MIC5253 Datasheet | Micrel Semiconductor

Micrel 100m A Low Noise µCap Teeny™ LDO General Description The MIC5253 is an efficient, CMOS voltage regulator optimized for ultra-low-noise applications. It offers 1.5% initial accuracy, extremely low dropout voltage (165m V at 100m A), and low ground current (typically 95µA at full load). The MIC5253 provides a very low noise output, ideal for RF applications where a clean voltage source is required. A noise bypass pin is also available for further reduction of output noise. Designed specifically for handheld and battery-powered devices, the MIC5253 provides a TTL-logic-patible enable pin. When disabled, power consumption drops nearly to zero. The MIC5253 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices. Available in the Teeny™ SC-70-5 package, the MIC5253 offers a wide range of output voltages. Key Features include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turn-off. Features - - - - - - - Input voltage range: 2.7V to 5.5V Teeny™ SC-70-5 package Ultra-low output noise: 30µV(rms) 100m A continuous output current, 150m A peak current Stability with ceramic output capacitors Ultralow dropout: 165m V @ 100m A High output accuracy: 1.5% initial accuracy 3.0% over temperature Low ground current: 95µA TTL-Logic-controlled enable input “Zero” off-mode current Thermal shutdown and current limit protection - - - - Applications - - - - - Cellular phones and pagers Cellular accessories Battery-powered equipment Laptop, notebook, and palmtop puters Consumer/personal electronics Ordering Information Part Number MIC5253-1.8BC5 MIC5253-1.85BC5 MIC5253-2.6BC5 MIC5253-2.9BC5 MIC5253-3.0BC5 MIC5253-3.3BC5 Marking LCN L71J LCP L729 LCG L733 Voltage 1.8V 1.85V 2.6V 2.9V 3.0V 3.3V Junction Temp. Range- - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C Package...