MIC94060 Micrel Semiconductor, MIC94060 Datasheet

MIC94060

Manufacturer Part Number

MIC94060

Description

100m SC-70-6 Smart Load Switch

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC94060.pdf (6 pages)

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Download datasheet (54Kb)

General Description

The MIC94060 and MIC94061 are smart high-side load

switches housed in the SC-70-6 package. The devices

contain a low on-resistance, 100m (max) p-channel MOSFET

that is driven by built-in level-shift and slew-rate control

circuitry. The low on-resistance of the devices allows for them

to support over 2A of continuous current. The MIC94061

features an active pull-down circuit that discharges capaci-

tive loads through a 200 switch when the IC is set to the OFF

state.

Pull down circuitry keeps the MIC94060/1 in a default OFF

state until the EN pin is pulled to a high level. The built-in level

shift circuitry allows for a logic signal that may be different

from the supply voltage to switch the high-side P-channel

MOSFET on or off.

prevents in-rush current from causing glitches on the supply

rail.

Battery life is saved in portable applications with the IC’s low

quiescent current of 2 A and low shutdown current of <1 A.

Their 1.8V to 5.5V operating voltage range makes the

MIC94060/1 suitable for 1-cell Li Ion, 2- to 3-cell NiMH / NiCad

/ Alkaline, as well as other sub-5V input applications.

Integrating the level-shift and slew-rate control circuitry saves

valuable board space and reduces component placement

cost compared to discrete solutions.

The MIC94060/1 are housed in the Teeny ™ SC-70-6 pack-

age and have a junction temperature range of –40 C to

+150 C.

Typical Application

July 2002

MIC94060/94061

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

Load Switch Application

The 1 s turn-on slew rate control

Level Shift

Slew Rate

Control

and

MIC94060

77m

LOAD

Features

• 1.8V to 5.5V input voltage range

• Built-in level shift circuitry:

• Low on-resistance p-channel MOSFET:

• Built-in slew-rate control:

• Low 2 A quiescent current

• <1 A micropower shutdown

• Built-in fast-off load discharge circuit (MIC94061)

• Teeny ™ SC-70-6 package

• –40 C to +150 C junction temperature range

Applications

• Load switch in portable applications:

• Battery switch over circuits

• Level translators

Can be driven by 1.5V logic

77m at V

2A continuous current

Controlled 1 s turn-on rise-time

Fast 60ns turn-off fall time

Cellular phones

PDAs

MP3 players

Digital cameras

Notebook PCs

Barcode scanners

100m SC-70-6 Smart Load Switch

with Capacitive Load Discharge

MIC94060/94061

Load Switch Application

= 4.5V (typ)

Final

Level Shift

Slew Rate

Discharge

Control

Load

and

77m

MIC94061

200

MIC94060/94061

LOAD

Micrel

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