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LD1085V25 Datasheet(PDF) 11 Page - STMicroelectronics

No. de pieza LD1085V25
Descripción Electrónicos  3A Low drop positive voltage regulator adjustable and fixed
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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LD1085V25 Datasheet(HTML) 11 Page - STMicroelectronics

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LD1085 series
Electrical characteristics
11/27
Table 8.
Electrical characteristics of LD1085#12
(VI=15V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).
Symbol
Parameter
Test
Min.
Typ.
Max.
Unit
VO
Output voltage (1)
IO = 0 mA, TJ = 25°C
11.88
12
12.12
V
IO = 0 to 3A, VI = 13.8 to 30V
11.76
12
12.24
V
ΔVO
Line regulation
IO = 0 mA, VI = 13.8 to 25V,
TJ = 25°C
125
mV
IO = 0 mA, VI = 13.8 to 25V
2
25
mV
ΔVO
Load regulation
IO = 0 to 3A, TJ = 25°C
12
36
mV
IO = 0 to 3A
24
72
mV
Vd
Dropout voltage
IO = 3A
1.3
1.5
V
Iq
Quiescent current
VI ≤30V
5
10
mA
Isc
Short circuit current
VI - VO = 5V
3.2
4.5
A
VI - VO = 25V
0.2
0.5
A
Thermal regulation
TA = 25°C, 30ms pulse
0.008
0.04
%/W
SVR
Supply voltage rejection
f = 120 Hz, CO = 25µF, IO = 3A
VI = 17 ± 3V
54
66
dB
eN
RMS Output noise voltage (% of
VO)
TA = 25°C, f =10Hz to 10KHz
0.003
%
S
Temperature stability
0.5
%
S
Long term stability
TA = 125°C, 1000Hrs
0.5
%
1.
See short-circuit current curve for available output current at fixed dropout.


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