XC9131 Datasheet, PDF (1/28 Pages) Torex Semiconductor – 1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters

XC9131 Series
ETR0412-010
1A Driver Transistor Built-In, Multi Functional Step-Up DC/DC Converters
˙GENERAL DESCRIPTION
ˑGreenOperation Compatible
XC9131 series are synchronous step-up DC/DC converters
with a 0.2Њ(TYP.) N-channel driver transistor and a 0.2Њ(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
33Њload 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 series has 0.5V (±0.01V) reference voltage integrated and being able to set an output voltage with external components.
˙APPLICATIONS
˔Digital audio equipments
˔Digital still cameras / Camcorders
˔Computer mouses

˔Multi-function power supplies
˙ FEATURES
Input Voltage Range
Output Voltage Range
Oscillation Frequency
Input Current
Output Current
Control Mode Selection
Load Transient Response
Protection Circuits
: 0.65V~5.5V
: 1.8V~5.0V
(V_FB=0.50V±0.01V Set up with external
components)
: 1.2MHz (±15%)
: 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=1mA→200mA
: Thermal shutdown
Over-current limit
Functions
: Soft-start
Load Disconnection Function
C_L Auto Discharge Function
Flag-out Function
Output Capacitor
Operating Ambient Temperature
Package
Environmentally Friendly
: Ceramic Capacitor
: -40ˆ~+85ˆ
: USP-10B
: EU RoHS Compliant, Pb Free
˙TYPICAL APPLICATION CIRCUIT
˔XC9131 Series (FB)
˙TYPICAL PERFORMANCE
CHARACTERISTICS

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