XC8102 Series
ETR2502-007
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 V
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.
■APPLICATIONS
● Mobile phones, Smart phones
● Digital still cameras, Digital video cameras
● Portable game consoles
● Portable equipment
pin voltage falls quickly to the V
OUT
■TYPICAL APPLICATION CIRCUIT
Li-ion
VIN VOUT
Step Down
3.6V
DC/DC
XC9235
DC/DC OUT
2.1V
VIN
XC8102
CE
VSS
ON/OFF
Control
CIN
VIN
XC8102
CE
VSS
ON/OFF
Control
CIN
VIN
XC8102
CE
VSS
ON/OFF
Control
CIN
VOUT
VOUT
VOUT
SS
CL
CL
CL
level.
■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.)
Input Voltage Range : 1.2V～6.0V
Power Consumption : 3.0μA@ V
=1.2V
IN
: 3.6μA@ VIN=2.9V
: 4.0μA@ VIN=6.0V
Stand-by Current : 0.1μA
Protection Circuit :Current limit(Output Current)
480mA (TYP.) (1.8≦VIN≦6.0V)
: Short-circuit Protection,
Short current= 30mA (TYP.)
ON/OFF Function : High Active Enable
High-Speed Discharge Function
Operating Temperature Range : -40℃～+85℃
Packages
Environmentally Friendly
: USP-4,SSOT-24, SOT-25
USPN-4
: EU RoHS Compliant, Pb Free
■ TYPICAL PERFORMANCE
CHARACTERISTICS
IN
CPU
IN
CPU
IN
CPU
●On Resistance vs. Input Voltage
XC8102AA01M/XC8102AA01G
1.0
0.8
0.6
0.4
0.2
ON Resistance : RON (Ω
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)
V IN=CE
IOUT= 50 mA
CIN=Non e, CL=No ne
Ta=8 5
25
-40
℃
℃
℃
1/20
XC8102 Series
■PIN CONFIGURATION
*The heat dissipation pad of the USP-4 package is recommended to solder as shown in the
recommended mount pattern and metal mask pattern for mounting strength. The heat
dissipation pad should be electrically opened or connected to the V
■PIN ASSIGNMENT
■PRODUCT CLASSIFICATION
●Ordering Information
USP-4 SOT-25 SSOT-24 USPN-4
4 1 4 4 VIN Power Input
1 5 3 1 V
2 2 2 2 VSS Ground
3 3 1 3 CE ON/OFF Control
－
XC8102①②③④⑤⑥-⑦
PIN NUMBER
4
(*1)
－
- NC No Connection
(No. 2) pin.
SS
PIN NAME FUNCTIONS
Output
OUT
DESIGNATOR ITEM SYMBOL DESCRIPTION
①
②
③④
⑤⑥-⑦
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
(*1)
CE pin logic
C
Discharge Function A
L
Internal Standard Number 01 Fixed
Packages
(Order Unit)
A CE High active
Output capacitor (C
GR-G
MR-G
NR-G
7R-G
integrated
USP-4 (3,000/Reel)
SOT-25 (3,000/Reel)
SSOT-24 (3,000/Reel)
USPN-4
(5,000/Reel)
2/20
) auto-discharge function
L
A
■FUNCTION CHART
■BLOCK DIAGRAM
●XC8102AA Series
BSOLUTE MAXIMUM RATINGS
■
* Please make sure that I
SERIES CE
XC8102AA01
VIN
GATE
CONTROL
CE
ON/OFF
Control
* Diodes inside the circuit are an ESD protection diode and a parasitic diode.
