Update: 29 September, 2023
The ST1S03 is a step-down DC-DC converter optimized for powering low-voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause an high heating of the application environment. It provides up to 1.5A over an input voltage range of 3V to 16V. An high switching frequency (1.5MHz) allows the use of tiny surface-mount components: as well as the resistor divider to set the output voltage value, only an inductor, a schottky diode and two capacitors are required. Besides, a low output ripple is guaranteed by the current mode PWM topology and by the use of low E.S.R. SMD ceramic capacitors. The device is thermal protected and current limited to prevent damages due to accidental short circuit. The ST1S03 is available in DFN6 package.
File format: PDF
Size: -
MD5 Checksum: 6D92C09A10D34BCF8693F4794DBC7A4D
Publication date: 11 June, 2012
Downloads: -
PDF Link: ST ST1S03 data sheet PDF