# ECG Original e250 ## Description A simple fixed linear voltage regulator board that can provide 3.3V up to 1A output and could operate down to 1V input-to-output differential. #firstpcbFlux ## Project Details - **Owner:** geloamk - **Created:** 4/11/2025 - **Last Updated:** 4/22/2025 - **Visibility:** Public ## Key Components ### -9 V — [DC Supply](https://www.flux.ai/jharwinbarrozo/dc-supply.md) - Voltage: 5V **Pins:** - ANODE - CATHODE ### +9 V — [DC Supply](https://www.flux.ai/jharwinbarrozo/dc-supply.md) - Voltage: 5V **Pins:** - ANODE - CATHODE ### D1 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Emission Coefficient: 2.00 - Part Type: Diode - Series Resistance: 0.0286Ω - Breakdown Voltage: 50V - Saturation Current: 1.88e-9A **Pins:** - A [pin 2] - K [pin 1] ### D2 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V - Part Type: Diode - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 **Pins:** - A [pin 2] - K [pin 1] ### D3 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D4 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Saturation Current: 1.88e-9A - Emission Coefficient: 2.00 - Part Type: Diode - Series Resistance: 0.0286Ω - Breakdown Voltage: 50V **Pins:** - A [pin 2] - K [pin 1] ### J1 — [XY301V-A-5.0-3P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-3p.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2411121455_Ningbo-Xinlaiya-Elec--XY301V-A-5-0-3P_C557652.pdf - Manufacturer Part Number: XY301V-A-5.0-3P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] ### J2 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J3 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J4 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### U1 — [AD624ADZ](https://www.flux.ai/adrian95/ad624adz.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/AD624.pdf - Manufacturer Name: Analog Devices Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AD624ADZ **Pins:** - -INPUT [pin 1] - -VS [pin 7] - +INPUT [pin 2] - +VS [pin 8] - G=100 [pin 13] - G=200 [pin 12] - G=500 [pin 11] - INPUT_NULL [pin 4] - INPUT_NULL_2 [pin 5] - OUTPUT [pin 9] - OUTPUT_NULL [pin 14] - OUTPUT_NULL_2 [pin 15] - REF [pin 6] - RG1 [pin 16] - RG2 [pin 3] - SENSE [pin 10] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/geloamk/ecg-original-e250](https://www.flux.ai/geloamk/ecg-original-e250).* --- *Generated from [https://www.flux.ai/geloamk/ecg-original-e250](https://www.flux.ai/geloamk/ecg-original-e250)*