ME3123 Power Management IC – 3A Synchronous DC/DC Buck Converter | 4.7–40V, 500kHz, ESOP8

The ME3123 is a wide-input synchronous DC/DC step-down (buck) converter optimized for efficient power delivery in industrial and embedded systems.
It supports a 4.7V to 40V input voltage range and offers an adjustable output voltage from 0.6V to 12V using a 0.6V feedback reference.

Operating in PFM/PWM mode, the ME3123 delivers up to 3A output current with low quiescent current of 135µA and ±2% output accuracy.
Its 500kHz switching frequency provides a balance between efficiency and EMI performance.

Key Specifications

• Input Voltage (VIN): 4.7V – 40V

• Output Voltage (VOUT): Adjustable (0.6V – 12V, VFB = 0.6V)

• Output Current (IOUT): Up to 3A

• Quiescent Current (IQ): 135µA

• Switching Frequency (FOSC): 500kHz

• Operating Mode: Synchronous PFM / PWM

• Output Accuracy: ±2%

• Package: ESOP8

Applications

• Industrial DC/DC modules

• Embedded systems

• Communication equipment

• Distributed power architectures

Features

• Wide input voltage range up to 40V

• High-efficiency synchronous architecture

• Low standby power consumption

• High output current capability

• ESOP8 package for thermal performance