MIC5203-3.3BM5 Micrel Semiconductor, MIC5203-3.3BM5 Datasheet

MIC5203-3.3BM5

Manufacturer Part Number

MIC5203-3.3BM5

Description

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC5203-5.0BM4.pdf (7 pages)

2.MIC5203-5.0BM4.pdf (7 pages)

Specifications of MIC5203-3.3BM5

Case

SOT23-5

Date_code

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC5203-3.3BM5

Manufacturer:

MICREL

Quantity:

1 380

Company:

Meier Automation Equipment Co., Limited

Part Number:

MIC5203-3.3BM5

Manufacturer:

MIC

Quantity:

20 000

Current page: 1 of 7
Download datasheet (85Kb)

December 1998

MIC5203

General Description

The MIC5203 is a Cap™ 80mA linear voltage regulator with

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

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

20mA output), offering better than 3% initial accuracy with a

logic-compatible enable input.

The Cap™ regulator design is optimized to work with low-

value, low-cost ceramic capacitors. The outputs typically

require only 0.47 F of output capacitance for stability.

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

the MIC5203 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 MIC5203 increases only slightly in dropout, further

prolonging battery life. Key MIC5203 features include current

limiting, overtemperature shutdown, and protection against

reversed battery.

The MIC5203 is available in 2.8V, 3.0V, 3.3V, 3.6V, 3.8V,

4.0V, 4.5V, 4.75V, and 5.0V fixed voltages. Other voltages

are available; contact Micrel for details.

Typical Applications

Shutdown

Enable

SOT-23-5 Version

SOT-143 Version

LAxx

0.47µF

OUT

0.47µF

OUT

Ordering Information

Other voltages available. Contact Micrel for details.

Part Number

MIC5203-3.0BM4

MIC5203-3.3BM4

MIC5203-3.6BM4

MIC5203-3.8BM4

MIC5203-4.0BM4

MIC5203-4.5BM4

MIC5203-4.7BM4

MIC5203-5.0BM4

MIC5203-2.8BM5

MIC5203-3.0BM5

MIC5203-3.3BM5

MIC5203-3.6BM5

MIC5203-3.8BM5

MIC5203-4.0BM5

MIC5203-4.5BM5

MIC5203-4.7BM5

MIC5203-5.0BM5

3-141

Marking

LA30

LA33

LA36

LA38

LA40

LA45

LA47

LA50

LA28

LK30

LK33

LK36

LK38

LK40

LK45

LK47

LK50

Features

• Tiny 4-lead and 5-lead surface-mount packages

• 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

Cap™ 80mA Low-Dropout Voltage Regulator

Voltage

4.75V

3.0V

3.3V

3.6V

3.8V

4.0V

4.5V

5.0V

2.8V

3.0V

3.3V

3.6V

3.8V

4.0V

4.5V

5.0V

Junction Temp. Range

MIC5203

–40 C to +125 C

SOT-23-5

Package

SOT-143

Micrel

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