供应 FR9888SPGTR 同步降压开关电源芯片

The FR9888 is a synchronous step-down DC/DC converter that provides wide 4.5V to 23V input voltage range and 3.5A continuous load current capability. The FR9888 fault protection includes cycle-by-cycle current limit, input UVLO, output over voltage protection and thermal shutdown. Besides, adjustable soft-start function  prevents inrush current at turn-on. This device uses current mode control scheme which provides fast  transient response. Internal Compensation function reduces external compensation components and simplifies the design process. In shutdown mode, the supply current is less than 1μA. The FR9888 is available in an 8-pin SOIC package, provides a very compact system solution and good thermal conductance. 

FR9888是一款同步降压DC/DC转换器，可提供宽的4.5V至23V输入电压范围和3.5A连续负载电流能力。
FR9888故障保护包括逐周期电流限制、输入UVLO、输出过压保护和热关机。此外，可调软启动功能可防止合闸

的涌流。该器件采用电流模式控制，具有快速的瞬态响应，内部补偿功能减少了外部补偿元件，简化了设计过程。

在关机模式下，电源电流小于1μA.

FR9888采用8针SOIC封装，提供非常紧凑的系统解决方案和良好的热导率。