MIC5212

MIC5212 Micrel MIC5212 Dual 500mA LDO Regulator Final General Description The MIC5212 is a dual linear voltage regulator with very-low dropout voltage (typically 10mV at light loads and 350mV at 500mA), very-low ground current (225µA at 10mA output), and better than 1% initial accuracy. Both regulator outputs can supply up to 500mA at the same time as long as each regulator’s maximum junction temperature is not exceeded. Key features include current limiting, overtemperature shutdown, and protection against reversed battery. The MIC5212 is available in a fixed 3.3V/2.5V output voltage configuration. Other voltages are available; contact Micrel for details. Features Fused lead frame SOIC-8 Up to 500mA per regulator output Low quiescent current Low dropout voltage Tight load and line regulation Low temperature coefficient Current and thermal limiting Reversed input polarity protection Hard disk drives CD R/W Bar code scanners SMPS post regulator/DC-to-DC modules High-efficiency linear power supplies Applications Ordering Information Part Number MIC5212-SJBM Voltage 3.3V/2.5V Accuracy 1.0% Junction Temp. Range* –40°C to +125°C Package 8-lead SOIC Other voltages available. Contact Micrel for details. Typical Application MIC5212-SJBM IN = 5V 4.7µF INA OUTA INB OUTB GND VO2 = 2.5V 4.7µF 4.7µF VO1 = 3.3V 3.3V/2.5V Dual LDO Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.mi...