MONOLITHIC POWER SYSTEMS (MPS) MPM4730GPQ-0000-Z DC-DC Switching Synchronous Buck-Boost Regulator, 2.8 to 22 V In, 1 to 20.47 V/1 A Out, EC LGA-18

MPM4730GPQ-0000-Z is a synchronous, four-switch integrated buck-boost module with a 2.8V to 22V input voltage (VIN) range. The device regulates the output voltage (VOUT) with high efficiency, and provides integrated VOUT scaling and output current (IOUT) limit functions. It uses constant-on-time (COT) control in buck mode and constant-off-time control in boost mode, providing a fast load transient response and smooth buck-boost mode transients. The MPM4730 features automatic pulse-frequency modulation (PFM)/pulse-width modulation (PWM) or forced PWM switching modes. It also provides a selectable switching frequency (fSW) and configurable soft start. Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown. Application includes server power supply units (PSUs), buck-boost bus supplies.

• Configurable output voltage (VOUT) via the FB pin
• 1A max output current (IOUT), I²C interface with ALT pin
• One-time programmable (OTP) non volatile memory (NVM)
• Configurable EN shutdown discharge
• Quiescent supply current is 1mA typ (non-switching, I²C sets PFM mode)
• Feedback voltage is 1000mV typ (TJ = 25°C)
• Oscillator frequency is 520KHz typ (set FREQ = 500KHz via I²C, TJ = 25°C)
• Soft-start time is 3.5ms typ (can be changed by I²C, VREF from 0V to 1V)
• ECLGA-18 package, operating junction temperature range from -40°C to +125°C

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.