MIC2009YMLTR Micrel Semiconductor, MIC2009YMLTR Datasheet

MIC2009YMLTR

Manufacturer Part Number

MIC2009YMLTR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2009YM6TR.pdf (18 pages)

Specifications of MIC2009YMLTR

Date_code

06+

Packing_info

22-06L

Current page: 1 of 18
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General Description

The MIC2009 and MIC2019 are current limiting, high-

side power switches, designed for general purpose

power distribution and control in PCs, PDAs, printers

and other self-powered systems.

The MIC2009 and MIC2019’s primary functions are

current limiting and power switching. They are thermally

protected and will shutdown should their internal

temperature reach unsafe levels. This protects both the

device and the load under high current or fault

conditions.

Features include: fault reporting, with fault blanking to

eliminate noise-induced false alarms; output slew rate

limiting and under voltage detection. Both devices offer

user programmable current limiting thereby providing

designers a continuous spectrum of current limits from

200mA to 2 Amps.

The MIC2019 offers a unique new feature: Kickstart

which allows momentary high current surges to pass

unrestricted without sacrificing overall system safety.

The MIC2009 and MIC2019 are excellent choices for

USB and IEEE 1394 (FireWire) applications or for any

system where current limiting and power control are

desired.

The MIC2009 and MIC2019 are offered in space saving

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

Typical Application

September 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

Figure 1. Typical Application Circuit

™

Features

• 70mΩ typical on-resistance

• 2.5V - 5.5V operating range

• User adjustable current limit: 0.2A – 2.0A

• Kickstart

• Fault status flag

• Fault masking: prevents nuisance alarms on current

• Thermal Protection

• Under voltage lock-out

• Built-in slew rate control

• Low quiescent current

Applications

• USB / IEEE 1394 Power Distribution

• Desktop and Laptop PCs

• Set top boxes

• Game consoles

• PDAs

• Printers

• Docking stations

• Chargers

surges or hot plug events

Power Distribution Switch

Adjustable Current Limit

™

MIC2009/2019

(408) 955-1690

M9999-092305

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