NCP3233中文资料Step Down Converter Operates from 3V to 21V and delivers up to 20A数据手册ONSEMI规格书

描述 Description

The NCP3233 is a 20A step down converter (with internal MOSFETs) capable of operating from 3V to 21V without the need for an external bias. This fixed frequency converter offers high efficiency and the output can be adjusted to offer a voltage as low as 0.6V. An adjustable current limit allows the device to be used for multiple current levels. The part is offered is a thermally enhanced 6mm by 6mm QFN package

ent, high efficiency voltage-mode synchronous buck converter which operates from 3 V to 21 V input and generates output voltages down to 0.6 V at up to 25 A DC load or 30 A instantaneous load.

特性 Features

• Wide input voltage range from 3V to 21V
• Allows same device to be used for 3.3V, 5V, and 12V bus rails
• 300kHz, 500kHz, and 1MHz switching frequency
• User selectable option to allow optimized trade-off between efficiency and solution size
• Lossless low-side FET current sensing
• Improve efficiency
• 0.6V internal reference volttage
• Low voltage output to accommodate low voltage cores
• External programmable soft-start
• Reduces in-rush current and prevents unwarranted overcurrent during start up
• Pre-bias Start-up
• Prevents reverse current flow
• Hiccup Mode Operation for all Faults
• Allows re-start if fault conditions are eliminated
• Adjustable Output Voltage
• Flexibility
• Adjustable current limt
• Optimize for overcurrent conditions. Allow smaller inductors with lower saturation currents to be used for lower current applications
• Output Over-voltage Protection and Under-voltage Protection

应用 Application

• High current POL applications
• ASIC, FPGA, DSP and CPU Core and I/O Supplies
• Cellular Base Stations
• Telecom and Network Equipment
• Server and Storage System

简介

NCP3233属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCP3233稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。