MICROCHIP MIC2800-G4SYML-TR

A high-performance power management IC, featuring three output voltages with maximum efficiency. Integrating a 2 MHz DC/DC converter with an LDO post-regulator, it gives two high-efficiency outputs with a second, 300 mA LDO for maximum flexibility. It features a LOWQ mode, reducing the total current draw while in this mode to less than 30 μA. In LOWQ mode, the output noise of the DC/DC converter is reduced to 75 μVRMS, significantly lower than other converters that use a PFM light load mode that can interfere with sensitive RF circuitry.

The DC/DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600 mA.

It operates with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost and it is available in various output voltage options in the 16-pin 3mm x 3mm QFN leadless package.

• 2.7V to 5.5V Input Voltage Range
• 2 MHz DC/DC Converter and Two LDOs
• Integrated Power-on Reset (POR) - Adjustable POR Delay Time
• LOWQ Mode - 30 μA Total IQ when in LOWQ Mode
• DC/DC Converter - Up to 600 mA of Output Current in PWM Mode - LOWQ Mode: NO RIPPLE Light Load Mode - 75 μVRMS Output Noise in LOWQ Mode - 2 MHz PWM Mode Operation - >90% Efficiency
• LDO1 Input Voltage Directly Connected to DC/DC Converter Output Voltage for Maximum Efficiency - Ideal for 1.8V to 1.5V Conversion - 300 mA Output Current from 1.8V Input - Output Voltage Down to 0.8V
• LDO2 – 300 mA Output Current Capable
• Thermal Shutdown Protection
• Current Limit Protection
• Simple, Leakage-Free Interfacing to Host MPU in Applications with Backup Power
• Tiny 16-Pin 3mm x 3mm QFN Package

• Embedded MPU and MCU Power
• Portable and Wearable Applications
• Low-Power RF Systems
• Backup Power Systems