ME3107 Power Management IC – Ultra-Low IQ Synchronous DC/DC Buck Converter | 2.7–5.5V, 0.2A, SOT23-5

The ME3107 is an ultra-low power Power Management IC featuring a synchronous DC/DC step-down (buck) converter optimized for battery-powered and always-on applications.
It supports a 2.7V to 5.5V input voltage range and provides a fixed output voltage from 1V to 4V.

Designed for extremely low power consumption, the ME3107 operates in PFM mode with a quiescent current as low as 0.76µA, making it ideal for wearable, IoT, and portable electronics where battery life is critical.
Its SOT23-5 package enables compact system design.

Key Specifications

• Input Voltage (VIN): 2.7V – 5.5V

• Output Voltage (VOUT): 1V – 4V (fixed options)

• Output Current (IOUT): Up to 0.2A

• Quiescent Current (IQ): 0.76µA (typ.)

• Operating Mode: Synchronous PFM

• Output Accuracy: ±2.5%

• Package: SOT23-5

Applications

• Wearable devices

• IoT sensor nodes

• Battery-powered electronics

• Always-on low-power systems

Features

• Ultra-low quiescent current

• Synchronous buck topology

• High efficiency at light load

• Compact SOT23-5 package

• Optimized for long battery life