UD24121数据手册UTC中文资料规格书

描述 Description

The UTC UD24121 is a monolithic step-down switching mode converter with a built-in power MOSFET. It regulates input voltages from 4.5V to 24V down to an output voltage as low as 0.81V, and supplies up to 1.2A of load current. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The UTC  UD24121 requires a minimum number of readily available standard external components.        APPLICATIONS  * Distributed Power Systems   * Battery Charger   * Pre-Regulator for Linear Regulators   * WLED Drivers

特性 Features

1.2A Peak Output Current  0.35Ω Internal Power MOSFET Switch  Stable with Low ESR Output Ceramic Capacitors  Up to 92% Efficiency  0.1μA Shutdown Mode  Fixed 1.4MHz Frequency  Thermal Shutdown  Cycle-by-Cycle Over Current Protection  Wide 4.5V to 24V Operating Input Range  Output Adjustable from 0.81V to 15V