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RY9121 17V 2A 500KHz ECOT Force-PWM Sync Step-Down Regulator

2025-08-11 來源: 作者:深圳市佰泰盛世科技有限公司 原創文章
193

關鍵詞: RY9121 降壓調節器 ECOT模式 應用場景 開關頻率

RY9121  17V 2A 500KHz ECOT Force-PWM Sync Step-Down Regulator
1、Features
? Wide 4.5V to 17V Operating Input Range
? 2A 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
? 110mΩ/70mΩ Low RDS(ON) Internal Power
MOSFETs
? Output Adjustable from 0.6V
? No Schottky Diode Required
? 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 RY9121 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 2A continuous output current over a wide input supply
range, with excellent load and line regulation. ECOT control operation provides very fast transient response and easy loop design as well as very tight output regulation.The RY9121 requires a minimal number of readily available, external components and is available in a space saving
SOT23-6 package.
4、Website:www.baitaishengshi.com
5、Typical Application Circuit



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