NCP5212T中文资料Single Synchronous Step Down Controller数据手册ONSEMI规格书

描述 Description

NCP5212 is a synchronous step-down controller for high performance battery powered systems. It includes a high efficiency PWM controller. A pin is provided to allow two devices in interleaved operation. An internal power good voltage monitor tracks the SMPS output. NCP5212 also features soft start sequence, UVLO for Vcc and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. It is packaged in QFN-16.

特性 Features

• 0.8% accuracy; 0.8 V reference
• 4.5 V to 27 V battery/adapter voltage range
• Adjustable output voltage range: 0.8 V to 3.3 V
• Synchronization interleaving between two NCP5212 devices
• Skip mode for power saving operation at light load
• Lossless inductor current sensing
• Programmable transient response enhancement (TRE) control
• Programmable adaptive voltage positioning (AVP)
• Input supply feedforward control
• Internal SoftStart
• Integrated output discharge (SoftStop)
• Built-in adaptive gate drivers
• PGOOD indication
• Overvoltage, undervoltage and overcurrent protection
• Thermal shutdown

应用 Application

• Notebook system power

简介

NCP5212T属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由ONSEMI制造生产的NCP5212TDC-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。