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  Microchip Technology Semiconductor Electronic Components Datasheet  

MIC39101 Datasheet

Low Dropout Regulator

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MIC39100/1/2
1A, Low Voltage, Low Dropout Regulator
with Reversed-Battery Protection
Features
• Fixed and Adjustable Output Voltages to 1.24V
• 410 mV Typical Dropout at 1A Load
- Best Recommended for 3.0V to 2.5V Conver-
sion
- Best Recommended for 2.5V to 1.8V Conver-
sion
• 1A Minimum Guaranteed Output Current
• 1% Initial Accuracy
• Low Ground Current
• Current-Limiting and Thermal-Shutdown
Protection
• Reversed-Battery and Reversed-Leakage
Protection
• Fast Transient Response
• Low Prole SOT-223 Package
• Power SO-8 Package
Applications
• LDO Linear Regulator for PC Add-In Cards
• High-Efciency Linear Power Supplies
• SMPS Post Regulator
• Multimedia and PC Processor Supplies
• Battery Chargers
• Low Voltage Microcontrollers and Digital Logic
General Description
The MIC39100, MIC39101, and MIC39102 are 1A low
dropout linear voltage regulators that provide low
voltage, high current output from an extremely small
package. The MIC39100/1/2 offers extremely low
dropout (typically 410 mV at 1A) and low ground
current (typically 11 mA at 1A).
The MIC39100 is a xed output regulator offered in the
SOT-223 package. The MIC39101 and MIC39102 are
xed and adjustable regulators, respectively, in a
thermally enhanced 8-lead SOIC package.
The MIC39100/1/2 is ideal for PC add-in cards that
need to convert from standard 5V to 3.3V, 3.3V to 2.5V,
or 2.5V to 1.8V. A guaranteed maximum dropout
voltage of 630 mV over all operating conditions allows
the MIC39100/1/2 to provide 2.5V from a supply as low
as 3.13V and 1.8V from a supply as low as 2.43V.
The MIC39100/1/2 is fully protected with overcurrent
limiting, thermal-shutdown, and reverse-battery
protection. Fixed voltages of 5.0V, 3.3V, 2.5V, and 1.8V
are available on MIC39100/1 with adjustable output
voltages to 1.24V on MIC39102.
Package Types
MIC39100-XX (FIXED)
SOT-223 (S)
(Top View)
GND
TAB
12 3
IN GND OUT
MIC39101-XX (FIXED)
SOIC-8 (M)
(Top View)
MIC39102 (ADJ.)
SOIC-8 (M)
(Top View)
EN 1
IN 2
OUT 3
FLG 4
8 GND
7 GND
6 GND
5 GND
EN 1
IN 2
OUT 3
ADJ 4
8 GND
7 GND
6 GND
5 GND
2017 Microchip Technology Inc.
DS20005834A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MIC39101 Datasheet

Low Dropout Regulator

No Preview Available !

MIC39100/1/2
Typical Application Circuits
2.5V/1A Regulator
VIN
3.3V
MIC39100
IN
OUT
2.5V
GND
10μF
TANTALUM
2.5V/1A Regulator with Error Flag
VIN
3.3V
ENABLE
SHUTDOWN
100kŸ
MIC39101
IN OUT
EN FLG
GND
ERROR FLAG
OUTPUT
2.5V
R1
10μF
TANTALUM
1.5V/1A Adjustable Regulator
VIN
2.5V
ENABLE
SHUTDOWN
MIC39102
IN OUT
EN ADJ
GND
1.5V
R1
R2 10μF
TANTALUM
DS20005834A-page 2
2017 Microchip Technology Inc.


Part Number MIC39101
Description Low Dropout Regulator
Maker Microchip
Total Page 24 Pages
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