ST1S12G12R集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

ST1S12G12R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ST1S12G12R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 ST1S12 is a step down DC-DC converter optimized for powering low-voltage digital cores in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause high heating of the application environment. It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V. A high switching frequency (1.7 MHz) allows the use of tiny surface-mount components.

特性 Features

■ Step-down current mode PWM (1.7 MHz) DCDC converter

■ 3 DC output voltage tolerance

■ Synchronous rectification

■ Fixed output voltage 1.2 V, 1.8 V, and ADJ (available on request 1.5 V, 2.5 V and 3.3 V)

■ Enable function

■ Internal soft start

■ Typical efficiency: > 90

■ 0.7 A output current capability

■ Not switching quiescent current: max 650 µA over temperature range

■ RDSON typ. 250 mΩ and 400 mΩ

■ Uses tiny capacitors and inductors

■ Operative junction temp. -40 °C to 125 °C

■ Available in TSOT23-5L package