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CD00000448 Fiches technique(PDF) 12 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) 12 Page - STMicroelectronics

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Electrical characteristics
L78MxxAB, L78MxxAC
12/31
Doc ID 2147 Rev 13
Refer to the test circuits, VI = 19 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 9.
Electrical characteristics of L78M12XX
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
11.75
12
12.25
V
VO
Output voltage
IO = 5 to 350 mA, VI = 14.5 to 27 V
11.5
12
12.5
V
ΔVO
Line regulation
VI = 14.5 to 30 V, IO = 200 mA,
TJ = 25°C
100
mV
VI = 16 to 30 V, IO = 200 mA, TJ = 25°C
30
ΔVO
Load regulation
IO = 5 to 500 mA, TJ = 25°C
240
mV
IO = 5 to 200 mA, TJ = 25°C
120
Id
Quiescent current
TJ = 25°C
6
mA
ΔId
Quiescent current change
IO = 5 to 350 mA
0.5
mA
IO = 200 mA, VI = 14.5 to 30 V
0.8
ΔVO/ΔT Output voltage drift
IO = 5 mA
-1
mV/°C
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120Hz, IO = 300mA,
TJ = 25°C
55
dB
eN
Output noise voltage
B =10Hz to 100kHz, TJ = 25°C
75
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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