Datasheet > MIC94064

MIC94064

更新时间： 2023-12-06 20:08:28

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
8页	572K
描述
The MIC94064 and MIC94065 are high-side load switches designed for operation between 1.7V to 5.5V.

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MIC94064 数据手册

MIC94064/5

High Side Power Switches

General Description

Features

The MIC94064 and MIC94065 are high-side load

switches designed for operation between 1.7V to 5.5V.

The devices contain a low on-resistance P-channel

MOSFET that supports over 2A of continuous current.

• 1.7V to 5.5V input voltage range

• 2A continuous operating current

• 77mΩ (typ) R_DSON

• Built-in level shift for control logic; can be operated by

The MIC94064/5 provides a slew rate controlled Soft-

Start turn-on of 115µs (typical) to prevent in-rush current

from glitching supply rails.

1.5V logic.

• Low 2µA quiescent current

• Soft-Start: 115µs

The MIC94065 features an active load discharge circuit

which insures capacitive loads retain no charge when

the main switch is in an OFF state.

• Micro-power shutdown <1µA

• Load discharge circuit: MIC94065

• Space saving 1.2x1.6 mm Thin MLF^®package

An active pull-down on the enable input keeps

MIC94064/5 in a default OFF state until the EN pin is

pulled to a high level. Built-in level shift circuitry allows

low voltage logic signals to switch higher supply

voltages, or vice versa; high level logic signals can

control low level voltages.

Applications

• Load switch in portable applications:

Cellular phones

PDAs

MP3 players

Digital Cameras

Portable instrumentation

The MIC94064/5’s operating voltage range makes them

suitable for 1-cell Lithium ion and 2- to 3-cell

NiMH/NiCad/Alkaline powered systems, as well as all 5V

applications. Their low operating current of 2µA and low

shutdown current of <1µA maximize battery life.

• Battery switch-over circuits

• Level translator

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

________________________________________________________________________________________________________

Typical Application

MIC94064

MIC94065

Load Switch Application

Load Switch with Capacitive Load Discharge

MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, 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

M9999-011608

January 2008

12 3 4 5 6 7 8

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