ST1S30数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The ST1S30 is a step-down DC-DC converter optimized for powering low output voltage applications. It supplies a current in excess of 3 A over an input voltage range from 2.7 V to 6 V.

A high PWM switching frequency (1.5 MHz) allows the use of tiny surface-mount components.

Moreover, since the required synchronous rectifier is integrated, the number of the external components is reduced to minimum: a resistor divider, an inductor and two capacitors. The Power Good function continuously monitors the output voltage. An open drain Power Good flag is released when the output voltage is within regulation. In addition, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermally protected and the output current limited to prevent damages due to accidental short circuit. The ST1S30 is available in the DFN8 (4 x 4 mm) package.

特性 Features

• 1.5 MHz fixed frequency PWM with current control mode
• 3 A output current capability
• Typical efficiency: > 90%
• 2 % DC output voltage tolerance
• Two versions available: power good or inhibit
• Integrated output over-voltage protection
• Non switching quiescent current: (typ) 1.5 mA over temperature range
• RDSon (typ) 100 mΩ
• Utilizes tiny capacitors and inductors
• Operating junction temp. -25 °C to 125 °C
• Available in DFN8 (4 x 4 mm) exposed pad

简介

ST1S30属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的ST1S30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。