Download MPQ4371 Datasheet PDF
Monolithic Power Systems
MPQ4371
DESCRIPTION The MPQ4371 family of buck converters are configurable-frequency (200k Hz to 2.5MHz), synchronous, step-down switching regulators with integrated low on-resistance HS-FETs and LS-FETs. The family covers a 6A to 11A output current (IOUT) range and employs zero-delay PWM (ZDP™) control, an MPS-exclusive technology that delivers fast transient response while reducing external capacitor count. The wide 3.3V to 36V input voltage (VIN) range acmodates a variety of step-down applications in automotive input environment. A 1.8μA shutdown mode quiescent current allows use in battery-powered applications. High power conversion efficiency across the wide load range is achieved by scaling down the switching frequency (f SW) under light loads to reduce the switching and gate driving losses. An open-drain power good signal indicates when the output is within 94% to 106% of its nominal voltage. Frequency foldback prevents inductor current runaway during start-up. Thermal shutdown provides...