Microchip | MIC5316-GW3YMT-TR

The MIC5316 Series high performance, dual low input voltage, low dropout regulator with Power On Reset (POR) and voltage select. Major features include two 300 mA LDOs, input voltage down to 1.7 V, ultra low drop out of 85 mV at full load, Power on Reset, and voltage select. Each LDO has its own low voltage input for system flexibility.

The low input voltages and low drop out operation provides high efficiency by reducing the input to output voltage step which minimizes the regulator power loss. Voltage select is incorporated into the second output, which reduces the output voltage to further save power while in stand-by mode. An adjustable delay time POR output is provided for the second regulator for design flexibility. The MIC5316 offers 1% accuracy and low ground current to increase light load efficiency. The MIC5316 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5316 is available in fixed output voltages in the 12-pin 2.5 mm x 2.5 mm Thin MLF ® leadless package.

Features:

• 300 mA output current for each LDO
• Dual low voltage regulator inputs: 1.7 V to 5.5 V
• Low output voltage range: 0.8 V to 2.0 V
• Ultra-low dropout voltage of 85 mV @ 300 mA
• Voltage select function
• Power On Reset output with adjustable delay
• Stable with 1 µF ceramic output capacitors
• Very fast transient response
• Thermal shutdown and current limit protection
• Tiny 12-pin 2.5 mm x 2.5 mm Thin MLF ® package

Applications:

• Mobile Phones
• Digital cameras
• GPS, PDAs, PMP, handhelds
• Portable electronics