EVQ4315-R-01A

EVQ4315-R-01A evaluation board is designed to demonstrate the capabilities of the MPQ4315, a synchronous, step-down switching converter with a configurable frequency and integrated, internal high-side MOSFET and low-side MOSFET. It provides up to 5A of highly efficient output current (IOUT), 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 the switching and gate driver losses. Frequency foldback helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High duty cycle and low-dropout (LDO) 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