SC4525EM数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The SC4525EM is a constant frequency peak current-mode step-down switching regulator capable of producing 3A output current from an input ranging from 3V to 28V. The switching frequency of the SC4525EM can be programmed up to 2MHz for component miniaturization or it can be set at lower frequencies to accommodate high step-down ratios. The SC4525EM is suitable for various point of load applications.
Peak current-mode PWM control employed in the SC4525EM achieves fast transient response with simple loop compensation. Cycle-by-cycle current limiting and hiccup overload protection reduces power dissipation during output overload. Soft-start function reduces input start-up current and prevents the output from overshooting during power-up.
The SC4525EM is available in SOIC-8 EDP package.

特性 Features

• Wide Input Voltage Range: 3V to 28V
• 3A Output Current
• 200kHz to 2MHz Programmable Frequency
• Precision 1V Feedback Voltage
• Peak Current-Mode Control
• Cycle-by-Cycle Current Limiting
• Hiccup Overload Protection with Frequency Foldback
• Soft-Start and Enable
• Thermal Shutdown
• Thermally Enhanced 8-pin SOIC Package
• Fully RoHS and WEEE Compliant
• Military Temperature Range: -55°C to +125°C

应用 Application

·Point of Load Applications

简介

SC4525EM属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的SC4525EM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。