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LD1580K7-15 Datasheet

  • LD1580K7-15

  • STMicroelectronics [7 A VERY LOW DROP POSITIVE VOLTAGE REGU...

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  • STMICROELECTRONICS   STMICROELECTRONICS

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LD1580
7 A VERY LOW DROP POSITIVE VOLTAGE REGULATOR
ADJUSTABLE AND FIXED
PRELIMINARY DATA
s
s
s
s
s
s
s
s
OUTPUT CURRENT LIMIT
LOW DROPOUT VOLTAGE: TYPICALLY
400mV AT 7A OUTPUT CURRENT
OUTPUT VOLTAGE REMOTE SENSE PIN
FAST TRANSIENT RESPONSE
THERMAL SHUTDOWN PROTECTION
WITH HYSTERESIS
WIDE OPERATING TEMPERATURE RANGE
-40掳C TO 125掳C
NO SUPPLY SEQUENCING PROBLEMS IN
DUAL SUPPLY MODE
OUTPUT VOLTAGES AVAILABLE 1.5 V, 1.8V,
2.5 V, 3.0 V, 3.3 V ADJUSTABLE.
HEPTAWATT
TM
PENTAWATT
TM
5
1
DESCRIPTION
The LD1580 is a very low dropout positive linear
voltage regulator particularly suitable in
applications requiring output currents up to 7 A.
The LD1580 typical dropout voltage is 400mV at
7A
while
it
decreases
at
lighter loads.
This very low dropout is achieved thanks to a
second input voltage pin, named V
CONTROL
,
which is also responsable of the output power
stage driving.
The LD1580 is provided with an output voltage
remote sense pin which reduces dramatically any
SCHEMATIC DIAGRAM
P
2
PAK
SPAK-5L
SPAK-7L
output voltage variations that could occur due to
load changes.
On fixed voltage devices, the ADJ pin is still
available. A small capacitor on this pin helps to
improve transient response.
November 2002
1/18
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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