L1138_11 Datasheet, PDF (4/7 Pages) Unisonic Technologies – HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH HIGH RIPPLE-REJECTION

L1138
Preliminary
CMOS IC
„ ABSOLUTE MAXIMUM RATING(T_a = 25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
V_IN
V_SS -0.3~V_SS+7
V
V_ON/OFF
V_SS -0.3~V_IN+0.3
V
Output Voltage
V_OUT
V_SS -0.3~V_IN+0.3
V
Power Dissipation
P_D
Internally limited
mW
Operating Temperature
T_OPR
-40~+85
°C
Storage Temperature
T_STG
-40~+125
°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 (T_a = 25°C, V_IN=V_OUT+1V, unless otherwise specified)
Parameter
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Input Voltage
V_IN
6.5 V
Output Voltage (Note 1)
Line Regulation
V_OUT(E)
ΔV_OUT1
ΔV_IN × V_OUT
V_IN =V_OUT(S)+1.0V,I_OUT =100mA
V_OUT(S) + 0.5V ≤V_IN ≤6.5V,
I_OUT = 100mA
-1%
+1% V
0.05 0.3 %/V
Load Regulation
Output Current (Note 2)
ΔV_OUT2
I_OUT
V_IN = V_OUT(S) + 1.0 V,
1.0mA ≤I_OUT ≤300mA
V_IN ≤V_OUT(S)+1.0 V
30 100 mV
800
mA
Operation
Current Consumption
I_SS1
V_IN = V_OUT(S) +1.0 V,
ON/OFF pin = ON, no load
80 160 µA
During
Shutdown
I_SS2
V_IN = V_OUT(S) + 1.0 V,
ON/OFF pin = OFF, no load
0.1 1.0 µA
Short-Circuit Current
I_SHORT
V_IN = V_OUT(S) + 1.0 V,
ON/OFF pin = ON, V_OUT = 0 V
350
mA
V_OUT(S) =1.2V
0.8 1.0
Dropout Voltage (Note 3)
V_D
I_OUT = 300mA
V_OUT(S) =2.5V
V_OUT(S) =2.8V
0.15 0.22 _V
0.15 0.22
V_OUT(S) =3.5V
0.12 0.18
Temperature Coefficient of
Output Voltage
T_CV_O
V_IN = V_OUT(S) +1.0V,
I_OUT = 10mA, -40°C≤ T_a ≤85°C
±150
ppm/°
C
Power Supply Rejection
PSRR
V_IN= V_OUT(S)+1.0
f = 1.0kHz,
V
1.2
V
≤V_OUT(S)≤
3.0
V
70
dB
I_OUT = 100 mA
ΔV_rip = 0.5V_rms
3.1 V ≤V_OUT(S)≤ 5.5 V
65
Shutdown Pin Input
Voltage
High
Low
V_SH
V_IN = V_OUT(S) +1.0V
V_SL
V_IN = V_OUT(S) + 1.0V
1.5
V
0.3 V
Shutdown Pin Input
Current
Thermal Shutdown
Temperature
High
Low
Detection
Release
I_SH
V_IN = 6.5V, V_ON/OFF = 6.5V
I_SL
V_IN = 6.5V, V_ON/OFF = 0V
T_SD
Junction temperature
T_SR
Junction temperature
-0.1
0.1 µA
-0.1
0.1 µA
150
°C
120
°C
Notes: 1.V_OUT(S): Specified output voltage.
V_OUT(E): Actual output voltage at the fixed load
When fixing( I_OUT= 100mA) and inputting V_OUT(S) + 1.0 V
2.This output current means the one at which the output voltage becomes 98% of V_OUT(E) after gradually
increasing the output current.
3.The dropant voltage is detmed as V_IN - V_OUT, which is measured when V_OUT is V_OUT(normal) × 98%
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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