ST1S03集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

ST1S03属于集成电路（IC）的稳压器-DC-DC开关稳压器。由意法半导体集团制造生产的ST1S03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。

描述 Description

The ST1S03 is a step down DC-DC converter optimized for powering low-voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause an high heating of the application environment.

特性 Features

■ Step-down current mode PWM (1.5MHz) DC-DC converter

■ 2 DC output voltage tolerance

■ Internal soft start for START-UP current limitation and power on delay of 50-100µs

■ Typical efficiency: > 70 over all operating conditions

■ 1.5A Output current capability

■ Not switching quiescent current: max 2.5mA over temperature range

■ Switch VDS: max 350mV @ ISW=750mA

■ Uses tiny capacitors and inductors

■ Available in DFN 3x3 exposed pad