The MP1543 features output disconnect to dramatically cut leakage current in shutdown mode and conserve battery life. Available in the SOT23-5 package, this combination of features makes the MP1543 ideally suited for battery-powered applications using a single Li-ion or two alkaline (AA, AAA) cells.
The MP1543 is a perfect device for mobile phones, handheld computers/PDAs, portable media players, cordless input devices, digital still/video cameras, and small LCD/OLED displays.
Additional features include thermal shutdown, soft-start, and an adjustable output voltage range of 2.5V to 6V. This converter also integrates 500kHz top and bottom switches supporting up to 800mA output current in a 3.6V to 5V boost application.
Pricing for the MP1543 is $1.51 in 1,000 piece quantities. Samples and an evaluation board are available now.