XC9135 Datasheet, PDF (1/35 Pages) Torex Semiconductor – 1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters

XC9135/XC9136 Series
ETR0416-002
1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters
ˑGreenOperation Compatible
˙GENERAL DESCRIPTION

XC9135/XC9136 series are synchronous step-up DC/DC converters
with a 0.2Њ(TYP.) N-channel driver transistor and a 0.2
Њ(TYP.) synchronous P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.0A by
reducing ON resistance of the built-in transistors.

The series are able to start operation under the condition which has 0.9V input voltage to generate 3.3V output voltage with a 33
Њload resistor, suitable for mobile equipment using only one Alkaline battery or one Nickel metal hydride battery.
During the operation of a shutdown, the load disconnection function enables to cut the current conduction path from the input to
the output.
The output voltage is selectable in 0.1V increments within 1.8~5.0V (±2.0% accuracy).
The UVLO function of the XC9135 series is capable to reduce leaking potassium hydroxide by stopping IC operation while
battery voltage is declining. The release voltages of UVLO are 0.85V (±6.0% accuracy) and 1.6V (±3.0% accuracy), and
selectable voltages range of 0.9V~3.0V.
˙APPLICATIONS
˔Digital audio equipments
˔Digital still cameras / Camcorders
˔Computer mouses

˔Multi-function power supplies




˙FEATURES
Input Voltage Range
Fixed Output Voltages
Oscillation Frequency
Input Current
Output Current
Control Mode Selection
Load Transient Response
Protection Circuits
Functions
Output Capacitor
Operating Ambient Temperature
Package
Environmentally Friendly
: 0.65Vʙ5.5V
: 1.8Vʙ5.0Vʢ0.1V incrementsʣ
: 1.2MHz(ʶ15%ʣ
: 1.0A
: 500mA @ V_OUT=3.3V, V_IN=1.8V(TYP.)
: PWM or Auto PWM/PFM
: 100mV V_OUT=3.3V,V_IN=1.8V,I_OUT=1mAË 200mA
: Thermal shutdown
Over-current limit
Integral latch method
: Soft-start
Load Disconnection Function
C_L Auto Discharge Function
Flag-out Function
UVLO
: Ceramic Capacitor
: ˆ
ʙ
ˆ

: USP-10B
: EU RoHS Compliant, Pb Free
˙TYPICAL APPLICATION CIRCUIT
^{˙TYPICAL PERFORMANCE}
CHARACTERISTICS
˔Efficiency vs. Output Current

˔XC9135 Series

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XC9135C32CDR-G (V_OUT=3.2V)
L=4.7ЖH (VLF3014ST-4R7M1R1), C_L=22Ж'
LMK316ABJ226ML
C_IN=10ЖF (JMK212ABJ106KG), C_DD=0.47ЖF (TMK107BJ474KA)
f_OSC=1.2MHz
100
80
60
PWM/PFM
40
2.5V
VIN=1.8V
3.0V
20
0
0.1
PWM
1
10
100
Output Current : IOUT (mA)
1000
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