MIC2004-1.2YMLTR Micrel Semiconductor, MIC2004-1.2YMLTR Datasheet

MIC2004-1.2YMLTR

Manufacturer Part Number

MIC2004-1.2YMLTR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2004-0.5YM5TR.pdf (16 pages)

Specifications of MIC2004-1.2YMLTR

Date_code

06+

Packing_info

22D-06L

Current page: 1 of 16
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General Description

MIC2004 and MIC2014 are current limiting, high-side

power switches, designed for general purpose power

distribution and control in PCs, PDAs, printers and other

self-powered systems.

MIC2004 and MIC2014’s primary functions are current

limiting and power switching. They 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. MIC2004/2014 feature a load discharge FET

which ensures any output capacitance is discharged

when the switch is turned off. This is particularly useful

in hot-swapping applications where ‘cold’ connections

are desired.

Both devices are fully self-contained, with the current

limit value being factory set to one of several convenient

levels.

MIC2014 offers a unique new feature: Kickstart

which allows momentary high current surges to pass

unrestricted without sacrificing overall system safety.

MIC2004 and MIC2014 are excellent choices for USB

and IEEE 1394 (FireWire) applications or for any system

where current limiting and power control are desired.

The MIC2004 and MIC2014 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.

Typical Application

August 2005

_________________________________________________________________________________________________________

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

5V Supply

Controller

Figure 1. Typical Application Circuit

USB

VIN

ENABLE

™

MIC2004

MIC2014

VOUT

Features

• 70mΩ typical on-resistance

• 2.5V - 5.5V operating range

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

• Load discharge FET

• 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

GND

Power Distribution Switch

™

D+/D-

Fixed Current Limit

BUS

MIC2004/2014

USB

Port

(408) 955-1690

M9999-080305

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