XC8102Series
ETR2502-006a
Load Switch with Low On-Resistance
■GENERAL 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.
■FEATURES
On Resistance
: 0.28Ω@ VIN=6.0V (TYP.)
: 0.31Ω@ VIN=4.0V (TYP.)
: 0.35Ω@ VIN=2.9V (TYP.)
: 0.52Ω@ VIN=1.8V (TYP.)
: 0.60Ω@ VIN=1.5V (TYP.)
: 0.80Ω@ VIN=1.2V (TYP.)
: 1.2V~6.0V
■APPLICATIONS
● Mobile phones, Smart phones
● Digital still cameras, Digital video cameras
● Portable game consoles
Input Voltage Range
Power Consumption
: 3.0μA@ VIN=1.2V
: 3.6μA@ VIN=2.9V
● Portable equipment
: 4.0μA@ VIN=6.0V
Stand-by Current
Protection Circuit
: 0.1μA
:Current limit(Output Current)
480mA (TYP.) (1.8≦VIN≦6.0V)
: Short-circuit Protection,
Short current= 30mA (TYP.)
: High Active Enable
ON/OFF Function
High-Speed Discharge Function
Operating Temperature Range : -40℃~+85℃
Packages
: USP-4,SSOT-24, SOT-25
USPN-4
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
■TYPICAL APPLICATION CIRCUIT
CHARACTERISTICS
DC/DC OUT
2.1V
●On Resistance vs. Input Voltage
VIN
VOUT
VIN
CE
IN
IN
IN
VOUT
XC8102
VSS
CPU
Step Down
XC8102AA01M/XC8102AA01G
ON/OFF
Control
DC/DC
XC9235
Li-ion
3.6V
VIN=CE
IOUT=50mA
CIN
CL
CIN=None,CL=None
1.0
VIN
CE
VOUT
CPU
XC8102
VSS
0.8
0.6
0.4
0.2
0.0
Ta=85
℃
25
℃
ON/OFF
Control
ꢀ
-40
ꢀꢀ
℃
CIN
CL
VIN
CE
VOUT
XC8102
VSS
CPU
ON/OFF
Control
CIN
CL
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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