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CD00000448 Fiches technique(PDF) 14 Page - STMicroelectronics

No de pièce CD00000448
Description  Precision 500 mA regulators
Download  31 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

CD00000448 Fiches technique(HTML) 14 Page - STMicroelectronics

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Electrical characteristics
L78MxxAB, L78MxxAC
14/31
Doc ID 2147 Rev 13
Refer to the test circuits, VI = 33 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF,
TJ = -40 to 125 °C (AB), TJ = 0 to 125 °C (AC) unless otherwise specified.
Table 11.
Electrical characteristics of L78M24XX
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
23.5
24
24.5
V
VO
Output voltage
IO = 5 to 350 mA, VI = 27 to 38 V
23
24
25
V
ΔVO
Line regulation
VI = 27 to 38 V, IO = 200 mA, TJ = 25°C
100
mV
VI = 28 to 38 V, IO = 200 mA, TJ = 25°C
30
ΔVO
Load regulation
IO = 5 to 500 mA, TJ = 25°C
480
mV
IO = 5 to 200 mA, TJ = 25°C
240
Id
Quiescent current
TJ = 25°C
6
mA
ΔId
Quiescent current change
IO = 5 to 350 mA
0.5
mA
IO = 200 mA, VI = 27 to 38 V
0.8
ΔVO/ΔT Output voltage drift
IO = 5 mA
-1.2
mV/°C
SVR
Supply voltage rejection
VI = 28 to 38 V, f = 120Hz, IO = 300mA,
TJ = 25°C
50
dB
eN
Output noise voltage
B =10Hz to 100kHz, TJ = 25°C
170
µV
Vd
Dropout voltage
TJ = 25°C
2
V
Isc
Short circuit current
VI = 35 V, TJ = 25°C
240
mA
Iscp
Short circuit peak current
TJ = 25°C
700
mA


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