# 12V LiFePO4 Power Distribution Board ## Description 12V LiFePO4 power distribution board requirements package: 150 mm x 100 mm 2-layer SMD PCB with 12V battery input, input protection, 12V-to-5.1V buck conversion, six USB-C power outputs, 3.3V logic rail, current/voltage monitoring, test points, board-edge connectors, and JLCPCB-aligned fabrication outputs. ## Project Details - **Owner:** lunatrix - **Created:** 4/11/2026 - **Last Updated:** 4/11/2026 - **Visibility:** Public - **Compliance:** JLCPCB 2-layer manufacturable design intent - **Mount:** SMD primary; TH battery/fuse if needed - **Manufacturing Quantity Target:** Prototype / low-volume build - **Implementation Details:** Frozen high-level architecture: battery input and protection, measurement block, 12V distribution, 5.1V buck stage, 3.3V logic rail, six USB-C output modules, board-edge service headers, and test points. Connector placement intent: battery input and service headers on edges; USB-C ports along board edges for cable access. Layout priorities: compact switching loops, short high-current paths, probe-accessible test points, and JLCPCB-compatible 2-layer manufacturability. - **Allow Substitutes:** Yes, if JLCPCB/LCSC-compatible and functionally equivalent - **Stackup:** 2-layer - **Operating Voltage:** 12V LiFePO4 nominal - **Connector Type:** XT60 battery input, 6x USB-C power outputs, board-edge service headers - **Reliability Target (MTBF):** Prototype-grade requirements package frozen for detailed design - **Power Requirements:** Input: 12V LiFePO4 battery. Outputs: regulated 5.1V for 6 USB-C power ports and 3.3V for logic/monitoring. - **Board Size:** 150mm x 100mm - **Domain:** Power Distribution - **Connector Positions:** Battery input edge-mounted; six USB-C ports edge-mounted; board-edge service/debug connectors accessible from perimeter. - **Stars:** 2 ## Key Components ### D1 — [SMBJ15A-13-F](https://www.flux.ai/lcsc/smbj15a-13-f.md) - Manufacturer Part Number: SMBJ15A-13-F - Role Details: TVS clamp from protected 12V input to ground - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Role: Surge Protection - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ15A-13-F_SMBJ15A-13-F_C135046.html - Manufacturer Name: DIODES(美台) - Part Type: TVS - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ15A-13-F_C135046.pdf - LCSC Part Number: C135046 - Package: SMB - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - K [pin 1] ### D2 — [BZT52C15-13-F](https://www.flux.ai/adrian95/bzt52c15-13-f.md) - Role: Gate Clamp - Manufacturer Part Number: BZT52C15-13-F - Role Details: 15V zener clamp from Q1 gate to source to protect Vgs during battery transients - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds18004.pdf - Package: SOD-123 - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### F1 — [3557-15](https://www.flux.ai/jecstronic/3557-15.md) - Role Details: Battery input over-current protection using blade fuse - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p41.pdf - Current Rating: 30A - Manufacturer Name: Keystone Electronics - Part Type: Fuse - Manufacturer Part Number: 3557-15 - Package: Through Hole - Role: Fuse Holder **Pins:** - P1 [pin 1_1] - P2 [pin 2_1] ### J1 — [XT60PW-M](https://www.flux.ai/chisf/xt60pw-m.md) - Manufacturer Name: AMASS - Role: Battery Input - Role Details: 12V LiFePO4 battery input connector at board edge - Manufacturer Part Number: XT60PW-M - Datasheet URL: https://www.snapeda.com/parts/XT60PW-M/AMASS/datasheet/ - Package: THT - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Neg [pin 2] - Pos [pin 1] ### J2 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Role: USB-C Output Connector - Mount: Surface Mount - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Part Type: Connectors - Symbol Style: Parametric - Manufacturer Name: GCT - Manufacturer Part Number: USB4135-GF-A - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Package: SMT **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### J20 — [S2B-PH-SM4-TB(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-sm4-tblfsn.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: S2B-PH-SM4-TB(LF)(SN) - Role: Service Power Header - Part Type: Connector - Role Details: 2-pin service/output header carrying protected 12V and GND for bench test or auxiliary load - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf **Pins:** - P1 [pin 1] - P2 [pin 2] ### J21 — [0537800470](https://www.flux.ai/adrian95/0537800470.md) - Role Details: 4-pin service header carrying 3.3V, GND, SDA, and SCL for telemetry/debug access - Role: I2C Service Header - Manufacturer Part Number: 0537800470 - Manufacturer Name: Molex - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.molex.com/en-us/products/part-detail/537800470?display.