Microchip | MIC5309-1.8YD6-TR

The MIC5309 Series of high performance, µCap low dropout regulator, offers ultra-low operating current while maintaining very fast transient response. The MIC5309 can source up to 300 mA of output current and can regulate down from a low input supply voltage to increase system efficiency.

The MIC5309 offers extremely low dropout voltage 100 mV typically @ 300 mA load, and low ground current at all load conditions (typically 23 µA). The MIC5309 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5309 is available in the 6-pin TSOT-23 for cost sensitive applications.

Features:

• Input voltage range: 1.7 V to 5.5 V
• Guaranteed 300 mA over temperature
• Ultra Low dropout voltage of 100 mV typical 300 mA
• High PSRR, up to 90 dB @ 1 kHz
• Output Voltage range: 0.8 V to 2.0 V
• Very low ground current – 23 µA under full load
• Bias supply voltage range: 2.5 V to 5.5 V
• Stable with 1 µF ceramic output capacitor
• 300 mA maximum output current at 1.7 V input voltage
• Very fast transient response – ideal for digital loads
• Thermal shutdown and current limit protection
• Cost effective 6-pin TSOT-23 package

Applications:

• Mobile Phones
• PDAs
• GPS Receivers
• Portable Electronics