MIC35302 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – 3A, Low Voltage μCap LDO Regulator

MIC35302
3A, Low Voltage µCap LDO Regulator
General Description
The MIC35302 is a 3A low-dropout linear voltage regulator
that provides a low voltage, high current output with a
minimum of external components. It offers high precision,
ultra-low dropout (600mV over temperature), and low
ground current.
The MIC35302 operates from an input of 2.25V to 6.0V. It
is designed to drive digital circuits requiring low voltage at
high currents (i.e., PLDs, DSPs, micro-controllers, etc.),
providing an adjustable output voltage from 1.24V to 5.4V.
Features of the MIC35302 LDO include current limiting
and thermal protection, and reverse current and reverse
battery protection. Also logic (active-HIGH) enable pin is
included. The MIC35302 is available in a 5-pin power
D-Pak package (TO-252) with an operating temperature
range of –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• 3A minimum guaranteed output current
• 600mV maximum dropout voltage over temperature
– Ideal for 3.0V to 2.5V conversion
– Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
• Stable with ceramic or tantalum capacitor
• Wide input voltage range
– V_IN: 2.25V to 6.0V
• ±1.0% initial output tolerance
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• –40°C to +125°C junction temperature
• Power D-Pak package (TO-252)
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**
Adjustable Regulator Application
(*See Minimum Load Current Section)
Super βeta PNP is a registered trademark of Micrel, Inc.
**See Thermal Design Section
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
October 2009
M9999-102309-A