The MAX8576–MAX8579 synchronous PWM buck controllers use a hysteretic voltage-mode control algorithm to achieve a fast transient response without requiring loop compensation. The MAX8576/MAX8577 contain an internal LDO regulator allowing the controllers to function from only one 3V to 28V input supply. The MAX8578/MAX8579 do not contain the internal LDO and require a separate supply to power the IC when the input supply is higher than 5.5V. The MAX8576–MAX8579 output voltages are adjustable from 0.6V to 0.9 x VIN at loads up to 15A. Nominal switching frequency is programmable over the 200kHz to 500kHz range. High-side MOSFET sensing is used for adjustable hiccup current-limit and short-circuit protection. The MAX8576/MAX8578 can start up into a precharged output without pulling the output voltage down. The MAX8577/MAX8579 have startup output overvoltage protection (OVP), and will pull down a precharged output. Applications * AGP and PCI Express® Power Supplies * Graphic-Card Power Supplies * Motherboard Power Supplies * Point-of-Load Power Supplies * Set-Top Boxes * 3V to 28V Supply Voltage Range * 1.2% Accurate Over Temperature * Adjustable Output Voltage Down to 0.6V * 200kHz to 500kHz Switching Frequency * Adjustable Temperature-Compensated Hiccup Current Limit * Lossless Peak Current Sensing * Monotonic Startup into Prebias Output (MAX8576/MAX8578) * Startup Overvoltage Protection (MAX8577/MAX8579) * Enable/Shutdown * Adjustable Soft-Start https://elecena.pl/product/22337006/3v-to-28v-input-low-cost-hysteretic-synchronous-step-down-controllers 2022-12-29 https://elecena.pl/product/22337006/3v-to-28v-input-low-cost-hysteretic-synchronous-step-down-controllers 2024-11-03 https://elecena.pl/product/22337006/3v-to-28v-input-low-cost-hysteretic-synchronous-step-down-controllers 2024-11-09 https://elecena.pl/product/22337006/3v-to-28v-input-low-cost-hysteretic-synchronous-step-down-controllers 2025-01-19