ST1S09 Datasheet - STMicroelectronics

ST1S09 1.5 MHz PWM step-down switching regulator

The ST1S09 is a step-down DC-DC converter optimized for powering low output voltage applications. It supplies a current in excess of 2A over an input voltage range from 2.7V to 6V. A high PWM switching frequency (1.5MHz) allows the use of tiny surface-mount components. Table 1. Devices summary Ord.

ST1S09 Features

* 1.5MHz fixed frequency PWM with current control mode

* 2A output current capability www.DataSheet4U.com

* Typical efficiency: > 90%

* 2% DC output voltage tolerance Two versions available: Power Good or Inhibit Integrated output over-vol

ST1S09_STMicroelectronics.pdf