mic38150 Micrel Semiconductor, mic38150 Datasheet

mic38150

Manufacturer Part Number

mic38150

Description

Heldo 1.5a High Efficiency Low Dropout Regulator

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC38150.pdf (15 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

mic38150HYHL

Manufacturer:

Micrel Inc

Quantity:

1 912

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General Description

The MIC38150 is a 1.5A continuous output current step

down converter. This is a follow on product in the new

HELDO

family, that provide the benefits of an LDO. They are easy

to use, feature fast transient performance, high PSRR and

low noise while offering the efficiency of a switching

regulator.

As output voltages move lower, the output noise and

transient response of a switching regulator become an

increasing challenge for designers. By combining a

switcher whose output is slaved to the input of a high

performance LDO, high efficiency is achieved with a clean

low noise output. The MIC38150 is designed to provide

less than 5mV of peak-to-peak noise and over 70dB of

PSRR at 1kHz. Furthermore, the architecture of the

MIC38150 is optimized for fast load transients allowing the

output to maintain less than 30mV of output voltage

deviation even during ultra fast load steps. This makes the

MIC38150 an ideal choice for low voltage ASICs and other

digital ICs.

The MIC38150 features a fully integrated switching

regulator and LDO combination, operates with input

voltages from 3.0V to 5.5V input and offers adjustable

output voltages down to 1.0V.

The

4mm×6mm×0.9mm MLF

–40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com

___________________________________________________________________________________________________________

Typical Application

HELDO is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademark of Amkor Technologies

September 2009

MIC38150

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

(High Efficiency Low Drop Out Regulators)

offered

package and can operate from

the

small

28-pin

Features

Applications

408

•

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

Output current up to 1.5A

Input voltage range: 3.0V to 5.5V

Adjustable output voltage down to 1.0V

Output noise less than 5mV

Ultra fast transient performance

Unique switcher plus LDO architecture

Fully integrated MOSFET switches

Micro-power shutdown

Easy upgrade from LDO as power dissipation

becomes an issue

Thermal shutdown and current limit protection

4mm×6mm×0.9mm MLF

Point-of-load applications

Networking, server, industrial power

Wireless base-stations

Sensitive RF applications

1.5A High Efficiency Low Dropout

MIC38150

Regulator

HELDO

package

M9999-091109-B

HELDO

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