MPQ3432 Synchronous Boost Converters

Monolithic Power Systems (MPS) MPQ3432 Synchronous Boost Converters support up to 20W of load power from a single-cell battery with integrated low R_DS(ON) power MOSFETs. These converters start-up from an input voltage (V_IN) as low as 2.7V and adopt Constant-Off-Time (COT) control to provide a fast transient response. The MPQ3432 boost converters feature configurable switch peak current limit, 600kHz fixed switching frequency (f_SW), and external soft start and compensation pins. The configurable current limit provides accurate overload protection. The MODE pin allows the user to select Pulse-Skip Mode (PSM), Forced Continuous Conduction Mode (FCCM), or Ultrasonic Mode (USM) under light-load conditions. These boost converters offer various protection features, including configurable input Under-Voltage Lockout (UVLO) and Over-Temperature Protection (OTP). The MPQ3432 boost converters operate within the -40°C to 125°C temperature range and are available in a QFN-13 (3mm x 4mm) package. Typical applications include automotive boost, supercapacitors, and backup batteries.