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 pulse-width 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 active-low 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. Design Solution: Design 20W–30W Power Supplies with Over 90% Efficiency for 24V+ Industrial Automation Systems › Applications * Base Station Power Supplies * Distributed Supply Regulation * General-Purpose Point-of-Load * High-Voltage, Single-Board Systems * Industrial Control Power Supplies * Wall Transformer Regulation * Reduces External Components and Total Cost * No Schottky-Synchronous Operation * Internal Compensation for Any Output Voltage * All-Ceramic Capacitors, Compact 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 * 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization * Reduces Power Dissipation * Peak Efficiency > 90% * PFM and DCM Modes Enable Enhanced Light-Load Efficiency * Auxiliary Bootstrap LDO for Improved Efficiency * 2.8μA Shutdown Current * Operates Reliably in Adverse Industrial Environments * Hiccup Mode Overload Protection * Adjustable Soft-Start and Prebiased Power-Up * Built-In Output-Voltage Monitoring with Active-Low RESET * Programmable EN/UVLO Threshold * Monotonic Startup Into Prebiased Load * Overtemperature Protection * High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range https://elecena.pl/product/22318921/4-5v-60v-3a-high-efficiency-synchronous-step-down-dc-dc-converter-with-internal-compensation 2022-12-27 https://elecena.pl/product/22318921/4-5v-60v-3a-high-efficiency-synchronous-step-down-dc-dc-converter-with-internal-compensation 2025-01-19