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LD1580

ST Microelectronics
Part Number LD1580
Manufacturer ST Microelectronics
Description 7 A VERY LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
Published Apr 25, 2005
Detailed Description LD1580 7 A VERY LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED PRELIMINARY DATA s s s s s s s s OUTPUT CU...
Datasheet PDF File LD1580 PDF File

LD1580
LD1580


Overview
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°C TO 125°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.
HEPTAWATTTM PENTAWATTTM 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 VCONTROL, 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 P2PAK 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.
LD1580 The LD1580 also features a built-in output current limit function and a thermal shutdown protection with hysteresis which prevents from excessive power dissipation in case of insufficient ABSOLUTE MAXIMUM RATINGS Symbol VPOWER IOUT PD Tstg Top DC VPOWER voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range VCONTROL DC VCONTROL voltage Parameter Value from -0.
3 to 6 from -0.
3 to 13 Internally Limited Internally Limited -55 to +150 -40 to +125 Unit V V A W °C °C heatsinking.
On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ...



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