ST2S08B中文资料双路同步整流1.5 A、1.5 MHz可调步降开关稳压器数据手册ST规格书

描述 Description

The ST2S08B is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 5.5 V. A high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The device is thermally protected and current limited. The ST2S08B is available in the QFN12L (4 x 4 mm) package.

特性 Features

• Step-down current mode PWM (1.5 MHz) DC-DC converter
• Adjustable output voltage from 0.8 V
• 2 % DC output voltage tolerance
• Synchronous rectification
• Integrated current limit
• Inhibit function
• Soft-start for start delay of 800 μs typ.
• Typical efficiency: > 80 % at VOUT= 1.2 V
• 1.5 A output current capability
• Non-switching quiescent current: max 1.5 mA over temperature range
• RDS(ON)150 mΩ (typ.)
• Uses tiny capacitors and inductors
• Available in QFN12L (4 x 4 mm)

简介

ST2S08B属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的ST2S08B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。