MIC5330 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – Dual, 300mA UCap LDO in 2mm x 2mm MLF

MIC5330
Dual, 300mA µCap LDO in 2mm x 2mm MLF^®
General Description
The MIC5330 is a tiny Dual Ultra Low-Dropout
(ULDO™) linear regulator ideally suited for portable
electronics due to its high power supply ripple
rejection (PSRR) and ultra low output noise. The
MIC5330 integrates two high-performance; 300mA
ULDOs into a tiny 2mm x 2mm leadless MLF^®
package, which provides exceptional thermal package
characteristics.
The MIC5330 is a µCap design which enables
operation with very small ceramic output capacitors
for stability, thereby reducing required board space
and component cost. The combination of extremely
low-drop-out voltage, high power supply rejection and
exceptional thermal package characteristics makes it
ideal for powering RF/noise sensitive circuitry, cellular
phone camera modules, imaging sensors for digital
still cameras, PDAs, MP3 players and WebCam
applications.
The MIC5330 ULDO™ is available in fixed-output
voltages in the tiny 8-pin 2mm x 2mm leadless MLF^®
package which occupies less than half the board area
of a single SOT-6 package. Additional voltage options
are available. For more information, contact Micrel
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 ULDO™ 75mV @ 300mA
• High PSRR - >70dB @ 1KHz
• Ultra-low output noise: 30µV_RMS
• ±2% initial output accuracy
• Tiny 8-pin 2mm x 2mm MLF^® leadless package
• Excellent Load/Line transient response
• Fast start-up time: 30µs
• 300mA output current per LDO
• Thermal shutdown protection
• Low quiescent current: 75µA per output
• Current limit protection
Applications
• Mobile phones
• PDAs
• GPS receivers
• Portable electronics
• Portable media players
• Digital still and video cameras
Typical Application
MIC5330-x.xYML
VIN VOUT 1
EN 1 VOUT 2
EN 2
1µF
BYP
GND
0.1µF
Rx/Synth
Tx
RF
1µF 1µF Transceiver
RF Power Supply Circuit
ULDO is a trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
August 2006
M9999-080306