MAX17574 Datasheet | Maxim Integrated

Click here for production status of specific part numbers. EVALUATION KIT AVAILABLE 4.5V to 60V, 3A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal pensation General Description The MAX17574, 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 3A current. Output voltage is programmable from 0.9V up to 90%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±0.9%. The MAX17574 Features a peak-current-mode control architecture. The device can be operated in the pulsewidth modulation (PWM), pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) control schemes. A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input voltage level. An open-drain RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage. The MAX17574 is available in a 24-pin (4mm x 5mm) TQFN package. Simulation models are available. Applications - - Industrial Control Power Supplies - - General-Purpose Point-of-Load - - Distributed Supply Regulation - - Base Station Power Supplies - - Wall Transformer Regulation - - High-Voltage, Single-Board Systems Benefits and Features - - Reduces External ponents and Total Cost - No Schottky-Synchronous Operation - Internal pensation for Any Output Voltage - All-Ceramic Capacitors, pact Layout - - Reduces Number of DC-DC Regulators to Stock - Wide 4.5V to 60V Input - Adjustable Output Voltage Range from 0.9V up to 90% of VIN - Delivers up to 3A Current Over Temperature - 100k Hz to 2.2MHz Adjustable Switching Frequency with External Synchronization - - Reduces Power Dissipation - Peak Efficiency > 90% - PFM and DCM Modes Enable Enhanced Light-Load...