The STEVAL-ISA187V1 is a product evaluation board based on the ST synchronous step-down switching regulator A6985F, which can deliver up to 0.5 A and, with its 100% duty cycle ability to withstand cold crank events and wide input operating voltage range, represents the ideal choice for battery-powered automotive systems. Synchronous rectification helps achieve higher efficiency at full load as well as application compactness, while high-frequency switching (programmable up to 2 MHz) helps reduce the cost and size of power passive components while remaining outside the AM band. The device can operate in low consumption mode (LCM), with a quiescent current of 30 μA at VIN=12 V and VOUT= 3.3 V that ensures high efficiency under light load, which is a requirement in typical car body applications that are active when a car is parked. A low noise mode (LNM) can be selected to meet the requirements of infotainment applications with forced PWM mode under all load conditions. The default board configuration is LCM active, 2 MHz switching frequency, high ISKIP current and the switchover feature enabled, but all of these settings can be easily changed so the user can evaluate different application scenarios. https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2017-03-26 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2017-09-09 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2020-06-05 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2021-04-02 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2022-06-12 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2022-06-24 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2025-01-07 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2025-03-21 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2025-06-27 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2026-06-04 https://elecena.pl/product/8156772/steval-isa187v1-38-v-0-5-a-synchronous-step-down-switching-regulator-evaluation-board-based-on-a6985f 2026-08-21