High frequency buck converter
The AP5100 step-down converter from Diodes Incorporated has been designed to bring space savings and efficiency improvements to set top box, modem and distributed power applications.
Provided in a 6pin SOT26 package, the converter features a built in power mosfet and internal compensation designed to limit external component requirements.
Operating at a fixed switching frequency of 1.4Mhz, Diodes says that the AP5100 enables a reduction in the overall size of external components, particularly the inductor.
According to Diodes, with its low series on-resistance power mosfet switch, the converter is capable of delivering a constant current output of up to 1.2A at 90% efficiency over an input supply range from 4.75 to 24V. The output is adjustable via a resistor divider, from 0.81 to 15V.
The AP5100 is self protected, featuring on-chip thermal shutdown and cycle-by-cycle over-current protection.
