The MAX17682 is a high-voltage, high-efficiency, iso-buck DC-DC converter designed to provide isolated power up to 10W. The device operates over a wide 4.5V to 42V input voltage range and uses primary-side feedback to regulate the output voltage. It delivers primary peak current up to 3.7A and regulates primary output voltage to within ±1.2% over -40°C to +125°C. The device features peak-current-mode control with pulse-width modulation (PWM) scheme. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout. 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 inputvoltage level. An open-drain, active-low RESETB pin provides a delayed power-good signal to the system upon achieving successful regulation of the primary output voltage. The device operates over the -40°C to +125°C industrial temperature range and is available in a compact 20-pin (4mm x 4mm) TQFN package. Simulation models are available. Applications * Communication Hub in Smart Meters * Floating Power Supply Generation * Industrial Process Control * Isolated Power Supplies in Medical Equipment * Eliminates External Components and Reduces Total Cost * Synchronous Primary Operation for High Efficiency and Reduced Cost * All-Ceramic Capacitors, Ultra-Compact Layout * Reduces Number of DC-DC Regulators to Stock * Wide 4.5V to 42V Input Voltage Range * 0.9V to 92% VIN Primary Output Voltage * Delivers up to 3.7A Peak Current * 100kHz to 500kHz Adjustable Frequency with External Synchronization * Available in a 20-Pin, 4mm x 4mm TQFN Package * Reduces Power Dissipation * Peak Efficiency > 90% * Shutdown Current = 2.8µA (typ) * Operates Reliably in Adverse Industrial Environments * Hiccup-Mode Current Limit, Sink Current Limit, and Auto-Retry Startup * Programmable EN/UVLO Threshold * Adjustable Soft-Start * High Industrial -40°C to +125°C Ambient Operating Temperature Range * -40°C to +150°C Junction Temperature Range https://elecena.pl/product/22319200/4-5v-to-42v-input-ultra-small-high-efficiency-iso-buck-dc-dc-converter 2022-12-27 https://elecena.pl/product/22319200/4-5v-to-42v-input-ultra-small-high-efficiency-iso-buck-dc-dc-converter 2025-01-20