STMicroelectronics | STEVAL-ISA046V2

The STEVAL-ISA046V2 is a high frequency synchronous buck converter evaluation board, based on the ST1S09I. It is optimized for powering all low voltage applications and, generally, replaces high current linear solutions when power dissipation may cause high heating of the application environment. It provides up to 2 A over an input voltage range of 2.7 V to 5.5 V.

A high 1.5 MHz switching frequency allows the use of tiny surface-mount components and in addition to the resistor divider to set the output voltage value, an inductor and two capacitors are required. The device is thermally protected and current limited to prevent damage due to accidental shortcircuit.

Features:

• Input voltage range: 2.7 V to 5.5 V
• Output voltage: 3.3 V
• Max Iout: 2 A
• High internal switching frequency: 1.5 MHz
• Inhibit function
• Short-circuit protection
• ST1S09I in the DFN6 3x3 package