MIC5239-3.3YM-TR LDO Voltage Regulator 500mA 30V Input SOT-223
Low quiescent current 23µA LDO regulator with 500mA output and 350mV dropout. Wide 2.3V to 30V input range, stable with ceramic capacitors. Features enable input, error flag, overcurrent and reverse battery protection. Ideal for automotive and industrial keepalive power.
MIC5239 Low Quiescent Current 500mA µCap LDO Regulator
General Description
The MIC5239 is a low quiescent current, µCap low-dropout regulator. With a maximum operating input voltage of 30V and a quiescent current of 23µA, it is ideal for supplying keepalive power in systems with high-voltage batteries. Capable of 500mA output, the MIC5239 has a dropout voltage of only 350mV. It can provide high output current for applications such as USB. As a µCap LDO, the MIC5239 is stable with either a ceramic or a tantalum output capacitor. It only requires a 3.3µF output capacitor for stability. The MIC5239 includes a logic compatible enable input and an undervoltage error flag indicator. Other features of the MIC5239 include thermal shutdown, current-limit, overvoltage shutdown, load-dump protection, reverse leakage protections, and reverse battery protection. Available in the thermally enhanced SOIC-8, MSOP-8 and SOT-223, the MIC5239 comes in fixed 3.0V and adjustable voltages. For other output voltages, contact Micrel.
Features
• Ultra-low quiescent current (IQ = 23µA @IO = 100µA)
• Continuious 500mA output current
• Wide input range: 2.3V to 30V
• Low dropout voltage: 350mV @500mA;
• ±1.0% initial output accuracy
• Stable with ceramic or tantalum output capacitor
• Logic compatible enable input
• Low output voltage error flag indicator
• Overcurrent protection
• Thermal shutdown
• Reverse-leakage protection
• Reverse-battery protection
• High-power SOIC-8, MSOP-8 and SOT-223 packages
Pin Configuration
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