The MAX1776 high-efficiency step-down converter provides an adjustable output voltage from 1.25V to VIN from supply voltages as high as 24V. An internal current-limited 0.4Ω MOSFET delivers load currents up to 600mA. Operation to 100% duty cycle minimizes dropout voltage (240mV at 600mA). The MAX1776 has a low 15µA quiescent current to improve light-load efficiency and conserve battery life. The device draws only 3µA while in shutdown. High switching frequencies (up to 200kHz) allow the use of tiny surface-mount inductors and output capacitors. The MAX1776 is available in an 8-pin µMAX package, which uses half the space of an 8-pin SO. For increased output drive capability, use the MAX1626/ MAX1627 step-down controllers, which drive an external P-channel MOSFET to deliver up to 20W. Applications * Distributed Power Systems * Handheld Devices * Keep-Alive Supplies * Notebook Computers * Fixed 5V or Adjustable Output * 4.5V to 24V Input Voltage Range * Up to 600mA Output Current * Internal 0.4Ω P-Channel MOSFET * Efficiency Over 95% * 15µA Quiescent Supply Current * 3µA Shutdown Current * 100% Maximum Duty Cycle for Low Dropout * Current-Limited Architecture * Thermal Shutdown * Small 8-µMAX Package https://elecena.pl/product/22319220/24v-600ma-internal-switch-100-duty-cycle-step-down-converter 2022-12-27 https://elecena.pl/product/22319220/24v-600ma-internal-switch-100-duty-cycle-step-down-converter 2025-01-19