MIC5219YM5 Micrel Semiconductor, MIC5219YM5 Datasheet

MIC5219YM5

Manufacturer Part Number

MIC5219YM5

Description

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC5219YM5.pdf (14 pages)

2.MIC5219YM5.pdf (14 pages)

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Download datasheet (406Kb)

MM8 is a registered trademark of Micrel, Inc.

MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc..

General Description

The MIC5219 is an efficient linear voltage regulator with high

peak output current capability, very-low-dropout voltage, and

better than 1% output voltage accuracy. Dropout is typically

10mV at light loads and less than 500mV at full load.

The MIC5219 is designed to provide a peak output current for

start-up conditions where higher inrush current is demanded.

It features a 500mA peak output rating. Continuous output

current is limited only by package and layout.

The MIC5219 can be enabled or shut down by a CMOS or

TTL compatible signal. When disabled, power consumption

drops nearly to zero. Dropout ground current is minimized to

help prolong battery life. Other key features include reversed-

battery protection, current limiting, overtemperature shutdown,

and low noise performance with an ultra-low-noise option.

The MIC5219 is available in adjustable or fixed output volt-

ages in the space-saving 6-pin (2mm × 2mm) MLF

(2mm × 2mm) Thin MLF

MSOP packages. For higher power requirements see the

MIC5209 or MIC5237.

All support documentation can be found on Micrel’s web site

at www.micrel.com.

June 2009

Typical Applications

SHUTDOWN

SH U TD OWN

ENABLE

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

E N A B L E

OUT

tantalum

Ultra-Low-Noise Regulator (Fixed)

2.2µF

5V Ultra-Low-Noise Regulator

470pF

MIC5219-5.0BMM

SOT-23-5 and MM8

MIC5219-x.xYM L

(optional)

BYP

8-pin power

, 6-pin

OUT

Features

• 500mA output current capability

• Low 500mV maximum dropout voltage at full load

• Extremely tight load and line regulation

• Tiny SOT-23-5 and MM8™ power MSOP-8 package

• Ultra-low-noise output

• Low temperature coefficient

• Current and thermal limiting

• Reversed-battery protection

• CMOS/TTL-compatible enable/shutdown control

• Near-zero shutdown current

Applications

• Laptop, notebook, and palmtop computers

• Cellular telephones and battery-powered equipment

• Consumer and personal electronics

• PC Card V

• SMPS post-regulator/DC-to-DC modules

• High-efficiency linear power supplies

SHUTDOWN

ENABLE

SOT-23-5 package - 500mA peak

2mm×2mm MLF

2mm×2mm Thin MLF

continuous

MSOP-8 package - 500mA continuous

500mA-Peak Output LDO Regulator

SH U TD OWN

Ultra-Low-Noise Regulator (Adjustable)

E N A B L E

3.3V Ultra-Low-Noise Regulator

and V

MIC5219-3.3BM5

MIC5219

package - 500mA continuous

regulation and switching

MIC5219YMT

package - 500mA

470pF

2.2µF

tantalum

OUT

M0371-061809

3.3V

2.2µF

OUT

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