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L4931ABD15 반도체 회로 부품 판매점

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT



STMicroelectronics 로고
STMicroelectronics
L4931ABD15 데이터시트, 핀배열, 회로
L4931
® SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
s VERY LOW DROPOUT VOLTAGE (0.4V)
s VERY LOW QUIESCENT CURRENT
(TYP. 50 µA IN OFF MODE, 600µA IN ON
MODE)
s OUTPUT CURRENT UP TO 250 mA
s LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7;
3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 12V
s INTERNAL CURRENT AND THERMAL LIMIT
s ONLY 2.2µF FOR STABILITY
s AVAILABLE IN ± 1% (AB) OR 2% (C)
SELECTION AT 25 oC
s SUPPLY VOLTAGE REJECTION:
70db TYP. FOR 5V VERSION
s TEMPERATURE RANGE: -40 TO 125 oC
DESCRIPTION
The L4931 series are very Low Drop regulators
available in TO-220, SO-8, DPAK, PPAK and
TO-92 packages and in a wide range of output
voltages.
The very Low Drop voltage (0.4V) and the very
low quiescent current make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
TO-220
TO-92
PPAK
3
1
DPAK
SO-8
In PPAK and SO-8 packages a Shutdown Logic
Control function is available TTL compatible. This
means that when the device is used as a local
regulator, it is possible to put a part of the board
in standby, decreasing the total power
consumption. It requires only a 2.2 µF capacitor
for stability allowing space and cost saving.
SCHEMATIC DIAGRAM
April 1999
1/25


L4931ABD15 데이터시트, 핀배열, 회로
L4931 SERIES
ABSOLUTE MAXIMUM RATINGS
Sy mbo l
Parameter
Vi DC Input Voltage
Io Output Current
Ptot Power Dissipation
Tstg Storage Temperature Range
Top Operating Junction Temperature Range
Valu e
20
Internally limited
Internally limited
- 40 to 150
- 40 to 125
Un it
V
oC
oC
THERMAL DATA
Symbol
P ar am et er
Rthj- ca se Thermal Resistance Junction-case
Rthj-amb Thermal Resistance Junction-ambient
(*) Considering 6 cm2 of copper board heat-sink
CONNECTION DIAGRAM (top view)
TO-220
3
50
SO -8
20
55(*)
D PA K
8
100
PPAK
8
100
TO-92
200
Un it
oC/W
oC/W
TO-220
SO-8
PPAK
DPAK
2/25
pin 1 = VOUT
pin 2 = GND
pin 3 = VIN
TO-92
BOTTOM VIEW




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L4931ABD15 regulator

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