The ST1S41 is an internally compensated 850 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S41 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to VIN. The ST1S41 integrates 95 mΩ high-side switch and 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages. The peak current mode control with internal compensation delivers a very compact solution with a minimum component count. The ST1S41 is available in VFQFPN 4 mm x 4 mm 8-lead package and HSOP-8. https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2020-06-12 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2021-04-03 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2021-04-15 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2021-07-17 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2021-12-04 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2022-04-07 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2022-06-13 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2022-06-25 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2023-12-30 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2024-11-20 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-01-23 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-06-16 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-07-04 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-08-20 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-10-02 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2025-10-30 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2026-05-15 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2026-06-12 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2026-06-21 https://elecena.pl/product/16964266/st1s41phr-4-a-step-down-switching-regulator 2026-08-09