MIC5320_11 Datasheet, PDF (1/13 Pages) Micrel Semiconductor – High-Performance Dual 150mA μCap ULDO™

MIC5320
High-Performance Dual 150mA
µCap ULDO™
General Description
The MIC5320 is a tiny Dual Ultra Low-Dropout
(ULDO™) linear regulator ideally suited for portable
electronics. It’s ideal for today’s most demanding
ultra-thin portable applications including mobile
phones, camera modules, imaging sensors for digital
still and video cameras, PDAs, portable media players
(PMP) and PC cameras. The MIC5320 integrates two
high-performance, 150mA ULDOs into a tiny 6-pin
1.6mm x 1.6mm leadless Thin MLF^® package, which
provides exceptional thermal package characteristics.
The MIC5320 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-dropout voltage, fast transient response and
exceptional thermal package characteristics makes it
ideal for portable electronics.
The MIC5320 ULDO™ is available in fixed-output
voltages in the tiny 6-pin 1.6mm x 1.6mm leadless
Thin MLF^® package which is only 2.56mm² in area,
less than 30% the area of the SOT-23, TSOP and
MLF^® 3x3 packages. It’s also available in the thin
SOT-23-6 lead package and the standard 6-pin
1.6mm x 1.6mm leadless package. Additional voltage
options are available. For more information, contact
Micrel marketing department.
Data sheets and supporting 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™ 35mV @
150mA
• Tiny 6-pin 1.6mm x 1.6mm Thin MLF^® leadless
package
• Low-cost TSOT-23-6 package
• Independent enable pins
• 150mA output current per LDO
• µCap stable with 1µF ceramic capacitor
• Low quiescent current – 85µA per output
• 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
MIC5320-x.xYMT
VIN VOUT 1
VOUT 1
EN 1 VOUT 2
VOUT 2
EN 2
1µF
GND
1µF 1µF
Typical Application Circuit
ULDO is a trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
February 2011
M9999-021111-H