August 2004

1

MIC5213

MIC5213

Micrel

General Description

The MIC5213 is a

µCap 80mA linear voltage regulator in the

Teeny™ SC-70 package. Featuring half the footprint of the

standard SOT-23 package, this Teeny™ SC-70 regulator

has very low dropout voltage (typically 20mV at light loads

and 300mV at 80mA) and very low ground current (225

µA at

20mA output). It also offers better than 3% initial accuracy

and includes a logic-compatible enable input.

The

µCap regulator design is optimized to work with low-

value, low-cost ceramic capacitors. The outputs typically

require only 0.47

µF of output capacitance for stability.

Designed especially for hand-held, battery-powered devices,

the MIC5213 can be controlled by a CMOS or TTL compatible

logic signal. When disabled, power consumption drops nearly

to zero. If on-off control is not required, the enable pin may be

tied to the input for 3-terminal operation. The ground current

of the MIC5213 increases only slightly in dropout, further

prolonging battery life. Key MIC5213 features include current

limiting, overtemperature shutdown, and protection against

reversed battery.

The MIC5213 is available in 2.5V, 2.6V, 2.7V, 2.8V, 3.0V,

3.3V, 3.6V, and 5.0V fixed voltages. Other voltages are

available; contact Micrel for details.

Typical Applications

15

2

34

0.47µF

Enable

Shutdown

Regulator Circuit

Ordering Information

Part Number

Marking

Voltage

Junction Temp. Range

Package

Standard

Pb-Free

Standard

Pb-Free

MIC5213-2.5BC5

MIC5213-2.5YC5

LAM

LAM

2.5V

–40

°C to +125°C

SC-70-5

MIC5213-2.6BC5

MIC5213-2.6YC5

LAQ

LAQ

2.6V

–40

°C to +125°C

SC-70-5

MIC5213-2.7BC5

MIC5213-2.7YC5

LAL

LAL

2.7V

–40

°C to +125°C

SC-70-5

MIC5213-2.8BC5

MIC5213-2.8YC5

LAJ

LAJ

2.8V

–40

°C to +125°C

SC-70-5

MIC5213-3.0BC5

MIC5213-3.0YC5

LAG

LAG

3.0V

–40

°C to +125°C

SC-70-5

MIC5213-3.3BC5

MIC5213-3.3YC5

LAE

LAE

3.3V

–40

°C to +125°C

SC-70-5

MIC5213-3.6BC5

MIC5213-3.6YC5

LAD

LAD

3.6V

–40

°C to +125°C

SC-70-5

MIC5213-5.0BC5

MIC5213-5.0YC5

LAB

LAB

5.0V

–40

°C to +125°C

SC-70-5

Other voltages available. Contact Micrel for details.

Features

• Teeny™ SC-70 package

• Wide selection of output voltages

• Guaranteed 80mA output

• Low quiescent current

• Low dropout voltage

• Tight load and line regulation

• Low temperature coefficient

• Current and thermal limiting

• Reversed input polarity protection

• Zero off-mode current

• Logic-controlled shutdown

• Stability with low ESR ceramic capacitors

Applications

• Cellular telephones

• Laptop, notebook, and palmtop computers

• Battery-powered equipment

• Bar code scanners

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

• High-efficiency linear power supplies

MIC5213

Teeny™ SC-70

Final Information

Teeny is a trademark of Micrel, Inc.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000• http://www.micrel.com