MIC5205-3.3BM5 Micrel Semiconductor, MIC5205-3.3BM5 Datasheet

MIC5205-3.3BM5

Manufacturer Part Number

MIC5205-3.3BM5

Description

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC5205-3.3BM5.pdf (10 pages)

2.MIC5205-3.3BM5.pdf (12 pages)

Specifications of MIC5205-3.3BM5

Case

SOT-23

Date_code

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC5205-3.3BM5

Manufacturer:

MICREL

Quantity:

4 758

Company:

Meier Automation Equipment Co., Limited

Part Number:

MIC5205-3.3BM5

Manufacturer:

MICREL/麦瑞

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC5205-3.3BM5 TR

Manufacturer:

MICREL

Quantity:

3 186

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MIC5205

General Description

The MIC5205 is an efficient linear voltage regulator with ultra-

low-noise output, very low dropout voltage (typically 17mV at

light loads and 165mV at 150mA), and very low ground

current (600 A at 100mA output). The MIC5205 offers better

than 1% initial accuracy.

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

the MIC5205 includes a CMOS or TTL compatible enable/

shutdown control input. When shutdown, power consump-

tion drops nearly to zero. Regulator ground current increases

only slightly in dropout, further prolonging battery life.

Key MIC5205 features include a reference bypass pin to

improve its already excellent low-noise performance, re-

versed-battery protection,

overtemperature shutdown.

The MIC5205 is available in fixed and adjustable output

voltage versions in a small SOT-23-5 package.

For low-dropout regulators that are stable with ceramic

output capacitors, see the Cap MIC5245/6/7 family.

Typical Application

June 2000

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

Ordering Information

Other voltages available. Contact Micrel for details.

Part Number

MIC5205BM5

MIC5205-2.5BM5

MIC5205-2.7BM5

MIC5205-2.8BM5

MIC5205-2.85BM5

MIC5205-2.9BM5

MIC5205-3.0BM5

MIC5205-3.3BM5

MIC5205-3.6BM5

MIC5205-3.8BM5

MIC5205-4.0BM5

MIC5205-5.0BM5

EN (pin 3) may be

connected directly

to IN (pin 1).

Shutdown

Enable

current

Ultra-Low-Noise Regulator Application

MIC5205-x.xBM5

limiting,

Marking

LBAA

LB25

LB27

LB28

LB2J

LB29

LB30

LB33

LB36

LB38

LB40

LB50

and

BYP

Voltage

2.85V

2.5V

2.7V

2.8V

2.9V

3.0V

3.3V

3.6V

3.8V

4.0V

5.0V

tantalum

Adj

OUT

Features

• Ultra-low-noise output

• High output voltage accuracy

• Guaranteed 150mA output

• Low quiescent current

• Low dropout voltage

• Extremely tight load and line regulation

• Very low temperature coefficient

• Current and thermal limiting

• Reverse-battery protection

• “Zero” off-mode current

• Logic-controlled electronic enable

Applications

• Cellular telephones

• Laptop, notebook, and palmtop computers

• Battery-powered equipment

• PCMCIA V

• Consumer/personal electronics

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

• High-efficiency linear power supplies

= 2.2µF

Accuracy

Low-Noise Operation:

Basic Operation:

BYP

150mA Low-Noise LDO Regulator

= 470pF, C

= not used, C

and V

Junction Temp. Range*

OUT

MIC5205

OUT

–40 C to +125 C

2.2µF

regulation/switching

1µF

SOT-23-5

Package

MIC5205

Micrel

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