US202
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VIN
7
V
Chip Enable
VEN
-0.3~7
V
Power Dissipation (TA = 25°C)
PD
0.25
W
Junction Temperature
TJ
-20~100
°C
Storage Temperature
TSTG
-65~150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(VIN = 5V, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Input Voltage Range
VIN
Output NMOSFET RDS(ON)
RDS(ON) IL = 1A
Supply Current
VIN= 3V
VIN= 5V
Output Turn-On Rising Time
TR RL= 10Ω, 90% Settling
Current Limit Threshold
ILIMIT
Short-Circuit Fold Back Current
IOS
VOUT = 0V, measured prior to
thermal shutdown
CE Input High Threshold
VIH
CE Input Low Threshold
VIL
Shutdown Supply Current
IOFF CE = “0”
Output Leakage Current
II(LEAK) CE = “0”, VOUT = 0V
VIN Under Voltage Lockout
UVLO
VIN Under Voltage Hysteresis
Thermal Limit
TSD
Thermal Limit Hysteresis
∆TSD
MIN TYP MAX UNIT
2.2
6V
85 100 mΩ
19 40
µA
23 45
400
µS
1.1 1.5 2 A
1.0
A
2.0
V
0.8 V
0.1 1 µA
0.5 10 µA
1.3 1.8
V
100
mV
130
°C
20
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-445.c