LD49150 datasheet(1/20 Pages) STMICROELECTRONICS

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April 2007

Rev. 1

1/20

20

LD49150

1.5A Very low drop for low output voltage regulator

Feature summary

■ Input voltage range:

VI = 1.4V to 5.5V

VBIAS = 3V to 6V

■ Stable with ceramic capacitor

■ ±1.5% initial tolerance

■ Maximum dropout voltage (VI - VO) of 200mV

over temperature

■ Adjustable output voltage down to 0.8V

■ Ultra fast transient response (up to 10MHz

bandwidth)

■ Excellent line and load regulation

specifications

■ Logic controlled shutdown option

■ Thermal shutdown and current limit protection

■ Junction temperature range: –25°C to 125°C

Description

The LD49150 is a high-bandwidth, low-dropout,

1.5A voltage regulator, ideal for powering core

voltages of low-power microprocessors. The

LD49150 implements a dual supply configuration

allowing for very low output impedance and very

fast transient response. The LD49150 requires a

bias input supply and a main input supply,

allowing for ultra-low input voltages on the main

supply rail. The input supply operates from 1.4V to

5.5V and the bias supply requires between 3V

and 6V for proper operation. The LD49150 offers

fixed output voltages from 0.8V to 1.8V and

adjustable output voltages down to 0.8V.

The LD49150 requires a minimum output

capacitance for stability, and work optimally with

small ceramic capacitors.

Applications

■ Graphics processors

■ PC Add-In Cards

■ Microprocessor core voltage supply

■ Low voltage digital ICs

■ High Efficiency Linear power supplies

■ SMPS post regulators

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PPAK

Order codes

Part number

Package

Packaging

LD49150PT08R (1)

1.

Adjustable Version.

PPAK (Tape&Reel)

2500 parts per reel

LD49150PT10R

PPAK (Tape&Reel)

2500 parts per reel

LD49150PT12R

PPAK (Tape&Reel)

2500 parts per reel

Số phần tương tự - LD49150

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	LD49150PT08R	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010
	LD49150PT10R	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010
	LD49150PT12R	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010
	LD49150PU10R	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010
	LD49150PU12R	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010

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Mô tả tương tự - LD49150

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STMicroelectronics	LD49150XX08	710Kb / 22P	1.5 A very low drop for low output voltage regulator 29-Jun-2010
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