EVQ4436-R-01A

EVQ4436-R-01A is an evaluation board designed to demonstrate the capabilities of MPQ4436-AEC1, MPQ4436, and MP4436. The MPQ4436 is a configurable-frequency, synchronous, step-down switching regulator with an integrated, internal HS-MOSFET and LS-MOSFET. It provides up to 6A of highly efficient output current, with current mode control for fast loop response. The wide 3.3 to 45V input voltage range accommodates a variety of step-down applications in an automotive input environment. A 1.7µA quiescent current in shutdown mode allows the part 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 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.

• 6A continuous output current (IOUT)
• 18μA quiescent current (IQ) in sleep mode
• Internal 48mohm high-side MOSFET (HS-FET) and 20mohm low-side MOSFET (LS-FET)
• 350KHz to 530KHz configurable switching frequency for car battery applications
• Synchronizable to an external clock
• Multi-phase capability, out-of-phase synchronized clock output
• Symmetric VIN for Low EMI
• Power good (PG) output, external soft start (SS), 100ns minimum on time (tON)
• Selectable advanced asynchronous modulation mode or forced continuous conduction mode
• Low-dropout mode, over-current protection (OCP) with hiccup mode