MPM4730 2.8-22V 2.8V to 22V VIN, Max 1A, 4-Switch Integrated Buck-Boost Module LGA-18

MPM4730 2.8-22V 2.8V to 22V VIN, Max 1A, 4-Switch Integrated Buck-Boost Module LGA-18

The MPM4730 is a synchronous, four-switch integrated buck-boost module with a 2.8V to 22V input voltage (VIN) range.

Key Specifications

Features

• 2.8V to 22V Operating Input Voltage (VIN) Range
• 0.08V to 1.637V Reference Voltage (VREF) Range with 0.8mV Resolution via the I2C (1) (Default 1V VREF)
• Configurable Output Voltage (VOUT) via the FB Pin
• 1A Max Output Current (IOUT)
• 500kHz/750kHz Selectable Switching Frequency (fSW)
• Output Over-Voltage Protection (OVP) and Short-Circuit Protection (SCP) with Hiccup Mode
• Over-Temperature Warning (OTW) and Shutdown
• I2C Interface with ALT Pin
• One-Time Programmable (OTP) Non- Volatile Memory (NVM)
• I2C-Configurable Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode, Soft Start, Over-Current Protection (OCP), and OVP

Typical Application Circuit

Applications

• Server Power Supply Units (PSUs)

Design Notes

• Place the input capacitor across the module pins, not at the far end of a trace — the module's internal loop assumes a local source.
• Heat leaves through the module base and pins; the host board copper is part of the thermal solution.
• Measure output ripple with a short ground spring at the output pins; a long scope ground lead picks up switching noise that is not really there.
• For isolated variants, respect the creepage and clearance the safety standard demands across the isolation barrier.

Common Questions