MIC5233-3.3YS Datasheet, PDF (1/12 Pages) Micrel Semiconductor – High Input Voltage Low IQ μCap LDO Regulator

MIC5233
High Input Voltage
Low IQ µCap LDO Regulator
General Description
Features
The MIC5233 is a 100mA highly accurate, low dropout
regulator with high input voltage and ultra-low ground
current. This combination of high voltage and low ground
current makes the MIC5233 ideal for multi-cell Li-Ion
battery systems.
A µCap LDO design, the MIC5233 is stable with either
ceramic or tantalum output capacitor. It only requires a
2.2µF capacitor for stability.
Features of the MIC5233 include enable input, thermal-
shutdown, current-limit, reverse-battery protection, and
reverse-leakage protection.
Available in fixed and adjustable output voltage versions,
the MIC5233 is offered in the IttyBitty^® SOT-23-5 and
SOT223-3 package with a junction temperature range of
−40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
• Wide input voltage range: 2.3V to 36V
• Ultra-low ground current: 18µA
• Low dropout voltage of 270mV at 100mA
• High output accuracy of ±2.0% over temperature
• µCap: stable with ceramic or tantalum capacitors
• Excellent line and load regulation specifications
• Zero shutdown current
• Reverse-battery protection
• Reverse-leakage protection
• Thermal-shutdown and current-limit protection
• IttyBitty^® SOT-23-5 and SOT-223-3 packages
Applications
• Keep-alive supply in notebook and portable computers
• USB power supply
• Logic supply for high-voltage batteries
• Automotive electronics
• Battery-powered systems
• 3 − 4 cell Li-Ion battery input range
_________________________________________________________________________________________________________________________
Typical Application
Ultra-Low Current Adjustable Regulator Application
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
July 2012
M9999-071212-B