MIC5205-2.5YM5TR 查看數據表（PDF） - Micrel

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MIC5205-2.5YM5TR

150mA Low-Noise LDO Regulator

Micrel 

MIC5205

150mA Low-Noise LDO Regulator

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 shut down, power

consumption 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,

reversed-battery protection, current limiting, and

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 µCap MIC5245/6/7 family.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

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 VCC and VPP regulation/switching

• Consumer/personal electronics

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

• High-efficiency linear power supplies

___________________________________________________________________________________________________________

Typical Application

Ultra-Low-Noise Regulator Application

Xxxxx is a trademark of Micrel, Inc

Xxxxx is a registered trademark of Micrel, Inc.

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

February 2006

M9999-020806

(408) 955-1690

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