RT8272是集成MOSFET直流直流降器 , 在4.75V ~ 24V之输入电范可提供最大3A电流输出 , 其电流控制模式及外部补电路使得在重反可以得到适度的微 , 另外逐一周期电流限制提供短路保护 , 起动机制消弭起动之涌浪电流 , RT8272也提供UVP输入低电保护及OTP保护 , 在停机模式下所需消耗电流小于25uA , 非常适用于零件精 , 高电流输出之电子装置。

The RT8272 is a high voltage buck converter that can support the input voltage range from 4.75V to 24V and the output current can be up to 3A. Current Mode operation provides fast transient response and eases loop stabilization.
The chip provides protection functions such as cycle-by-cycle current limiting and thermal shutdown protection. In shutdown mode, the regulator draws 25μA of supply current. The RT8272 is available in a SOP-8 (Exposed Pad) surface mount package.

Note :
Richtek Green products are :
► RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
► Suitable for use in SnPb or Pb-free soldering processes.

•RT8272  4.75V ~ 24V 输入电范
• RT8272 3A 最大电流输出
• RT8272 含集成型N-MOSFET架构
• RT8272 1.2MHz固定操作率
• RT8272 0.92V ~ 15V输出电可范
• RT8272 电流控制模式
• RT8272高达95%效率
• RT8272可程序Soft-Start序
• RT8272兼容于Low-ESR Ceramic输出电容器
• RT8272 Cycle-by-Cycle电流保护
• RT8272输入低电保护
• RT8272保护机制
• 散SOP-8(Exposed Pad)包装

• Wide Operating Input Range : 4.75V to 24V
• Adjustable Output Voltage Range : 0.92V to 15V
• Output Current up to 3A
• 25μA Low Shutdown Current
• Power MOSFET : 0.1Ω
• High Efficiency up to 95%
• 1.2MHz Fixed Switching Frequency
• Stable with Low ESR Output Ceramic Capacitors
• Thermal Shutdown Protection
• Cycle-By-Cycle Over Current Protection
• RoHS Compliant and Halogen Free

• 分配式电源系统
• 电池充电器
• DSL modem品
• 前电源系统.

• Distributive Power Systems
• Battery Charger
• DSL Modems
• Pre-regulator for Linear Regulators

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SOP-8 (Exposed Pad)