MIC5295_09 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – Low Quiescent Current, 150mA LDO Regulator

MIC5295
Low Quiescent Current, 150mA LDO
Regulator
General Description
The MIC5295 is a 150mA highly accurate, low dropout
regulator with high input voltage and low ground current.
This combination of high voltage and low ground current
makes the MIC5295 ideal for USB and portable electronics
applications, using 1-cell, 2-cell or 3-cell Li-Ion battery
inputs.
A µCap LDO design, the MIC5295 is stable with either a
ceramic or tantalum output capacitor. It only requires a
2.2µF capacitor for stability.
Features of the MIC5295 includes enable input, thermal
shutdown, current limit, reverse battery protection, and
reverse leakage protection.
Available in fixed and adjustable output voltage versions,
the MIC5295 is offered in the TO-252-5 (D-Pak) package
with a junction temperature range of –40°C to +125°C.
Features
• Wide input voltage range: 2.3V to 24V
• Ultra low ground current: 18µA
• Low dropout voltage: 300mV at 150mA
• High initial output accuracy: ±1.0%
• Stable with ceramic or tantalum capacitors
• Excellent line and load regulation specifications
• Reverse battery protection
• Reverse leakage protection
• Thermal shutdown and current limit protection
• PowerTO-252-5 (D-Pak)package
• Adjustable output from 1.24V-20V
Applications
• USB power supply
• Cellular phones
• Keep-alive supply in notebook and portable computers
• Logic supply for high-voltage batteries
• Automotive electronics
• Battery powered systems
Typical Application
Low Current Adjustable Regulator Application
100
90
80
70
60
50
40
30
20
10
0
4
Ground Current
v s. Input Voltage
10mA
100µA
8
12
16
20
24
INPUT VOLT AGE (V)
Ground Current vs. Input Voltage
IttyBitty is a registered trademark of Micrel, Inc
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
November 2009
M9999-110209-A