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LD49300

Part Number	LD49300
Manufacturer	STMicroelectronics
Description	3A very low-dropout voltage regulator
Published	Aug 25, 2010
Detailed Description	www.DataSheet4U.com LD49300 3A Very low drop for low output voltage regulator Feature summary ■ Input voltage range: V...
Datasheet	LD49300 PDF File

Overview

www.
DataSheet4U.
com LD49300 3A 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 400mV 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 5.
5V and the bias supply requires between 3V and 6V for proper operation.
The LD49300 offers fixed output voltages from 0.
8V to 1.
8V and adjustable output voltages down to 0.
8V.
The LD49300 requires a minimum output capacitance for stability, and work optimally with small ceramic capacitors.
PPAK ■ ■ ■ ■ ■ ■ ■ ■ ■ Description The LD49300 is a high-bandwidth, low-dropout, 3.
0A voltage regulator, ideal for powering core voltages of low-power microprocessors.
The LD49300 implements a dual supply configuration allowing for very low output impedance and very fast transient response.
The LD49300 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 Applications ■ ■ ■ ■ ■ ■ Graphics processors PC Add-In Cards Microprocessor core voltage supply Low voltage digital ICs High Efficiency Linear power supplies SMPS post regulators Order code Part number LD49300PT08R (1) LD49300PT10R LD49300PT12R 1.
Adjustable Version.
Package PPAK (Tape&Reel) PPAK (Tape&Reel) PPAK (Tape&Reel) Packaging 2500 parts per reel 2500 parts per reel 2500 parts per reel December 2006 Rev.
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DataSheet4U.
com Contents LD49300 Contents 1 2 3 4 5 6 7 8 Typical application circuits .
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3 Alternative application circuits .
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LD49300 3A very low-dropout voltage regulator - STMicroelectronics

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