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XC8102 Series
Load Switch with Low On-Resistance (Current Limit 400mA)
Step Down
DC/DC
XC9235
Li-ion
DC/DC OUT
3.6V
2.1V
XC8102
VIN
CE
VSS
VOUT
XC8102
VIN
CE
VSS
VOUT
XC8102
VIN
CE
VSS
VOUT
ON/OFF
Control
ON/OFF
Control
CL
CL
CL
ON/OFF
Control
CIN
CIN
CIN
CPU
CPU
CPU
IN
IN
IN
VIN VOUT
■APPLICATIONS
● Smart phones / Mobile phones
● Digital still cameras / Camcorders
● Portable game consoles
■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 V
OUT
pin voltage falls quickly to the V
SS
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.
■TYPICAL APPLICATION CIRCUIT
■ TYPICAL PERFORMANCE
CHARACTERISTICS
ETR2502-010
■FEATURES
On Resistance : 0.28Ω@ V
IN
=6.0V (TYP.)
0.31Ω@ V
IN
=4.0V (TYP.)
0.35Ω@ V
IN
=2.9V (TYP.)
0.52Ω@ V
IN
=1.8V (TYP.)
0.60Ω@ V
IN
=1.5V (TYP.)
0.80Ω@ V
IN
=1.2V (TYP.)
Input Voltage Range : 1.2V～6.0V
Power Consumption : 3.0μA@ V
IN
=1.2V
3.6μA@ V
IN
=2.9V
4.0μA@ V
IN
=6.0V
Stand-by Current : 0.1μA
Protection Circuit : Current limit(Output Current)
400mA (1.8≦V
IN
≦6.0V)
Short-circuit Protection,
Short current= 30mA (TYP.)
ON/OFF Function : Active High Enable
High-Speed Discharge Function
Operating Ambient Temperature : -40℃～+85℃
Packages
: USP-4,SSOT-24,
SOT-25, USPN-4,USP-6B06
Environmentally Friendly
: EU RoHS Compliant, Pb Free
XC8102AA01M/XC8102AA01G
0.0
0.2
0.4
0.6
0.8
1.0
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)
ON Resistance : RON (Ω
V IN=CE
IOUT=50 mA
CIN=None, CL=None
Ta=85
℃
25
℃
-40
℃
●On Resistance vs. Input Voltage