High ON
Low OFF
Current
Limit
each
circuit
XC8102AAシリーズ
PAR AMETE R SYMBOL RATINGS UNITS
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-4 120
Power Dissipation
SSOT-24 150
SOT-25 250
USPN-4
Operating Temperature Range
Storage Temperature Range
is less than Pd/ (VIN-V
OUT
IC OPERATIONAL STATUS
ON/OFF
Rdischg
CE/
V
IN
I
850* mA
OUT
V
OUT
VCE
Pd
Topr
Ts tg
)
OUT
VOUT
VSS
V
SS
V
SS
V
SS
-40～+85
-55～+125
-0.3～+6.5
-0.3～VIN
-0.3～+6.5
100
V
V
V
mW
o
C
o
C
XC8102
Series
3/20
XC8102 Series
■ELECTRICAL CHARACTERISTICS
●XC8102AA Series
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUITS
Input Voltage V
On Resistance
(SSOT-24/USPN-4)
On Resistance
(SOT-25/USP-4)
Supply Current IDD
Stand-by Current I
Switch Leakage Current
Current Limit I
Short Circuit Current I
CE High Level Voltage
CE Low Level Voltage
CE High Level Current
CE Low Level Current
CL Auto-Discharge
Resistance
Turn On Time
Turn Off Time
(*1)
(*2)
NOTE:
*1: Time to reach 90% of V
*2: Time to fall to 10% of V
1.2 - 6.0 V -
IN
V
=6.0V, VCE=VIN - 0.28 0.425
IN
V
=4.0V, VCE=VIN - 0.31 0.475
IN
VIN =2.9V, VCE=VIN - 0.35 0.475
R
ON
VIN =1.8V, VCE=VIN - 0.52 0.625
VIN =1.5V, VCE=VIN - 0.60 0.80
=1.2V, VCE=VIN - 0.80 1.60
V
IN
V
=6.0V, VCE=VIN - 0.35 0.475
IN
V
=4.0V, VCE=VIN - 0.38 0.525
IN
VIN =2.9V, VCE=VIN - 0.43 0.525
R
ON
VIN =1.8V, VCE=VIN - 0.59 0.675
VIN =1.5V, VCE=VIN - 0.67 0.85
=1.2V, VCE=VIN - 0.87 1.65
V
IN
VIN =6.0V, VCE=VIN, V
VIN =4.0V, VCE=VIN, V
VIN =2.9V, VCE=VIN, V
VIN =1.8V, VCE=VIN, V
VIN =1.5V, VCE=VIN, V
=1.2V, VCE=VIN, V
V
IN
VIN =6.0V, VCE=VSS, V
STBY
VIN =6.0V, VCE=VSS, V
I
LEAK
VIN≧2.9V, V
LIM
1.5V≦VIN＜1.8V, V
1.8V≦VIN＜2.9V, V
1.2V≦V
VCE=VIN, V
SHORT
V
1.1 - 6.0
CEH
V
- - 0.3
CEL
I
VCE=VIN -0.1 - 0.1
CEH
I
VCE=VSS -0.1 - 0.1
CEL
VIN=4.0V, V
R
DCHG
t
DLY(ON)
t
DLY(OFF)
after VCE entering the V
OUT
after VCE entering the V
OUT
VIN =4.0V, VCE=0.3V→1.2V, RL=80Ω, without CIN, CL
VIN =4.0V, VCE=1.2V→0.3V, RL=80Ω, without CIN, CL
Ω ①
Ω ①
=OPEN - 4.0 7.0
OUT
=OPEN - 3.8 6.5
OUT
=OPEN - 3.6 6.3
OUT
=OPEN - 3.4 5.7
OUT
=OPEN - 3.2 5.5
OUT
=OPEN - 3.0 4.9
OUT
=OPEN - 0.01 0.10 μA ②
OUT
=0V - 0.01 0.10
OUT
= VIN -0.8V 400 480 -
OUT
= VIN -0.6V 400 480 -
OUT
=1.2V 200 - -
OUT
＜1.5V, V
IN
=0V - 30 75 mA ①
OUT
=1.0V 90 - -
OUT
μA ②
μA
mA ①
V
V ③
μA ③
μA ③
=4.0V, VCE=VSS 380 480 570 Ω ④
OUT
8.5
threshold.
CEH
threshold.
CEL
-
3.0
-
18 μs ⑤
7.5 μs ⑤
Ta =2 5 ℃
②
③
4/20
■TEST CIRCUITS
XC8102
Series
Circuit ①
V
VIN VOUT
CE
A
IOUT
Ishort
V
VSS
Circuit ②
Circuit ③
5/20
XC8102 Series
■TEST CIRCUITS (Continued)
Circuit ④
The measurement point of wave form
Circuit ⑤
6/20
The measurement point of wave form
RL
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