MIC5238
MIC5238 is Ultra-Low Quiescent Current/ 150mA Cap LDO Regulator manufactured by Micrel Semiconductor.
Ultra-Low Quiescent Current, 150m A µCap LDO Regulator
General Description
The MIC5238 is an ultra-low voltage output, 150m A LDO regulator. Designed to operate in a single supply or dual supply mode, the MIC5238 consumes only 23µA of bias current, improving efficiency. When operating in the dual supply mode, the efficiency greatly improves as the higher voltage supply is only required to supply the 23µA bias current while the output and base drive es off of the much lower input supply voltage.
As a µCap regulator, the MIC5238 operates with a 2.2µF ceramic capacitor on the output, offering a smaller overall solution. It also incorporates a logic-level enable pin that allows the MIC5238 to be put into a zero off-current mode when disabled.
The MIC5238 is fully protected with current limit and thermal shutdown. It is offered in the Itty Bitty® SOT-23-5 package with an operating junction temperature range of
- 40°C to +125°C.
Data sheets and support documentation can be found on Micrel’s web site at: .micrel..
Features
- Ultra-low input voltage range:1.5V to 6V
- Ultra-low output voltage:1.0V minimum output voltage
- Low dropout voltage: 310m V at 150m A
- High output accuracy: ±2.0% over temperature
- µCap: stable with ceramic or tantalum capacitors
- Excellent line and load regulation specifications
- Zero shutdown current
- Reverse leakage protection
- Thermal shutdown and current limit protection
- Itty Bitty® SOT-23-5 package
Applications
- PDAs and pocket PCs
- Cellular phones
- Battery powered systems
- Low power microprocessor power supplies
Typical Application
Ultra-Low Voltage Application
Itty Bitty is a registered trademark of Micrel, Inc.
Micrel Inc.
- 2180 Fortune Drive
- San Jose, CA 95131
-...
