MIC5219-2.7BM5 Micrel Semiconductor, MIC5219-2.7BM5 Datasheet

MIC5219-2.7BM5

Manufacturer Part Number

MIC5219-2.7BM5

Description

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC5219BM5.pdf (14 pages)

2.MIC5219-2.7BM5.pdf (12 pages)

Specifications of MIC5219-2.7BM5

Case

SOT-23

Date_code

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC5219-2.7BM5

Manufacturer:

MICREL

Quantity:

496

Company:

Meier Automation Equipment Co., Limited

Part Number:

MIC5219-2.7BM5

Manufacturer:

MICREL/麦瑞

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC5219-2.7BM5TR

Manufacturer:

MICREL

Quantity:

16 184

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MM8 is a trademark of Micrel, Inc.

MicroLeadFrame and MLF are trademarks of Amkor Technology.

General Description

The MIC5219 is an efﬁ cient 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 ﬁ xed output voltages

in the space-saving 6-pin (2mm × 2mm) MLF™, SOT-23-5

and MM8™ 8-pin power 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.

January 2005

Typical Applications

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

SHUTDOWN

E N A B L E

5V Ultra-Low-Noise Regulator

OUT

tantalum

2.2µF

SHUTDOWN

ENABLE

470pF

MIC5219-5.0BMM

Ultra-Low-Noise Regulator

MIC5219-x.xBML

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 coefﬁ cient

• 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-efﬁ ciency linear power supplies

SOT-23-5 package - 500mA peak

2mm×2mm MLF package - 500mA continuous

MSOP-8 package - 500mA continuous

SHUTDOWN

500mA-Peak Output LDO Regulator

E N A B L E

(optional)

3.3V Ultra-Low-Noise Regulator

BYP

and V

MIC5219-3.3BM5

MIC5219

regulation and switching

OUT

470pF

2.2µF

tantalum

OUT

3.3V

M0371-121003

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