HT77231
HT77231 is Synchronous Buck Converter manufactured by Heroic.
4.0V~28V输入，3.5A同步降压变换器
Buck Converter
4.0~28V Input, 3.5A, Synchronous Buck Converter
- Features
- 3.5A converter with 100mΩ and 60mΩ FETs
- Fast transient response with minimum external ponents
- Input voltage range: 4.0V~28V
- Output voltage range: 0.6 V~13V
- Pulse skip mode to keep high efficiency in light load
- 600k Hz 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
- 600k Hz开关频率
- 关断电流<=1u A (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
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