16/17
XC9120/XC9121/XC9122
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.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
17/17
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