廬
LPR30
LOW DROP VOLTAGE REGULATOR DRIVE
FOR EXTERNAL N-CHANNEL POWER MOSFET
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s
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VERY LOW DROPOUT POWER MOSFET
DRIVER
HIGH PRECISION Vref = 2.5V (鹵 2%)
VERY LOW CURRENT DRAIN (TYP. 2mA)
REFERENCE OUTPUT CURRENT UP TO
20mA
OPERATING SUPPLY VOLTAGE FROM 5V
TO 30V
MAXIMUM INPUT VOLTAGE ON-GATE PIN
(N. 8) UP TO 60V
INTERNAL CURRENT LIMIT OPERATIONAL
AMPLIFIER OFFSET TRIMMED AT
50mV
鹵
10mV
NO CAPACITOR IS NEEDED FOR STABILITY
OF REFERENCE OUTPUT
TEMPERATURE RANGE 0
o
C TO 70
o
C
DIP-8
SO-8
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LOW PARTS COUNT 5V TO 3.3V
COMPUTER SUPPLY
LOW NOISE/LOW DROP SMPS POST
REGULATOR
APPLICATION
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ULTRA HIGH CURRENT ULTRA LOW
DROPOUT VOLTAGE REGULATOR
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CONSTANT HIGH CURRENT SOURCE
BLOCK DIAGRAM
DESCRIPTION
The LPR30 is a very Low Dropout Regulator
Controller in a single IC solution for very high
current low dropout linear voltgage regulator. It
uses an external N-CHANNEL POWER MOSFET
as the linear pass element. The LPR30 features a
dropout voltage as low as the R
DS(on)
of the
May 2000
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