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MIC29371-3.3WUTR

Description
3.3V FIXED POSITIVE LDO REGULATOR, 0.75V DROPOUT, PSSO5, ROHS COMPLIANT, TO-263, 5 PIN
CategoryPower/power management    The power supply circuit   
File Size252KB,12 Pages
ManufacturerMicrel ( Microchip )
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric View All

MIC29371-3.3WUTR Overview

3.3V FIXED POSITIVE LDO REGULATOR, 0.75V DROPOUT, PSSO5, ROHS COMPLIANT, TO-263, 5 PIN

MIC29371-3.3WUTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrel ( Microchip )
Parts packaging codeD2PAK
package instructionTO-263,
Contacts4
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum drop-back voltage 10.75 V
Maximum input voltage26 V
Minimum input voltage4.3 V
JESD-30 codeR-PSSO-G5
JESD-609 codee3
length10.363 mm
Humidity sensitivity level3
Number of functions1
Number of terminals5
Working temperatureTJ-Max125 °C
Working temperature TJ-Min-40 °C
Maximum output current 10.75 A
Maximum output voltage 13.366 V
Minimum output voltage 13.234 V
Nominal output voltage 13.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)245
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height4.902 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.7 mm
Terminal locationSINGLE
Maximum time at peak reflow temperature40
width8.7755 mm
MIC2937A/29371/29372
Micrel, Inc.
MIC2937A/29371/29372
750mA Low-Dropout Voltage Regulator
General Description
The MIC2937A family are “bulletproof” efficient voltage regu-
lators with very low dropout voltage (typically 40mV at light
loads and 300mV at 500mA), and very low quiescent current
(160µA typical). The quiescent current of the MIC2937A in-
creases only slightly in dropout, thus prolonging battery life.
Key MIC2937A features include protection against reversed
battery, fold-back current limiting, and automotive “load dump”
protection (60V positive transient).
The MIC2937 is available in several configurations. The
MIC2937A-xx devices are three pin fixed voltage regulators
with 3.3V, 5V, and 12V outputs available. The MIC29371 is
a fixed regulator offering logic compatible ON/OFF switching
input and an error flag output. This flag may also be used as
a power-on reset signal. A logic-compatible shutdown input
is provided on the adjustable MIC29372, which enables the
regulator to be switched on and off.
Features
High output voltage accuracy
Guaranteed 750mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Input can withstand –20V reverse battery and +60V posi-
tive transients
Error flag warns of output dropout
Logic-controlled electronic shutdown
Output programmable from 1.24V to 26V(MIC29372)
Available in TO-220, TO-263, TO-220-5, and TO-263-5
packages.
Battery Powered Equipment
Cellular Telephones
Laptop, Notebook, and Palmtop Computers
PCMCIA V
CC
and V
PP
Regulation/Switching
Bar Code Scanners
Automotive Electronics
SMPS Post-Regulator/ DC to DC Modules
High Efficiency Linear Power Supplies
Applications
Pin Configuration
INPUT GROUND OUTPUT
TO-263 Package
(MIC2937A-xxBU/WU)
Five Lead Package Pin Functions:
MIC29371 MIC29372
1) Error
Adjust
2) Input
Shutdown
3) Ground
Ground
4) Output
Input
5) Shutdown Output
TO-263-5 Package
(MIC29371/29372BU/WU)
1 2 3
1 2 3 4 5
INPUT GROUND OUTPUT
TO-220 Package
(MIC2937A-xxBT/WT)
1 2 3
1 2 3 4 5
TO-220-5 Package
(MIC29371/29372BT/WT)
The TAB is Ground on the TO-220 and TO-263 packages.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
May 2006
1
MIC2937A/29371/29372
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