Step-down DC/DC converter MAX17521 series

IChigh-voltageindustrial

The MAX17521 dual-output, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1A at each output. Each output is programmable from 0.9V to 92%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±1.7%. The MAX17521 uses peak-current-mode control. Each output can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The MAX17521 is available in a 24-pin (4mm x 5mm) TQFN package. Simulation models are available. Applications CPU, DSP, or FPGA Power Distributed Supply Regulation General-Purpose Point of Load Industrial Control Power Supplies Features and Benefits Reduces External Components and Total Cost No Schottky—Synchronous Operation All-Ceramic Capacitors, Compact Layout Reduces Number of DC-DC Regulators to Stock Wide 4.5V to 60V Input Each Output Adjustable From 0.9V to 92%VIN Pin-Selectable 560kHz or 300kHz Switching Frequency Independent Input Voltage Pin for Each Output Reduces Power Dissipation Peak Efficiency > 90% PFM Mode Enables Enhanced Light-Load