Heroic HT77231
Synchronous Buck Converter
FEATURES
●3.5A converter with 100mΩ and 60mΩ FETs●Fast transient response with minimum external components
●Input voltage range: 4.0V~28V
●Output voltage range: 0.6 V~13V
●Pulse skip mode to keep high efficiency in light load
●600kHz switching frequency
●Shutdown current: <=1 µA (typical)
●Soft start and start delay with pre-biased output voltage
●Cycle-by-cycle over current limit
●Hiccup-mode over current protection
●Non-latching Undervoltage protection and Thermal Shutdown protection
●Enable pin
●Packages: Pb-free Packages, ESOP8
●3.5A降压,内置100mΩ和60mΩ功率管
●于快速瞬态响应,外部元器件少
●输入电压范围:4.0V~28V
●输出电压范围:0.6V~13V
●脉冲跳跃模式使得轻载下高效率
●600kHz开关频率
●关断电流<=1uA (典型值)
●软起动,输出预先有电压时有启动延迟
●逐周期过流检测限制
●打嗝模式过流关断
●欠压保护、过热关断保护,不锁定可自动恢复
●具有使能pin
●无铅封装,ESOP8
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APPLICATIONS
●5V, 12V or 24V power rail applications●TV
●Set top box
●Consumer electronics
●Industrial power supplies
●5V, 12V或24V电源轨
●嵌入式系统
●消费电子
●电视
●机顶盒
●工业电子 Copyright©2023, Heroic Technology -1- 11/2023 – V0.5
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DESCRIPTION
The HT77231 is a 3.5A, step-down, buck converter with minimum external components and low shutdown current.