The MAX17559 is a dual-output, synchronous step-down controller that drives nMOSFETs. The device uses a constant-frequency, peak-current-mode architecture. The two outputs can be configured as independent voltage rails. Input capacitor size is minimized by running the two outputs 180° out-of-phase. The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR for improved system efficiency. Current foldback or latchoff limits MOSFET power dissipation under short-circuit conditions. The IC provides independent adjustable soft-start/stop for each output and can start up monotonically into a prebiased output. The IC can be configured in either PWM or DCM modes of operation, depending on whether constant-frequency operation or light-load efficiency is desired. The IC operates over the -40°C to +125°C temperature range and is available in a lead(Pb)-free, 7mm × 7mm, 32-pin TQFP, package. Applications * Computerized Numerical Control * Distributed DC Power Systems * Industrial Power Supplies * Motion Control * Programmable Logic Controllers * Wide Range of Operation * Wide 4.5V to 60V Input Voltage Range * Wide 0.8V to 24V Output Voltage Range * RSENSE or Inductor DCR Current-Sensing * Fixed 180° Out-of-Phase Operation * Adjustable 100kHz to 2.2MHz Switching Frequency * Independent Enable and PGOOD * Available in a Lead(Pb)-Free 7mm × 7mm, 32-Pin TQFP Package * Enhances Power Efficiency * Low-Impedance Gate Drives for High Efficiency * DCM Operation at Light Loads * Auxiliary Bootstrap LDO * Operates Reliably in Adverse Industrial Environments * Independent Adjustable Soft-Start/Stop or Tracking * Current Selectable Foldback or Latchoff Limits MOSFET Heat Dissipation During a Short-Circuit Condition * Operates Over the -40°C to +125°C Temperature Range * Output Overvoltage and Overtemperature Protections https://elecena.pl/product/22318915/60v-dual-output-synchronous-step-down-controller 2022-12-27 https://elecena.pl/product/22318915/60v-dual-output-synchronous-step-down-controller 2025-01-20