MIC94300

200mA Switch

with Ripple Blocker

™ Technology

Ripple Blocker is a trademark of Micrel, Inc

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

General Description

The MIC94300 is an integrated load switch that

incorporates

Micrel’s

Ripple

Blocker

™ active filter

technology. The MIC94300 provides high-frequency ripple

attenuation (switching noise rejection) for applications

where a switching noise cannot be tolerated by sensitive

downstream circuits such as in RF applications. A low-

voltage logic enable pin disconnects the pass element and

places the MIC94300 into a low current-shutdown state

when disabled.

The MIC94300 operates from an input voltage of 1.8V to

3.6V, allowing true load switching of low-voltage power

set at a fixed drop (typically 170mV) from the input voltage

independent of given load conditions and currents.

Packaged in a 0.88mm x 0.88mm 4-ball CSP or 4-pin

1.2mm x 1.6mm Thin MLF

junction operating temperature range of

−40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• 1.8V to 3.6V input voltage range

• Active noise rejection over a wide frequency band

−

>60dB from 40kHz to 5MHz

• Rated to 200mA output current

• Current-limit and thermal-limit protected

• Ultra-small 0.88mm x 0.88mm 4-ball CSP

• Logic-controlled enable pin

• −40°C to +125°C junction temperature range

Applications

• Smart phones

• Tablet PC/notebooks and webcams

• Digital still and video cameras

• Videoconferencing

• Bar-code scanners

• Global positioning systems

• Automotive and industrial applications

_________________________________________________________________________________________________

Typical Application

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07

FREQUENCY (Hz)

LOAD = 100mA

10

100

1K

10K

100K

1M

10M

February 2012

M9999-020312-A