High-performance switching regulator Low standby power Wide input range Working temperature range -40°C to +85°C Pin compatible with LM78xx linear regulator Can withstand sustained short circuit 3-year product warranty Additional specifications: Control deviations: - Input change: 0.2% - Load change: 0.4% Residual ripple: <75 mV pk-pk (20 MHz bandwidth) Input filter: internal capacitors Short-circuit protection: constant, automatic restart Working temperature range: -40°C to +85°C, above 60°C performance reduction 2.4%/K I/O isolation: none Enclosure: Plastic (UL94 V-0 class) Model: TSR 1-2490 Input voltage: 12 - 36 V DC Output current (max): 1 A Output voltage: 9.0 V DC Typical efficiency @ Uin min: 95% Typical efficiency @ Uin max: 90% Pin assignment: Pin 1 +Uin 2 GND 3 +Uout https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2021-04-26 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2022-08-22 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2022-11-10 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2023-03-20 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2023-05-14 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2023-10-01 https://elecena.pl/product/17881429/tsr-1-2490-switching-regulator-tsr-1-series-9-0-v-dc-1-a 2025-12-14