MAX5089ATE+ [Analog Devices]

The MAX5088/MAX5089 are high-frequency, DC-DC converters with an integrated n-channel power MOSFET, providing up to 2A of load current. The MAX5088 is designed for nonsynchronous buck topology power supplies, while the MAX5089 is for synchronous buck topology, offering higher efficiency with an external synchronous rectifier. They operate from a 4.5V to 5.5V or 5.5V to 23V input voltage range and support a resistor-programmable switching frequency from 200kHz to 2.2MHz. The voltage-mode architecture with peak current-limit scheme ensures stable operation up to 2.2MHz. The MAX5088 includes a clock output for driving a second converter 180° out-of-phase and a power-on-reset output, while the MAX5089 features a power-good output and a synchronous rectifier driver. Additional features include short-circuit protection, thermal-shutdown protection, and a thermally enhanced 16-pin TQFN package.