AP63203数据手册集成电路（IC）的DCDC开关稳压器规格书PDF

描述 Description

The AP63200/AP63201/AP63203/AP63205 are 2A, synchronous buck converters with a wide input voltage range of 3.8V to 32V and fully integrates a 125mΩ high-side power MOSFET and a 68mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.The AP63200/AP63201/AP63203/AP63205 devices are easily used by minimizing the external component count due to their adoption of peak current mode control along with its integrated compensation network.The AP63200/AP63201/AP63203/AP63205 have optimized designs for Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. They also have a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which further erases high-frequency radiated EMI noise caused by MOSFET switching.The devices are available in a low-profile, TSOT26 package.

特性 Features

· VIN 3.8V to 32V · 2A Continuous Output Current · 0.8V ± 1% Reference Voltage · 22µA Ultralow Quiescent Current · Switching Frequencyo 500kHz: AP63200 and AP63201o 1.1MHz: AP63203 and AP63205 · Pulse Width Modulation (PWM) Regardless of Output Loado AP63201 · Supports Pulse Frequency Modulation (PFM)o AP63200, AP63203, and AP63205o Up to 80% Efficiency at 1mA Light Loado Up to 88% Efficiency at 5mA Light Load · Fixed Output Voltageo 3.3V: AP63203o 5.0V: AP63205 · Proprietary Gate Driver Design for Best EMI Reduction · Frequency Spread Spectrum (FSS) to Reduce EMI · Precision Enable Threshold to Adjust UVLO · Protection Circuitryo Overvoltage Protectiono Cycle-by-Cycle Peak Current Limito Thermal Shutdown

应用 Application

•White Goods and Small Home Appliance
•Power Tools and Laser Printers
•Industrial Power
•Gaming Consoles
•Flat Screen TV Sets and Monitors
•Set Top Boxes
•Home Audio
•Consumer Electronics
•Network Systems
•FPGA, DSP, and ASIC Supplies
•12V and 24V Distributed Power Bus Supplies