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LD1085C 数据表(PDF) 7 Page - STMicroelectronics

部件名 LD1085C
功能描述  3A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
PDF  15 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LD1085C 数据表(HTML) 7 Page - STMicroelectronics

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LD1085C SERIES
7/15
ELECTRICAL CHARACTERISTICS OF LD1085CDT50 (VI=8V, CI = CO =10µF, TA = -40 to 125°C,
unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1085CDT80 (VI=11V, CI = CO =10µF, TA = -40 to 125°C,
unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO = 0 mA
TJ = 25°C
4.9
5
5.1
V
IO = 0 to 3A VI = 6.6 to 30V (note 1)
4.85
5
5.15
V
∆V
O
Line Regulation
IO = 0 mA
VI = 6.6 to 20V TJ = 25°C
0.5
10
mV
IO = 0 mA
VI = 6.6 to 20V
1
10
mV
∆V
O
Load Regulation
IO = 0 to 3A TJ = 25°C
5
20
mV
IO = 0 to 3A
10
35
V
Vd
Dropout Voltage
IO =3 A
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
Termal Regulation
TA = 25°C, 30ms pulse
0.008
0.04
%/W
SVR
Supply Voltage Rejection
f = 120 Hz,
CO = 25 µF, IO = 3A
VI = 10 ± 3V
60
72
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
%
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO = 0 mA
TJ = 25°C
7.84
8
8.16
V
IO = 0 to 3A VI = 9.8 to 30V (note 1)
7.76
8
8.24
V
∆V
O
Line Regulation
IO = 0 mA
VI = 9.8 to 20V TJ = 25°C
1
18
mV
IO = 0 mA
VI = 9.8 to 20V
2
18
mV
∆V
O
Load Regulation
IO = 0 to 3A TJ = 25°C
8
30
mV
IO = 0 to 3A
12
60
V
Vd
Dropout Voltage
IO =3 A
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
Termal Regulation
TA = 25°C, 30ms pulse
0.008
0.04
%/W
SVR
Supply Voltage Rejection
f = 120 Hz,
CO = 25 µF, IO = 3A
VI = 13 ± 3V
54
71
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
%



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