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L4940P85 数据表(PDF) 7 Page - STMicroelectronics

部件名 L4940P85
功能描述  Very low drop 1.5 A regulator
PDF  23 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4940P85 数据表(HTML) 7 Page - STMicroelectronics

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L4940xx
Electrical characteristics
7/23
5
Electrical characteristics
Table 4.
Electrical characteristics of L4940xx5 (Refer to test circuit, VI = 7 V, CI = 0.1 µF,
CO = 22 µF, TJ = 25°C, unless otherwise specified.)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
IO = 500 mA
4.9
5
5.1
V
VO
Output voltage
IO = 5mA to 1.5A, VI = 6.5 to 15 V
4.8
5
5.2
V
VI
Input voltage
IO = 5 mA
17
V
ΔVO
Line regulation
VI = 6 to 17 V, IO = 5 mA
4
10
mV
ΔVO
Load regulation
IO = 5 mA to 1.5 A
8
25
mV
IO = 0.5 A to 1 A
5
15
mV
Iq
Quiescent current
IO = 5 mA
5
8
mA
IO = 1.5 A, VI = 6.5 V
30
50
mA
ΔIq
Quiescent current change
IO = 5 mA
3
mA
IO = 1.5 A, VI = 6.5 to 16 V
15
mA
ΔVO/ΔT Output voltage drift
0.5
mV/°C
SVR
Supply voltage rejection
f = 120 Hz, IO = 1 A
58
68
dB
Vd
Dropout voltage
IO = 0.5 A
200
400
mV
IO = 1.5 A
500
900
mV
Isc
Short circuit current
VI = 14 V
2
2.7
A
VI = 6.5 V
2.2
2.9



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