EVB_RT7285CGJ6

RT7285CGJ6 Evaluation Board your power partner. RT7285CGJ6 Evaluation Board Purpose The RT7285C is a synchronous step-down converter with Advanced Constant On-Time (ACOT™) mode control. It can deliver up to 1.5A output current from a wide input voltage range of 4.3V to 18V. This document explains the function and use of the RT7285C evaluation board (EVB) and provides information to enable operation and modification of the evaluation board and circuit to suit individual requirements. Table of Contents PURPOSE................................................................................................................................................................................ 1 INTRODUCTION...................................................................................................................................................................... 2 KEY PERFORMANCE SUMMARY TABLE ................................................................................................................................... 2 BENCH TEST SETUP CONDITIONS............................................................................................................................................ 3 SCHEMATIC, BILL OF MATERIALS AND BOARD LAYOUT........................................................................................................... 5 MORE INFORMATION........................................................................................................................................................... 10 IMPORTANT NOTICE FOR RICHTEK REFERENCE DESIGNS ...................................................................................................... 10 UG7285CGJ6-00 January 2015 1 http://www.richtek.com RT7285CGJ6 Evaluation Board your power partner. Introduction General Product Information The RT7285C is a synchronous step-down converter with Advanced Constant On-Time (ACOT™) mode control. The ACOT™ provides a very fast transient response with few external components. The low impedance internal MOSFET supports high efficiency operation with wide input voltage range from 4.3V to 18V. The proprietary circuit of the RT7285C enables to support all ceramic capacitors. The output voltage can be adjusted between 0.6V and 8V. The RT7285C also provides output under voltage protection and thermal shutdown protection. The low current (1.5V) to enable operation or low (