Datasheet > MIC5311_06

MIC5311_06

更新时间： 2024-11-02 07:17:03

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
11页	343K
描述
LowQ? Mode Dual 300mA LDO

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MIC5311_06 数据手册

MIC5311

LowQ™ Mode Dual 300mA LDO

General Description

Features

• Input voltage range: 2.5V to 5.5V

• LowQ™ Mode

The MIC5311 is a high performance, dual µCap low

dropout regulator offering ultra-low operating current

and a second, even lower operating current mode,

LowQ™ mode, reducing operating current by 75%.

Each regulator can source up to 300mA of output

current maximum.

7µA total quiescent current

10mA output current capable LowQ™ mode

Logic level control with external pin

• Stable with ceramic output capacitor

• 2 LDO Outputs – 300mA each

• Tiny 3mm x 3mm MLF™-10 package

• Low dropout voltage of 60mV @ 150mA

Ideal for battery operated applications, the MIC5311

offers 1% accuracy, extremely low dropout voltage

(60mV @ 150mA), and low ground current (typically

28µA total). When put into LowQ™ mode, the internal

current draw drops down to 7µA total. The MIC5311

also comes equipped with a TTL logic compatible

enable pin that allows the part to be put into a zero-off-

mode current state, drawing no current when disabled.

• Ultra-low quiescent current of 28µA total in Full

Current Mode

• High output accuracy

±1.0% initial accuracy

±2.0% over temperature

The MIC5311 is a µCap design, operating with very

small ceramic output capacitors for stability, reducing

required board space and component cost.

• Thermal Shutdown Protection

• Current Limit Protection

The MIC5311 is available in fixed output voltages in the

3mm x 3mm MLF-10 leadless package. Data sheets

and support documentation can be found on Micrel’s

web site at www.micrel.com.

Applications

• Cellular/PCS phones

• Wireless modems

• PDAs

• MP3 Players

Typical Application

V_IN

V_OUT1

V_OUT2

V_CORE

V_I/O

EN1

EN2

Baseband

µProcessor

LOWQ

BYP

GND

MIC5311-xxBML

MLF and MicroLeadFrame are trademarks of Amkor Technology, 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

M9999-032706

(408) 955-1690

March 2006

12 3 4 5 6 7...11

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