MIC49150BR-TR Micrel Semiconductor, MIC49150BR-TR Datasheet

MIC49150BR-TR

Manufacturer Part Number

MIC49150BR-TR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC49150BR-TR.pdf (13 pages)

Specifications of MIC49150BR-TR

Case

S-PAK-5

Date_code

08+

Current page: 1 of 13
Download datasheet (340Kb)

General Description

The MIC49150 is a high-bandwidth, low-dropout, 1.5A volt-

age regulator ideal for powering core voltages of low-

power microprocessors. The MIC49150 implements a dual

supply

impedance and very fast transient response.

The MIC49150 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

6.5V and the bias supply requires between 3V and 6.5V

for proper operation. The MIC49150 offers ﬁxed output

voltages from 0.9V to 1.8V and adjustable output voltages

down to 0.9V.

The MIC49150 requires a minimum of output capacitance

for stability, working optimally with small ceramic

capacitors.

The MIC49150 is available in an 8-pin power MSOP pack-

age and a 5-pin S-Pak. Its operating temperature range is

–40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Typical Application

November 2006

BIAS

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

BIAS

= 3.3V

conﬁguration

Ceramic

= 1µF

Fast Transient Response Regulator

= 1.8V

Low Voltage,

MIC49150BR

BIAS

allowing

GND

OUT

ADJ

for

very

OUT

Ceramic

= 1.0V

OUT

low

= 1µF

output

Features

• Input Voltage Range:

• Stable with 1µF ceramic capacitor

• ±1% initial tolerance

• Maximum dropout voltage (V

• Adjustable output voltage down to 0.9V

• Ultra fast transient response (Up to 10MHz bandwidth)

• Excellent line and load regulation speciﬁcations

• Logic controlled shutdown option

• Thermal shutdown and current limit protection

• Power MSOP-8 and S-Pak packages

• Junction temperature range: –40°C to 125°C

Applications

• Graphics processors

• PC add-in cards

• Microprocessor core voltage supply

• Low voltage digital ICs

• High efficiency linear power supplies

• SMPS post regulators

408

over temperature

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

–

1.5A Low Voltage LDO Regulator

BIAS

: 1.4V to 6.5V

: 3.0V to 6.5V

w/Dual Input Voltages

MIC49150

–V

OUT

) of 500mV

M9999-111306

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