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LD1085D2T18R 数据表(PDF) 7 Page - STMicroelectronics

部件名 LD1085D2T18R
功能描述  3 A low drop positive voltage regulator adjustable and fixed
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LD1085D2T18R 数据表(HTML) 7 Page - STMicroelectronics

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LD1085xx
Electrical characteristics
7/28
5
Electrical characteristics
Table 4.
Electrical characteristics of LD1085#15
(VI = 4.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VO
Output voltage (1)
1.
See short-circuit current curve for available output current at fixed dropout.
IO = 0 mA, TJ = 25°C
1.485
1.5
1.515
V
IO = 0 to 3 A, VI = 3.1 to 30 V
1.47
1.5
1.53
V
ΔVO
Line regulation
IO = 0 mA, VI = 3.1 to 18 V, TJ = 25°C
0.2
4
mV
IO = 0 mA, VI = 3.1 to 15 V
0.4
4
mV
ΔVO
Load regulation
IO = 0 to 3 A, TJ = 25°C
2
10
mV
IO = 0 to 3 A
4
20
mV
Vd
Dropout voltage
IO =3 A
1.3
1.5
V
Iq
Quiescent current
VI ≤30 V
5
10
mA
Isc
Short circuit current
VI - VO = 5 V
3.2
4.5
A
VI - VO = 25 V
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 = 25 µF, IO = 3 A
VI = 7.5 ± 3 V
60
72
dB
eN
RMS output noise voltage (%
of VO)
TA = 25°C, f =10 Hz to 10 kHz
0.003
%
S
Temperature stability
0.5
%
S
Long term stability
TA = 125°C, 1000Hrs
0.5
%


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