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XC8102_1 Datasheet, PDF (1/19 Pages) Torex Semiconductor – Load Switch with Low On-Resistance | |||
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XC8102 Series
Load Switch with Low On-Resistance
ETR2502-006a
ËGENERAL DESCRIPTION
The XC8102 series is a low ON resistance load switch IC with ON/OFF control and output current protection which integrates
a P-channel MOSFET.
By connecting the XC8102 to the output pin of a step-down DC/DC converter, the CE pin controls ON/OFF for each
distribution switch to deliver power per requirements and maximize total power efficiency. As a result, the XC8102 helps to
extend battery life and product operation time.
The series contains a current limit and protection circuit so these are not required externally unlike discrete circuit solutions
where MOSFETs and resistors are used.
When a low signal is input to the CE pin, the series enters stand-by mode. Even where a load capacitor is connected to the
output pin during stand-by, the electric charge stored at the load capacitor is discharged through the internal switch. As a
result, the VOUT pin voltage falls quickly to the VSS level.
The series contains over current protection with fold-back current circuitry which operates as over current protection and
short circuit protection for the output pin.
ËAPPLICATIONS
Ë Mobile phones, Smart phones
Ë Digital still cameras, Digital video cameras
Ë Portable game consoles
Ë Portable equipment
ËFEATURES
On Resistance
Input Voltage Range
Power Consumption
Stand-by Current
Protection Circuit
: 0.28â¦@ VIN=6.0V (TYP.)
: 0.31â¦@ VIN=4.0V (TYP.)
: 0.35â¦@ VIN=2.9V (TYP.)
: 0.52â¦@ VIN=1.8V (TYP.)
: 0.60â¦@ VIN=1.5V (TYP.)
: 0.80â¦@ VIN=1.2V (TYP.)
: 1.2VÊ6.0V
: 3.0ÐA@ VIN=1.2V
: 3.6ÐA@ VIN=2.9V
: 4.0ÐA@ VIN=6.0V
: 0.1ÐA
:Current limit(Output Current)
480mA (TYP.) (1.8ʽVINʽ6.0V)
: Short-circuit Protection,
Short current= 30mA (TYP.)
ON/OFF Function
: High Active Enable
High-Speed Discharge Function
Operating Temperature Range : -40ËÊ+85Ëç
Packages
: USP-4,SSOT-24, SOT-25
USPN-4
Environmentally Friendly
: EU RoHS Compliant, Pb Free
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ËTYPICAL APPLICATION CIRCUIT ËçTYPICAL PERFORMANCE
CHARACTERISTICS
DC/DC OUT
2.1V
VIN
VOUT
VIN
VOUT
IN
Step Down
Li-ion
DC/DC
3.6V
XC9235
XC8102
CE
ON/OFF
VSS
CIN Control
CL
CPU
VIN
VOUT
XC8102
CE
ON/OFF
VSS
Control
CIN
CL
IN
CPU
ËOn Resistance vs. Input Voltage
XC8102AA01M/XC8102AA01G
VIN=CE
IOUT=50mA
CIN=None,CL=None
1.0
0.8
Ta=85â
ã 25â
0.6
ãã -40â
0.4
ON/OFF
CIN Control
VIN
VOUT
XC8102
CE
VSS
CL
IN
CPU
0.2
0.0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage : VIN (V)
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