1.3MHz, 18V Step-Up Converter MP1540

The MP1540 is a 5-pin thin TSOT23 current mode step-up converter intended for small， low power applications。 The MP1540 switches at 1.3MHz and allows the use of tiny， low cost capacitors and inductors 2mm or less in height。Internal soft-start results in small inrush current and extends battery life。The MP1540 operates from an input voltage as low as 2.5V and can generate 12V at up to 200mA from a 5V supply。