ld1580 STMicroelectronics, ld1580 Datasheet

ld1580

Manufacturer Part Number

ld1580

Description

7 A Very Low Drop Positive Voltage Regulator Adjustable And Fixed

Manufacturer

STMicroelectronics

Datasheet

1.LD1580.pdf (20 pages)

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LD1580

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ld1580K7-15R

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Features

■

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 responsible of the output power

stage driving.

Order codes

May 2007

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, 2.5 V, 3.3 V,

adjustable

7A Very low drop positive voltage regulator adjustable and fixed

LD1580P2T-R

PAK (T&R)

Packages

SPAK-7L (T&R)

LD1580K7-15R

LD1580K7-25R

LD1580K7-33R

Part number

Rev. 4

The LD1580 is provided with an output voltage

remote sense pin which reduces dramatically any

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.

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

heatsinking. On chip trimming allows the regulator

to reach a very tight output voltage tolerance,

within ±2% at the maximum output current and

over the full temperature range.

PAK

Output Voltage

Adjustable

1.5V

2.5V

3.3V

SPAK-7L

LD1580

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