MIC2003/2013

Current Limiting Circuit Protector

Kickstart is a trademark of Micrel, Inc

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

General Description

MIC2003 and MIC2013 are high-side current limiting

devices, designed for power distribution applications in

PCs, PDAs, printers and peripheral devices.

MIC2003 and MIC2013 are thermally protected and will

shutdown should their internal temperature reach unsafe

levels, protecting both the device and the load, under

high current or fault conditions. Both devices are fully

self-contained, with the current limit value being factory

set to one of several convenient levels.

MIC2013 offers a unique new feature: Kickstart

which allows momentary high current surges to pass

unrestricted without sacrificing overall system safety.

MIC2003 and MIC2013 are excellent choices for USB

and IEEE 1394 (FireWire) applications or for any system

where current limiting and power control are desired.

The MIC2003 and MIC2013 are offered in space saving

6 pin SOT-23 and 2mm x 2mm MLF packages.

Data sheets and support documentation can be found

on Micrel’s web site at www.micrel.com.

Features

• 70mΩ typical on-resistance

• 2.5V - 5.5V operating range

• Pre-set current limit values of 0.5A, 0.8A and 1.2A

• Kickstart

™

• Thermal Protection

• Under voltage lock-out

• Low quiescent current

Applications

• USB / IEEE 1394 Power Distribution

• Desktop and Laptop PCs

• Set top boxes

• Game consoles

• PDAs

• Printers

• Docking stations

• Chargers

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Typical Application

Figure 1. Typical Application Circuit

October 2005

M9999-xxxx04

(408) 955-1690