MIC5335_08 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – Dual, High Performance 300mA μCap ULDO™

MIC5335
Dual, High Performance
300mA µCap ULDO™
General Description
The MIC5335 is a high current density, dual Ultra Low
Dropout (ULDO™) linear regulator. The MIC5335 is
ideally suited for portable electronics which demand
overall high performance in a very small form factor.
The MIC5335 is offered in the ultra small 1.6mm x
1.6mm x 0.55mm 6-ld Thin MLF^® package, which is
only 2.56mm² in area. The MIC5335 delivers
exceptional thermal performance for those
applications that demand higher power dissipation in
a very small foot print. In addition, the MIC5335
integrates two high performance 300mA LDOs with
independent enable functions and offers high PSRR
eliminating the need for a bypass capacitor.
The MIC5335 is a µCap design which enables
operation with very small output capacitors for
stability, thereby reducing required board space and
component cost.
The MIC5335 is available in fixed-output voltages.
Additional voltages are available. For more
information, contact Micrel’s Marketing department.
Data sheets and support documentation can be found
on Micrel’s web site at: www.micrel.com.
Features
• 2.3V to 5.5V input voltage range
• Ultra-low dropout voltage: 75mV at 300mA
• Ultra Small 1.6mm x 1.6mm x 0.55mm 6 lead MLF^®
package
• Independent enable pins
• High PSRR > 65dB @ 1kHz
• 300mA output current per LDO
• µCap Stable with 1µF ceramic capacitor
• Low quiescent current: 90µA/LDO
• Fast turn-on time: 30µs
• Thermal Shutdown Protection
• Current Limit Protection
Applications
• Mobile Phones
• PDAs
• GPS Receivers
• Portable electronics
• Portable media players
• Digital still and video cameras
Typical Application
ULDO is a trademark of Micrel, Inc.
MLF and MicroLead Frame are registered trademarks of Amkor Technologies.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
May 2008
M9999-051508