MIC5325_11 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – Low VIN/VOUT 400mA ULDO™ with Ultra-Low IQ

MIC5325
Low V_IN/V_OUT 400mA ULDO™
with Ultra-Low IQ
General Description
The MIC5325 is a high-performance, µCap, low-dropout
regulator, offering ultra-low operating current while
maintaining very fast transient response. The MIC5325
can source up to 400mA of output current and allows a low
input supply voltage source to increase system efficiency.
Ideal for battery operated applications; the MIC5325 offers
high accuracy, extremely low dropout voltage, and low
ground current at all load conditions. The MIC5325 can
also be put into a zero-off-mode current state, drawing
virtually no current when disabled.
The MIC5325 is available in fixed-output voltages in the
6-pin 2mm x 2mm Thin MLF^® leadless package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• Wide-input voltage range: 1.7V to 5.5V
• Stable with 1µF ceramic output capacitor
• Ultra-low-dropout voltage ULDO™ 110mV @ 400mA
• ±2% voltage accuracy over temperature
• Bias supply voltage range: 2.5V to 5.5V
• Ultra-low ground current 35µA typical
• 400mA maximum output current per LDO
• Very fast transient response
• Thermal-shutdown and current-limit protection
• Tiny 6-pin 2mm x 2mm Thin MLF^® package
Applications
• Low-power handheld devices
• Portable electronics
• GPS receivers
• Post regulator
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Typical Application
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
March 2011
M9999-030811-C