L7818CV(2014) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L7818CV Datasheet PDF : 58 Pages
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Positive voltage regulator ICs
Electrical characteristics
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14.5 V, IO = 500 mA, CI = 0.33 µF,
CO = 0.1 µF unless otherwise specified(k).
Table 13. Electrical characteristics of L7885C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO Output voltage
TJ = 25°C
8.2 8.5 8.8
V
VO Output voltage
IO = 5 mA to 1 A, VI = 11 to 21.5 V
8.1 8.5 8.9
V
VO Output voltage
IO = 1 A, VI = 21.5 to 26 V, TJ = 25°C
8.1 8.5 8.9
V
ΔVO(1) Line regulation
VI = 11 to 27 V, TJ = 25°C
VI = 11.5 to 17.5 V, TJ = 25°C
160
mV
80
ΔVO(1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
IO = 250 to 750 mA, TJ = 25°C
160
mV
80
Id
Quiescent current
TJ = 25°C
8
mA
ΔId
IO = 5 mA to 1 A
Quiescent current change
VI = 11 to 26 V
0.5
mA
1
ΔVO/ΔT Output voltage drift
IO = 5 mA
-0.8
mV/°C
eN Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25°C
55
µV/VO
SVR Supply voltage rejection VI = 12 to 22 V, f = 120 Hz
56
dB
Vd Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO Output resistance
f = 1 kHz
16
mΩ
Isc Short circuit current
VI = 35 V, TJ = 25°C
0.45
A
Iscp Short circuit peak current TJ = 25°C
2.2
A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
k. Minimum load current for regulation is 5 mA.
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