The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low R DSON (0.9 ? typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2017-08-06 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2018-05-04 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2018-12-17 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2019-04-02 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2021-04-23 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2021-09-25 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2022-09-29 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2022-10-19 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2023-01-05 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2025-12-12 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2026-02-05 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2026-02-13 https://elecena.pl/product/9716769/lmr14203xmk-nopb-step-down-adj-4-5-42-v-0-765-34-v-sot-23-6 2026-09-17