KD1084ADT-R datasheet(1/22 Pages) STMICROELECTRONICS

Part #	KD1084ADT-R

Description	5A Low drop positive voltage regulator adjustable and fixed

PDF	22 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 22 page

May 2007

Rev. 6

1/22

22

KD1084 series

5A Low drop positive voltage regulator adjustable and fixed

Features

■ Typical dropout 1.3V (at 5A)

■ Three terminal adjustable or fixed output

voltage 1.8V, 2.5V, 3.3V.

■ Guaranteed output current up to 5A

■ Output tolerance ±1% at 25°C and ±2% in full

temperature range for the "A" version

■ Output tolerance ±2% at 25°C and ±3% In full

temperature range internal power and thermal

limit

■ Wide operating temp. range -40°C to 125°C

■ Package available: TO-220, D2PAK, DPAK

■ Pinout compatibility with standard adjustable

VREG

Description

The KD1084 is a LOW DROP Voltage Regulator

able to provide up to 5A of Output Current.

Dropout is guaranteed at a maximum of 1.5V at

the maximum output current, decreasing at lower

loads. The KD1084 is pin to pin compatible with

he older 3-terminal adjustable regulators but has

better performances in term of drop and output

tolerance. A 2.85V output version is suitable for

SCSI-2 active termination. Unlike PNP regulators,

where a part of the output current is wasted as

quiescent current, the KD1084 quiescent current

flows into the load, so increase efficiency. Only a

10µF minimum capacitor is need for stability.

The devices are supplied in TO-220, D2PAK and

DPAK. On chip trimming allows the regulator to

reach a very tight output voltage tolerance, within

±1% at 25°C for "A" version and ±2% at 25°C for

standard version.

DPAK

TO-220

D2PAK

www.st.com

Schematic diagram

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