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Dated : 07/12/2002
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
ST 78L13
Electrical Characteristics
(Unless otherwise specified, VIN=21V, IOUT=40mA, CIN=0.33μF, COUT=0.1μF, Tj=25°C)
Symbol
Test Condition
Min.
Typ.
Max.
Uunit
Output Voltage
VOUT
12.45
13
13.55
V
Input Regulation
Reg. line
16V
≤V
IN≤28V
-
125
270
mV
17V
≤V
IN≤28V
-
105
225
Load Regulation
Reg. load
1.0mA
≤I
OUT≤100mA
-
22
120
mV
1.0mA
≤I
OUT≤40mA
-
11
60
Output Voltage
VOUT
16V
≤V
IN≤28V
12.54
-
13.86
V
1.0mA
≤I
OUT≤40mA
VOUT
VIN=21V
12.54
-
13.86
V
1.0mA
≤I
OUT≤70mA
Quiescent Current
IB
-
3.2
6.5
mA
Quiescent
Current
With line
17V
≤V
IN≤28V
-
-
1.5
Change
With load
ΔI
B
1.0mA
≤I
OUT≤40mA
-
-
0.1
mA
Output Noise Voltage
VNO
Ta=25
°C,
10Hz
≤f≤100KHz
-
90
-
μV
Ripple Rejection
RR
f=100Hz,
17V
≤V
IN≤27V,Tj=25°C
34
41
-
dB
Dropout Voltage
⎢V
IN-VOUT ⎢
Tj=25°C
-
1.7
-
V
Average Temperature
Coefficient of Output Voltage
TCVO
IOUT=5mA
-
1.2
-
mV/
°C
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