1A Positive Voltage Regulator
LM7833/LM7847
For LM7847 (VIN=9.7V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7847
Symbol
Description
Unit
Test Conditions
Min.
Typ.
Max.
4.512 4.70 4.888
V
IOUT=5mA-1.0A
7.2V≤VIN≤19.7V, IOUT=5mA-1.0A
IOUT=5mA-1.0A
VOUT
Output Voltage
4.465
-
-
4.935
47
V
-
-
-
-
-
-
-
-
mV
mV
mV
mV
mA
mA
mA
µV
∆VOUT
Load Regulation
-
24
IOUT=0.25A-0.75A
-
47
7.2V≤VIN≤19.7V
∆VOUT
IQ
Line Regulation
-
47
7.2V≤VIN≤19.7V, IOUT=1.0A
IOUT≦1.0A
Quiescent Current
-
8.0
1.0
0.5
-
-
7.2V≤VIN≤19.7V
∆IQ
Quiescent Current Change
-
IOUT=5mA-1.0A
eN
Output Noise Voltage
40
10Hz≤f≤100KHz
Temperature coefficient of
VOUT
∆VO/∆T
-
-0.6
-
mV/℃
IOUT=5mA
RR
IPEAK
ISC
Ripple Rejection
62
-
80
1.8
250
2.0
-
-
-
-
dB
A
7.7V≤VIN≤17.7V, f=120Hz
Peak Output Current
Short-Circuit Current
Dropout Voltage
-
-
mA
V
VIN=35V
-
VD
-
Typical Application
Rev. A/DX 2007-06-04
Page 4 of 6
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