MIC5231 Datasheet | Micrel Semiconductor

Micrel Micropower µCap LDO Regulator Preliminary Information General Description The MIC5231 µCap low-dropout voltage regulator is intended for low-output-current biasing applications. It Features extremely low ground current, not greater than 4µA under all load and temperature conditions, making it efficient and ideal for keep-alive applications in devices such as notebook puters. The MIC5231 offers better than 2% initial accuracy and low dropout (typically 150m V at 10m A output current). An output capacitor is not required for stable operation, decreasing cost and board space. Tiny ceramic chip capacitors may be used to improve transient response. The MIC5231 also Features a control pin which allows the regulator to be shut down when not required. Its shutdownstate draws zero current, benefitting battery-powered applications. The MIC5231 is available in fixed output voltages of 2.75V, 3.0V, 3.3V and 5V in the small SOT-23-5 Itty Bitty™ package. Contact Micrel for other voltage options. Features - - - - - - - - - - - - - - - - Extremely low quiescent current- only 0.65µA No output capacitor requirement Stable with ceramic or tantalum capacitors Itty Bitty™ SOT-23-5 surface-mount package 10m A output drive Low 150m V at 10m A dropout voltage Tight load and line regulation Low temperature coefficient Logic-level enable input Real time clocks SRAM backup Cellular telephones Laptop, notebook and palmtop puters Battery-powered equipment Bar code scanners SMPS post-regulator and dc-to-dc modules Applications Ordering Information Part Number MIC5231-2.75BM5 MIC5231-3.0BM5 MIC5231-3.3BM5 MIC5231-5.0BM5 Marking LM2H LM30 LM33 LM50 Voltage 2.75V 3.0V 3.3V 5.0V Temperature Range - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C Package SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 Typical Application MIC5231-5.0BM5 VIN 6V IN EN GND OUT VOUT 5V 5V Linear Regulator Application Itty Bitty is a trademark of Micrel, Inc. MICREL INC. 1849 FORTUNE DRIVE...