CS51031数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

The Hysteretic PFET Buck Controller is a switching controller for use in dc-dc converters. It can be used in the buck topology with a minimum number of external components. This Hysteretic PFET Buck Controller consists of a VCC monitor for control-ling the state of the device, 1.0 A power driver for controlling the gate of a discrete P-channel transistor, fixed frequency oscillator, short circuit protection timer, programmable soft start, precision reference, fast output voltage monitoring comparator and output stage driver logic with latch.The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable soft start reduces current surges at start up. The short circuit protection timer significantly reduces the duty cycle to approximately 1/30 of its cycle during short circuit conditions.The CS51031 is available in 8 Lead SO plastic packages.

特性 Features

• 1A Totem Pole Output Driver
• High Speed Oscillator (700 Hz max)
• No Stability Compensation Required
• Lossless Short Circuit Protection
• VCC Monitor
• 2% Precision Reference
• Programmable Soft Start
• Wide Ambient Temperature Range:Industrial Grade: -40°C to 85°CCommercial Grade: 0°C to 70°C
• Pb-Free Packages are Available

应用 Application

• FPGA, DSP, I/O and Core
• Graphics Card

简介

CS51031属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的CS51031DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。