Micropower Step-Up DC/DC Converter in a ThinSOT Package

The ADPL21504 is a micropower step-up DC/DC converter in a 5-lead, low-profile (1mm) ThinSOT package. The ADPL21504 is designed for higher power systems with a 350mA current limit and an input voltage range of 1.2V to 15V. The ADPL21504 features a quiescent current of only 20μA at no load, which further reduces to 2μA (max) in shutdown. A current-limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load currents. The 32V switch enables the generation of high-voltage outputs up to 30V in a simple boost topology, eliminating the need for costly transformers. The ADPL21504’s low off-time of 400ns permits the use of tiny, low-profile inductors and capacitors, minimizing footprint and cost in space-conscious portable applications.

APPLICATIONS

* Portable Electronics

* Battery Backup

* Digital Cameras

* Organic Light Emitting Diode (OLED) Power

* Medical Diagnostic Equipment

* Low Quiescent Current:

* 20μA in Active Mode;

* <2μA in Shutdown Mode

* Operates with a VIN as Low as 1.2V

* Low VCESAT Switch: 270mV at 300mA