MIC37252 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 2.5A, Low Voltage UCap LDO Regulator

MIC37252
Micrel
MIC37252
2.5A, Low Voltage µCap LDO Regulator
Final
General Description
The Micrel MIC37252 is a 2.5A low-dropout linear voltage
regulator that provides a low voltage, high current output with
a minimum of external components. It offers high precision,
low dropout and low ground current.
The MIC37252 operates from an input voltage of 3.0V to
6.0V. It is designed to drive digital circuits requiring low
voltage at high currents (i.e., PLDs, DSP, microcontroller,
etc.). It is available in an adjustable output voltage capable of
1.24V to 5.5V.
Features of the MIC37252 LDO include thermal and current
limit protection, and reverse current and reverse battery
protection.
Junction temperature range of the MIC37252 is from –40°C
to 125°C.
For higher currents see the MIC3730x family of LDOs.
Features
• 2.5A minimum guaranteed output current
• Ideal for 3.3V to 1.8V conversion
• Stable with ceramic or tantalum capacitor
• +2.0% initial output tolerance
• Dropout voltage = 550mV @ 2.5A
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• S-Pak and TO-263 packages
Applications
• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High efficiency linear power supplies
• SMPS post regulator
• Battery charger
Typical Application
3.3V
C_IN
MIC37252
VIN
VOUT
R1
VEN
ADJ
GND
R2
1.8V
C_OUT
47µF, Ceramic
Adjustable Regulator
SuperSwitcher and Super βeta PNP are trademarks of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
January 2003
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MIC37252