L7818CV(2014) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L7818CV Datasheet PDF : 58 Pages
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Electrical characteristics
Positive voltage regulator ICs
Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified(p).
Table 18. Electrical characteristics of L7824C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO Output voltage
TJ = 25°C
23
24
25
V
VO Output voltage
IO = 5 mA to 1 A, VI = 27 to 37 V
22.8 24 25.2 V
VO Output voltage
IO = 1 A, VI = 37 to 38 V, TJ = 25°C
22.8 24 25.2 V
ΔVO(1) Line regulation
VI = 27 to 38 V, TJ = 25°C
VI = 30 to 36 V, TJ = 25°C
480
mV
240
ΔVO(1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
IO = 250 to 750 mA, TJ = 25°C
480
mV
240
Id
Quiescent current
TJ = 25°C
8
mA
ΔId
IO = 5 mA to 1 A
Quiescent current change
VI = 27 to 38 V
0.5
mA
1
ΔVO/ΔT Output voltage drift
IO = 5 mA
-1.5
mV/°C
eN Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25°C
170
µV/VO
SVR Supply voltage rejection VI = 28 to 38 V, f = 120 Hz
50
dB
Vd Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO Output resistance
f = 1 kHz
28
mΩ
Isc Short circuit current
VI = 35 V, TJ = 25°C
0.15
A
Iscp Short circuit peak current TJ = 25°C
2.1
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.
24/58
p. Minimum load current for regulation is 5 mA.
DocID2143 Rev 32
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