Datasheet > LD49150XX12

LD49150XX12

更新时间： 2024-11-22 12:21:35

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
22页	710K
描述
1.5 A very low drop for low output voltage regulator

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LD49150XX12 数据手册

LD49150XX08

LD49150XX10, LD49150XX12

1.5 A very low drop for low output voltage regulator

Features

■ Input voltage range:

– V = 1.4 V to 5.5 V

– V

= 3 V to 6 V

BIAS

■ Stable with ceramic capacitor

1.5 ꢀ initial tolerance

■ Maximum dropout voltage (V - V ) of 200 mV

■

DFN6 (3x3 mm)

PPAK

over temperature

■ Adjustable output voltage down to 0.8 V

■ Ultra fast transient response (up to 10 MHz

Description

bandwidth)

The LD49150xx is a high-bandwidth, low-dropout,

1.5 A voltage regulator, ideal for powering core

voltages of low-power microprocessors. The

LD49150xx implements a dual supply

■ Excellent line and load regulation

specifications

■ Logic controlled shutdown option

■ Thermal shutdown and current limit protection

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

configuration allowing for very low output

impedance and very fast transient response. The

LD49150xx 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 1.4 V to 5.5 V and the bias supply

requires between 3 V and 6 V for proper

operation. The LD49150xx offers fixed output

voltages from 0.8 V to 1.8 V and adjustable output

voltages down to 0.8 V. The LD49150xx 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

Table 1.

Device summary

Order codes

Output voltages

PPAK (tape and reel)

DFN6 (tape and reel) ⁽¹⁾

LD49150PT08R

LD49150PT10R

LD49150PT12R

0.8 V ⁽²⁾

1.0 V

LD49150PU10R

LD49150PU12R

1.2 V

1. Available on request.

2. Adjustable version.

June 2010

Doc ID 13446 Rev 3

1/22

www.st.com

12 3 4 5 6 7...22

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