Diodes' buck converter saves space

The reduction in size of the inductor and other standard external components resulting from the higher operating frequency, combined with the converter's compact SO-8 packaging and integrated low RDSON power MOSFET switch means significant board space savings can be achieved. A minimised external component count also provides increased flexibility in circuit design.



Characterized by its very low series resistance, the AP5101 delivers a constant output current up to a peak of 1.5A for an efficiency as high as 92%, over a wide input supply range of 4.75V to 22V. A fast transient response eases loop stabilisation requirements and the output is adjustable from 0.81V to 15V.



The AP5101 is self-protected through cycle-by-cycle current limiting and thermal shut down protection, ensuring long term product reliability. The converter has an enable pin allowing it to be switched off into a standby mode, consuming just 0.1µA.



The AP5101 buck converter from Diodes Incorporated is priced at $0.19 each in 10,000 piece quantities.