RY9143 16V 4A 500KHz ECOT PWM Sync Step-Down Regulator

2025-08-12 来源：作者：深圳市佰泰盛世科技有限公司原创文章

关键词： RY9143 降压调节器电子应用芯片特点电源管理

1、Features

Wide 4.5V to 16V Operating Input Range

• 4A Continuous Output Current

500KHz Switching Frequency

• ECOT Mode Control with Fast Transient Response

• Built-in Over Current Limit

• Built-in Over Voltage Protection

• Force-PWM Mode

• Internal Soft-Start

55mΩ/36mΩ Low RDS(ON) Internal Power MOSFETs

• Output Adjustable from 0.765V

• Short Protection with Hiccup-Mode

• Integrated internal compensation

• Thermal Shutdown

• Available in SOT23-6 Package

• -40°C to +85°C Temperature Range

2、Applications

• Digital Set-top Box (STB)

• Tablet Personal Computer (Pad)

• Flat-Panel Television and Monitor

• Wi-Fi Router / AP

• Digital Video Recorder (DVR)

• Portable Media Player (PMP)

• Cable Modem / XDSL

• General Purposes

3、General Description

The RY9143 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 4A continuous output current over a wide input supply range, with excellent load and line regulation. ECOT force-PWM control operation provides very fast transient response and easy loop design as well as very tight output regulation.

The RY9143 requires a minimal number of readily available, external components and is available in a space savingSOT23-6 package.

4、Website：www.baitaishengshi.com

5、Typical Application Circuit

企业微信截图_17549617909442.png