EVQ4314-R-01A

EVQ4314-R-01A is an evaluation board designed to demonstrate the capabilities of the MPQ4314, a synchronous, step-down switching regulator with a configurable frequency, as well as an integrated, internal high-side MOSFET and low-side MOSFET. It can provide up to 4A of highly efficient output current, with current mode control for fast loop response. The wide 3.3V to 45V input voltage range accommodates a variety of step-down applications in automotive input environments. A 1.7μA quiescent current in shutdown mode allows the device to be used in battery-powered applications. High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency under light-load conditions to reduce switching and gate driver losses. Frequency foldback prevents inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. A high duty cycle and low-dropout mode are provided for automotive cold crank conditions.

• 18μA sleep mode quiescent current (IQ)
• Internal 48mohm HS-FET and 20mohm LS-FET
• 350kHz to 1000kHz configurable switching frequency (fSW) for car battery applications
• Can be synchronized to an external clock
• Out-of-phase synchronized clock output
• Frequency Spread Spectrum (FSS) for low EMI
• Symmetric VIN for low EMI, Power Good (PG) output, external soft start (SS)
• Selectable advanced asynchronous modulation (AAM) mode or forced continuous conduction mode (FCCM)
• Over-current protection (OCP) with hiccup mode

附註

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