描述 Description

The MP8720A is a fully integrated, high-frequency, synchronous, rectified, step-down switch-mode converter. It offers a very compact solution to achieve up to 10A of continuous output current (IOUT) with an adjustable current limit (CLM).

The MP8720A operates at high efficiency across a wide IOUT load range based on MPS’s proprietary switching loss reduction technology and internal low on resistance (RDS(ON)) power MOSFETs. Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop provides good load and line regulation.

Full protection features include over-current (OC) limiting, over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown.

The MP8720A requires a minimal number of external components, and is available in a QFN-16 (3mmx3mm) package.

特性 Features

? Non-Latch Over-Current Limit (OCL), Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), and Thermal Shutdown
? Selectable Work Mode (PFM or FCCM)
? Wide 4.5V to 28V Operating Input Voltage (VIN) Range
? 155μA Low Quiescent Current (IQ)
? 10A of Continuous Output Current (IOUT)
? Adjustable Current Limit (CLM)
? Configurable Switching Frequency (fSW): 700kHz and 1300kHz
? Configurable External and Internal 3V3 Power Supply
? Adaptive Constant-On-Time (COT) for Fast Transients
? Low On Resistance (RDS(ON)) Internal Power MOSFETs
? Stable with POSCAP and Ceramic Output Capacitors
? Internal Soft Start (SS)
? Output Discharge
? Available in a QFN-16 (3mmx3mm) Package
? Optimized Performance with MPS Inductor MPL-AY1050 Series