XC9135/XC9136 series is Discontinued.
XC9135/XC9136 Series
ETR04016-003
1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters
☆GreenOperation Compatible
■GENERAL DESCRIPTION
XC9135/XC9136 series are synchronous step-up DC/DC converters with a 0.2Ω(TYP.) N-channel driver transistor and a 0.2
Ω(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
Ωload 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
■FEATURES
Input Voltage Range
Fixed Output Voltages
Oscillation Frequency
Input Current
: 0.65V~5.5V
: 1.8V~5.0V(0.1V increments)
: 1.2MHz(±15%)
: 1.0A
●Multi-function power supplies
Output Current
: 500mA @ VOUT=3.3V, VIN=1.8V(TYP.)
: PWM or Auto PWM/PFM
Control Mode Selection
Load Transient Response
Protection Circuits
:
100mV VOUT=3.3V,VIN=1.8V,IOUT=1mA→200mA
: Thermal shutdown
Over-current limit
Integral latch method
: Soft-start
Functions
Load Disconnection Function
CL Auto Discharge Function
Flag-out Function
UVLO
Output Capacitor
: Ceramic Capacitor
Operating Ambient Temperature : -40℃ ~ +85℃
Package
: USP-10B
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Efficiency vs. Output Current
■TYPICAL APPLICATION CIRCUIT
XC9135C32CDR-G (VOUT=3.2V)
L=4.7μ H (VLF3014ST-4R7M1R1), CL=22μ F (LMK316ABJ226ML)
CIN=10μ F (JMK212ABJ106KG), CDD=0.47μ F (TMK107BJ474KA)
fOSC=1.2MHz
●XC9135 Series
CIN
VOUT
BAT
Lx
VOUT
100
80
CL
PGND
L
VIN
AGND
CDD
MODE
FO
MODE
FO
60
CDF
EN
CDD
3.0V
EN
2.5V
VIN=1.8V
PWM/PFM
Cdf
40
20
0
PWM
0.1
1
10
100
1000
Output Current : IOUT (mA)
1/35