MIC37500(2002) 查看數據表（PDF） - Micrel
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MIC37500 Datasheet PDF : 8 Pages
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MIC37500/37501/37502
Micrel
MIC37500/37501/37502
5A, Low Voltage µCap LDO Regulator
Advance Information
General Description
The Micrel MIC37500/01/02 is a 5A low-dropout linear volt-
age regulator that provides a low voltage, high current output
with a minimum of external components. It offers high preci-
sion, ultra low dropout (500mV), and low ground current.
The MIC37500/01/02 operates from an input of 2.3V 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 fixed and adjustable output voltages. Fixed
voltages include 1.5V. The adjustable version is capable of
1.24V to 5.5V.
Features of the MIC37500/01/02 LDO include thermal and
current limit protection, and reverse current & reverse battery
protection. Logic enable and error flag pins are available.
Junction temperature range of the MIC37500/01/02 is from
–40°C to 125°C.
For applications requiring input voltage greater than 6.0V,
see MIC3910x, MIC3915x, MIC3930x, and MIC3950x LDOs.
Features
• 5A minimum guaranteed output current
• 500mV maximum dropout voltage
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:
VIN: 2.3V to 6.0V
• ±1.0% initial output tolerance
• Fixed and adjustable output voltages
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• Low profile S-Pak package
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
VIN = 3.0V
CIN
MIC37500
VIN
VOUT
VIN
VOUT
VEN
FLG
GND
100k
VOUT = 2.5V
COUT
100µF, Ceramic
Fixed 2.5V Regulator with Error Flag
VIN
CIN
MIC37502
VIN
VOUT
VIN
VOUT
VEN
ADJ
GND
1.3V
R1
COUT
100µF, Ceramic
R2
Adjustable Regulator
SuperSwitcher is a trademark of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
January 2002
1
MIC37500/37501/37502
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