MIC37300/01/02/03
3.0A, Low-Voltage Cap LDO Regulator
General Description Features
The Micrel MIC37300/01/02/03 is a 3.0A low-dropout 3.0A minimum guaranteed output current
linear voltage regulator that provides a low voltage, high
500mV maximum dropout voltage over temperature
current output with a minimum number of external
Ideal for 3.0V to 2.5V conversion
components. It offers high precision, ultra-low dropout
Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
(500mV over temperature), and low ground current.
Stable with ceramic or tantalum capacitor
The MIC37300/01/02/03 operates from an input of 2.25V
Wide input voltage range
to 6.0V. It is designed to drive digital circuits requiring low-
V : 2.25V to 6.0V
voltage at high currents (i.e., PLDs, DSP, microcontroller,
IN
etc.). It is available in xed and adjustable output voltages.
+1.0% initial output tolerance
Fixed voltages include 1.5V, 1.8V, 2.5V, and 3.3V. The
Fixed and adjustable output voltages:
adjustable version is capable of 1.24V to 5.5V.
MIC37300: 3-pin S-Pak xed voltages
Features of the MIC37300/01/02/03 LDO include thermal
MIC37301: 5-pin S-Pak or 8-pin ePad SOIC xed
and current-limit protection, and reverse-current protection.
voltages with ag
Logic enable and error ag pins are available on the 5-pin
MIC37302: 5-pin adjustable voltage
version.
MIC37303: 8-pin ePad SOIC, DFN adjustable voltage
Junction temperature range of the MIC37300/01/02/03 is
with flag
from 40C to +125C.
Excellent line and load regulation specications
For applications requiring input voltage greater than 6.0V,
Thermal-shutdown and current-limit protection
see the MIC3910x, MIC3915x, MIC3930x, and MIC3950x
Reverse-leakage protection
LDOs.
Low prole S-Pak package
Datasheets and support documentation are available on
Applications
Micrels website at: www.micrel.com.
LDO linear regulator for low-voltage digital IC
PC add-in cards
High-efciency linear power supplies
SMPS post regulator
Battery charger
Typical Application
Fixed 2.5 Regulator Adjustable Regulator
Super eta PNP is a registered trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC37300/01/02/03
Ordering Information
Part number
Junction
(1)
Enable Voltage Flag Temperature Package
RoHS Compliant /
Range
Pb-Free
(1)
MIC37300-1.5WR No 1.5V No 40C to +125C S-Pak-3
(1)
MIC37300-1.65WR No 1.65V No 40C to +125C S-Pak-3
(1)
MIC37300-1.8WR No 1.8V No 40C to +125C S-Pak-3
(1)
MIC37300-2.5WR No 2.5V No 40C to +125C S-Pak-3
(1)
MIC37300-3.3WR No 3.3V No 40C to +125C S-Pak-3
MIC37301-1.5YME Yes 1.5V Yes 40C to +125C ePad SOIC-8
(1)
MIC37301-1.5WR Yes 1.5V Yes 40C to +125C S-Pak-5
MIC37301-1.8YME Yes 1.8V Yes 40C to +125C ePad SOIC-8
(1)
MIC37301-1.8WR Yes 1.8V Yes 40C to +125C S-Pak-5
MIC37301-2.5YME Yes 2.5V Yes 40C to +125C ePad SOIC-8
(1)
MIC37301-2.5WR Yes 2.5V Yes 40C to +125C S-Pak-5
(1)
MIC37301-3.3WR Yes 3.3V Yes 40C to +125C S-Pak-5
(1)
MIC37302WR Yes ADJ No 40C to +125C S-Pak-5
(1)
MIC37302WU Yes ADJ No 40C to +125C TO-263-5
MIC37303YME Yes ADJ Yes 40C to +125C ePad SOIC-8
MIC37303YML Yes ADJ Yes 40C to +125C 3mm 3mm DFN
Note:
1. RoHS-compliant with high-melting solder exemption.
Revision 2.0
February 24, 2015 2