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XC9131 Datasheet Preview

XC9131 Datasheet

Multi Functional Step-Up DC/DC Converter

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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 converterswith 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
(VFB=0.50V±0.01V Set up with external
components)
: 1.2MHz (±15%)
: 1.0A
: 500mA @ VOUT=3.3V, VIN=1.8V(TYP.)
: PWM or Auto PWM/PFM
:100mV @ VOUT=3.3V,
VIN=1.8V, IOUT=1mA200mA
: Thermal shutdown
Over-current limit
Functions
: Soft-start
Load Disconnection Function
CL 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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Torex

XC9131 Datasheet Preview

XC9131 Datasheet

Multi Functional Step-Up DC/DC Converter

No Preview Available !

XC9131 Series
˙PIN CONFIGURATION
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˙PIN ASSIGNMENT
PIN NUMBER PIN NAME
FUNCTIONS
1
BAT
Power Input
2
Lx
Switching
3
CDD
Bypass Capacitor Connection
4
MODE
Mode Switching
5
FO
Flag Output
6
EN
Enable
7
FB
Output Voltage Monitoring
8
AGND
Analog Ground
9
PGND
Power Ground
10
VOUT
Output Voltage
* The dissipation pad for the USP-10B 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 AGND (No.8) or PGND (No.9) pin.
*Please short the GND pins (pins 8 and 9).
˙FUNCTION CHART
 1. EN Pin Function
EN PIN
FUNCTIONS
H
Operation
L
Stop
* Do not leave the EN pin open.




 2. MODE Pin Function
MODE PIN
FUNCTIONS
H
PWM
L
PWM/PFM automatic control
* Do not leave the MODE pin open.
2/28



Part Number XC9131
Description Multi Functional Step-Up DC/DC Converter
Maker Torex
Total Page 3 Pages
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XC9131 Datasheet PDF





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