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - MP1 [pin MP1] - MP2 [pin MP2] ### J3 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Manufacturer Part Number: USB4135-GF-A - Package: SMT - Manufacturer Name: GCT - Symbol Style: Parametric - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Part Type: Connectors - Role: USB-C Output Connector - Mount: Surface Mount **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### J4 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Manufacturer Part Number: USB4135-GF-A - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Symbol Style: Parametric - Manufacturer Name: GCT - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Package: SMT - Part Type: Connectors - Role: USB-C Output Connector - Mount: Surface Mount **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### J5 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Role: USB-C Output Connector - Manufacturer Part Number: USB4135-GF-A - Symbol Style: Parametric - Manufacturer Name: GCT - Part Type: Connectors - Package: SMT - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Mount: Surface Mount **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### J6 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Manufacturer Part Number: USB4135-GF-A - Symbol Style: Parametric - Manufacturer Name: GCT - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Package: SMT - Role: USB-C Output Connector - Part Type: Connectors - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Mount: Surface Mount **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### J7 — [USB4135-GF-A_REVA](https://www.flux.ai/cherepanyadima/usb4135-gf-areva.md) - Role Details: Power-only USB-C receptacle for downstream 5.1V power output - Mount: Surface Mount - Datasheet URL: https://gct.co/files/specs/usb4135-spec.pdf - Role: USB-C Output Connector - Part Type: Connectors - Package: SMT - Manufacturer Name: GCT - Symbol Style: Parametric - Manufacturer Part Number: USB4135-GF-A **Pins:** - CC1 [pin A5] - CC2 [pin B5] - GND_A [pin A12] - GND_B [pin B12] - SHIELD [pin S4] - SHIELD [pin S2] - SHIELD [pin S1] - SHIELD [pin S3] - VBUS_A [pin A9] - VBUS_B [pin B9] ### Q1 — [IRF9540NSTRRPBF](https://www.flux.ai/lcsc/irf9540nstrrpbf.md) - LCSC Part Number: C513187 - Package: D2PAK - Package or Case Code: D2PAK_L10.2-W9.1-P2.54-LS15.2-BL - Manufacturer Part Number: IRF9540NSTRRPBF - Manufacturer Name: Infineon(英飞凌) - Role: Reverse Polarity Protection - Role Details: High-side P-channel MOSFET for low-loss reverse polarity protection on 12V input - JLCPCB Part Class: Extended Part **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### U1 — [TPS54620RGYR](https://www.flux.ai/jecstronic/tps54620rgyr.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package: VQFN-14 - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TPS54620RGYR - Part Type: Power Management - Role Details: Main synchronous buck converter generating 5.1V rail from protected 12V input - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps54620.pdf - Role: Buck Regulator **Pins:** - BOOT [pin 13] - COMP [pin 8] - EN [pin 10] - EP [pin 15] - GND_1 [pin 2] - GND_2 [pin 3] - PH_1 [pin 11] - PH_2 [pin 12] - PVIN_1 [pin 4] - PVIN_2 [pin 5] - PWRGD [pin 14] - RT/CLK [pin 1] - SS/TR [pin 9] - VIN [pin 6] - VSENSE [pin 7] ### U10 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - Package: TSSOP-16 - Manufacturer Part Number: IP2721 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf - Role Details: USB-C CC controller configured for fixed 5V source behavior - LCSC Part Number: C603176 - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Role: USB-C Source Control - Manufacturer Name: INJOINIC(英集芯) - JLCPCB Part Class: Extended Part - Part Type: Interface - Specialized **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U11 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - LCSC Part Number: C603176 - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - Manufacturer Part Number: IP2721 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf - Role: USB-C Source Control - JLCPCB Part Class: Extended Part - Role Details: USB-C CC controller configured for fixed 5V source behavior - Package: TSSOP-16 - Part Type: Interface - Specialized - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Manufacturer Name: INJOINIC(英集芯) **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U12 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - Part Type: Interface - Specialized - JLCPCB Part Class: Extended Part - Manufacturer Name: INJOINIC(英集芯) - Role: USB-C Source Control - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Role Details: USB-C CC controller configured for fixed 5V source behavior - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - LCSC Part Number: C603176 - Package: TSSOP-16 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf - Manufacturer Part Number: IP2721 **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U13 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - Package: TSSOP-16 - JLCPCB Part Class: Extended Part - Part Type: Interface - Specialized - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Role Details: USB-C CC controller configured for fixed 5V source behavior - Role: USB-C Source Control - Manufacturer Name: INJOINIC(英集芯) - LCSC Part Number: C603176 - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - Manufacturer Part Number: IP2721 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U14 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf - Role Details: USB-C CC controller configured for fixed 5V source behavior - Manufacturer Part Number: IP2721 - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - LCSC Part Number: C603176 - Role: USB-C Source Control - Manufacturer Name: INJOINIC(英集芯) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Part Type: Interface - Specialized - Package: TSSOP-16 - JLCPCB Part Class: Extended Part **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U15 — [IP2721](https://www.flux.ai/lcsc/ip2721.md) - Role: USB-C Source Control - JLCPCB Part Class: Extended Part - Part Type: Interface - Specialized - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Manufacturer Name: INJOINIC(英集芯) - Role Details: USB-C CC controller configured for fixed 5V source behavior - LCSC Part Number: C603176 - Product Info Url: https://lcsc.com/product-detail/Interface-Specialized_INJOINIC-IP2721_C603176.html - Manufacturer Part Number: IP2721 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111335_INJOINIC-IP2721_C603176.pdf - Package: TSSOP-16 **Pins:** - CC1 [pin 13] - CC2 [pin 12] - GND [pin 5] - NC [pin 9] - NC [pin 3] - NC [pin 4] - NC [pin 10] - NC [pin 14] - NC [pin 15] - SEL [pin 11] - TST1 [pin 6] - TST2 [pin 7] - TST3 [pin 8] - VBUS [pin 16] - VBUSG [pin 1] - VIN [pin 2] ### U2 — [INA219AIDR](https://www.flux.ai/adrian95/ina219aidr.md) - Package: SOIC-8 - Part Type: Integrated Circuit - Role: Current and Voltage Monitor - Manufacturer Name: Texas Instruments - Manufacturer Part Number: INA219AIDR - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fina219 - Role Details: I2C high-side shunt monitor for input battery rail telemetry - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A0 [pin 2] - A1 [pin 1] - GND [pin 6] - SCL [pin 4] - SDA [pin 3] - VIN- [pin 7] - VIN+ [pin 8] - VS [pin 5] ### U3 — [AMS1117-3.3](https://www.flux.ai/cherepanyadima/ams1117-3p3.md) - Datasheet URL: http://www.advanced-monolithic.com/pdf/ds1117.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: Parametric - Role: Logic Regulator - Role Details: Linear regulator generating 3.3V rail for monitoring and control logic - Manufacturer Name: AMS - Manufacturer Part Number: AMS1117-3.3 - Package: SOT-223 - Part Type: Integrated Circuit **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U4 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Part Type: Integrated Circuit - Role: Per-Port Power Protection - Manufacturer Part Number: TPS25940LRVCR - Manufacturer Name: Texas Instruments - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Package: WQFN-20 - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] ### U5 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Role: Per-Port Power Protection - Package: WQFN-20 - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - Manufacturer Part Number: TPS25940LRVCR **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] ### U6 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Role: Per-Port Power Protection - Package: WQFN-20 - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - Manufacturer Part Number: TPS25940LRVCR **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] ### U7 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Part Type: Integrated Circuit - Package: WQFN-20 - Manufacturer Part Number: TPS25940LRVCR - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: Per-Port Power Protection - Manufacturer Name: Texas Instruments **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] ### U8 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Manufacturer Part Number: TPS25940LRVCR - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - Manufacturer Name: Texas Instruments - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Part Type: Integrated Circuit - Role: Per-Port Power Protection - Package: WQFN-20 **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] ### U9 — [TPS25940LRVCR](https://www.flux.ai/adrian95/tps25940lrvcr.md) - Role: Per-Port Power Protection - Package: WQFN-20 - Part Type: Integrated Circuit - Role Details: USB-C output eFuse/load switch with current limiting and reverse blocking - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25940.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPS25940LRVCR **Pins:** - ~FLT [pin 20] - DEVSLP [pin 1] - DVDT [pin 18] - EN [pin 14] - EP [pin 21] - GND [pin 16] - ILIM [pin 17] - IMON [pin 19] - IN_1 [pin 9] - IN_2 [pin 10] - IN_3 [pin 11] - IN_4 [pin 12] - IN_5 [pin 13] - OUT_1 [pin 4] - OUT_2 [pin 5] - OUT_3 [pin 6] - OUT_4 [pin 7] - OUT_5 [pin 8] - OVP [pin 15] - PGOOD [pin 2] - PGTH [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/lunatrix/12v-lifepo4-power-distribution-board](https://www.flux.ai/lunatrix/12v-lifepo4-power-distribution-board).* --- *Generated from [https://www.flux.ai/lunatrix/12v-lifepo4-power-distribution-board](https://www.flux.ai/lunatrix/12v-lifepo4-power-distribution-board)*