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LM1085-05-220M データシート(PDF) 2 Page - Seme LAB

部品番号 LM1085-05-220M
部品情報  LOW DROPOUT 3 AMP POSITIVE
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メーカー  SEME-LAB [Seme LAB]
ホームページ  http://www.semelab.co.uk
Logo SEME-LAB - Seme LAB

LM1085-05-220M データシート(HTML) 2 Page - Seme LAB

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Prelim. 10/95
LM1085–220M–05
LM1085–05–220M
LM1085–12–220M
MILITARY VERSION
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk
Website: http://www.semelab.co.uk
VO
Output Voltage
VREF
Reference Voltage
REG(LINE)
Line Regulation
REG(LOAD)
Load Regulation
See notes 1,2
VD
Dropout Voltage
See note 3
Output
Parameter
Voltage Test Conditions
Min.
Typ. Max.
Unit
VIN = 6.5 to 20V
IO = 0 to 3A
TJ = –55 to 150°C
VIN = 13.5V to 25V
IO = 0 to 3A
TJ = –55 to 150°C
VIN – VOUT = 1.5 to 15V
IO = 10mA to 3A
TJ = –55 to 150°C
VIN = 6.5 to 20V
IO = 0
TJ = –55 to 150°C
VIN = 13.5 to 25V
IO = 0
TJ = –55 to 150°C
VIN – VOUT = 1.5 to 15V
ILOAD = 10mA
TJ = –55 to 150°C
VIN = 8V
IO = 0 to 3A
TJ = –55 to 150°C
VIN = 15V
IO = 0 to 3A
TJ = –55 to 150°C
VIN – VOUT = 3V
IO = 10mA to 3A
TJ = –55 to 150°C
DVOUT = 50mV
IOUT = 3A
TJ = –55 to 150°C
DVOUT = 120mV
IOUT = 3A
TJ = –55 to 150°C
DVREF = 1%
IOUT = 3A
TJ = –55 to 150°C
4.90
5
5.10
11.76
12
12.24
1.225
1.25
1.270
0.5
10
110
125
225
0.015
0.2
0.035
0.2
520
10
35
12
36
24
72
0.1
0.3
0.2
0.4
1.3
1.5
1.3
1.5
1.3
1.5
5
12
ADJ.
5
12
ADJ.
5
12
ADJ.
5
12
ADJ.
ELECTRICAL CHARACTERISTICS
(TJ = 25°C unless otherwise stated)
V
mV
%
mV
%
V
DESCRIPTION
The LM1085 is designed to provide 3A with higher efficiency than currently available devices. All internal circuitry is
designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load
current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents.
On-chip trimming adjusts the reference output voltage to 1%. Current limit is also trimmed, minimising the stress on both
the regulator and power source circuitry under overload conditions.
The LM1085 is pin compatible with older 3 terminal adjustable regulators. A 10
m F output capacitor is required on these
new devices; however, this is usually included in most regulator designs.
Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LM1085 quiescent
current flows into the load, increasing efficiency.


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