ST1S09 Datasheet - STMicroelectronics

ST1S09, 1.5 MHz PWM step-down switching regulator

ST1S09 2A, 1.5 MHz PWM step-down switching regulator with synchronous rectification

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

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 Order codes ST1S09PU ST1S09APU (1) Packaging ST1S09PUR ST1S09APUR ST1S09IPUR Package DFN6D (3x3 mm

ST1S09_STMicroelectronics.pdf