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LD1085P15 Scheda tecnica(PDF) 3 Page - STMicroelectronics

Il numero della parte LD1085P15
Spiegazioni elettronici  3A LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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LD1085 SERIES
3/19
Table 3: Thermal Data
Figure 3: Application Circuits
Table 4: Electrical Characteristics Of LD1085#15 (VI=4.5V, 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
TO-220
D2PAK
Unit
Rthj-case
Thermal Resistance Junction-case
33
°C/W
Rthj-amb
Thermal Resistance Junction-ambient
50
62.5
°C/W
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO = 0 mA TJ = 25°C
1.485
1.5
1.515
V
IO = 0 to 5AVI = 3.1 to 30V (note 1)
1.47
1.5
1.53
V
∆VO
Line Regulation
IO = 0 mA VI = 3.1 to 18V TJ = 25°C
0.2
4
mV
IO = 0 mA VI = 3.1 to 15V
0.4
4
mV
∆VO
Load Regulation
IO = 0 to 3ATJ = 25°C
2
10
mV
IO = 0 to 3A
4
20
mV
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
Thermal Regulation
TA = 25°C, 30ms pulse
0.008
0.04
%/W
SVR
Supply Voltage Rejection
f = 120 Hz, CO = 25 µF,
IO = 3A
VI = 7.5 ± 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
%
R2
VO = VREF (1 + )
R1


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