The SSP9301 is a compact 5V Buck Converter which can deliver 1A output current.SSP9301 employs a proprietary control loop to achieve a fast transient load response. It keeps high converting efficiency in both light load and heavy load. SSP9301 is equipped with all kinds of protection, such as input over voltage protection, output short circuit protection, over current protection and over temperature protection.SSP9301 is consists of internal power tree generator, bandgap voltage reference module, under-Voltagelockout (UVLO) module, error amplifier, protection circuitry, driver block, current sensing block and two power MOSFETs.SSP9301 is housed in a SOT23-5 package.