# VEX AI Localization Coprocessor ## Description ESP32-based localization sensor hub for Prism Robotics with four ToF ports, an IMU interface, protected USB-C programming, and protected RS485 communication to a VEX V5 Brain. ## Project Details - **Owner:** maxsr0 - **Created:** 8/6/2026 - **Last Updated:** 8/6/2026 - **Visibility:** Public - **Stars:** 1 ## Key Components ### D1 — [USBLC6-2SC6](https://www.flux.ai/vasy_skral/usblc6-2sc6~g1b.md) - Functional Group: USB-C & CP2102N - Role Details: USB 2.0 D+/D- flow-through protection - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750.pdf/files/CD00050750.pdf/jcr:content/translations/en.CD00050750.pdf - Role: ESD Protection - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 - Part Type: Protection - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: USBLC6-2SC6 - LCSC Part Number: C7519 **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D2 — [SM712](https://www.flux.ai/lcsc/sm712~9760.md) - LCSC Part Number: C502564 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407101112_MDD-Microdiode-Semiconductor-SM712_C502564.pdf - Functional Group: VEX RS485 Interface - Diode Type: Schottky Diode - Manufacturer Name: MDD - Role Details: Asymmetric RS485 TVS, pins 1/2 A/B and pin 3 GND - Part Type: TVS - Max Reverse Voltage: 20V - Forward Voltage: 0.45V to 0.55V - Manufacturer Part Number: SM712 - Product Info Url: https://lcsc.com/product-detail/TVS_MDD-Microdiode-Electronics-SM712_C502564.html - JLCPCB Part Class: Extended Part - Role: ESD Protection - Package or Case Code: SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### D3 — [SMF5.0A](https://www.flux.ai/lcsc/smf5p0a~bz6b.md) - LCSC Part Number: C2990427 - Functional Group: USB-C & CP2102N - Diode Type: Schottky Diode - Role Details: 5V VBUS surge clamp after fuse - Package or Case Code: SOD-123FL_L2.8-W1.8-LS3.6-RD - Role: TVS Protection - Forward Voltage: 0.45V to 0.55V (at 1A)V - Manufacturer Name: Liown(里阳半导体) - Datasheet URL: https://www.lcsc.com/datasheet/C2990427.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlBbUVFXRldaXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - JLCPCB Part Class: Extended Part - Max Reverse Voltage: 5V - Part Type: TVS - Manufacturer Part Number: SMF5.0A **Pins:** - 1 [pin 1] - 2 [pin 2] ### D4 — [SM6T18A](https://www.flux.ai/jecstronic/sm6t18a~t3f.md) - Manufacturer Part Number: SM6T18A - Part Type: Diode - Role: TVS Protection - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 18V standoff clamp on 12V_PROTECTED - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.mouser.com/datasheet/2/389/sm6t100a-1916590.pdf - Functional Group: Protected Power **Pins:** - A [pin 2] - K [pin 1] ### D5 — [B340AF-13](https://www.flux.ai/lcsc/b340af-13~dzrv.md) - Product Info Url: https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_DIODES_B340AF-13_B340AF-13_C172880.html - Package or Case Code: SMAF_L3.5-W2.6-LS4.7-RD - Part Type: Schottky Barrier Diodes (SBD) - Role: Flyback / Freewheeling - JLCPCB Part Class: Extended Part - LCSC Part Number: C172880 - Role Details: 40V 3A buck catch diode per TPS54331 datasheet - Manufacturer Name: DIODES(美台) - Manufacturer Part Number: B340AF-13 - Functional Group: Protected Power - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811151540_Diodes-Incorporated-B340AF-13_C172880.pdf **Pins:** - A [pin 2] - C [pin 1] ### F1 — [MF-PSML075/12-2](https://www.flux.ai/adrian95/mf-psml07512-2~j0j.md) - Manufacturer Part Number: MF-PSML075/12-2 - Functional Group: Protected Power - Manufacturer Name: Bourns Inc. - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/MF-PSML-X.pdf - Part Type: Fuse - Role Details: 0.75A hold PTC for 450mA 12V design limit - Role: Input Protection - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### F2 — [0603L100SLYR](https://www.flux.ai/lcsc/0603l100slyr~rhwp.md) - Role Details: 1A hold PTC on USB VBUS; firmware must respect source advertisement - Part Type: Resettable Fuses - Package or Case Code: R0603 - Manufacturer Part Number: 0603L100SLYR - JLCPCB Part Class: Extended Part - LCSC Part Number: C207017 - Role: Input Protection - Product Info Url: https://lcsc.com/product-detail/Others_Littelfuse_0603L100SLYR_Littelfuse-0603L100SLYR_C207017.html - Manufacturer Name: Littelfuse Inc. - Datasheet URL: https://www.littelfuse.com/assetdocs/low-rho-datasheet-update?assetguid=b786faf0-de16-4763-9d22-6b8080943caf - Functional Group: USB-C & CP2102N - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/vasy_skral/usb-c-2p0-receptacle~1xw.md) - Part Type: USB C - Symbol Style: parametric-v1 - Role Details: USB 2.0 device receptacle with independent CC pull-downs - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Manufacturer Part Number: USB4105-GF-A - Manufacturer Name: GTC - Role: USB Connector - Functional Group: USB-C & CP2102N - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 7] - D- [pin 9] - D+ [pin 10] - D+ [pin 8] - GND [pin 1] - GND [pin 16] - GND [pin 15] - GND [pin 2] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 3] - VBUS [pin 14] - VBUS [pin 4] - VBUS [pin 13] ### J2 — [4P4C](https://www.flux.ai/vasy_skral/4p4c~igm.md) - Datasheet URL: http://www.literature.molex.com/SQLImages/kelmscott/Molex/PDF_Images/987650-8441.pdf - Functional Group: VEX RS485 Interface - Part Type: Connector - Role: VEX Connector - Manufacturer Name: Molex - Manufacturer Part Number: 0424104170 - Role Details: 4P4C mapping provisional: outer 12V/GND, middle A/B; verify mating orientation **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J3 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Pin order 3V3,GND,SDA,SCL,TOF_INT,XSHUT_n - Role: ToF Header - Functional Group: Sensor Ports **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J4 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - Role Details: Pin order 3V3,GND,SDA,SCL,TOF_INT,XSHUT_n - Role: ToF Header - Functional Group: Sensor Ports - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J5 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role Details: Pin order 3V3,GND,SDA,SCL,TOF_INT,XSHUT_n - Functional Group: Sensor Ports - Role: ToF Header **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J6 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - Role Details: Pin order 3V3,GND,SDA,SCL,TOF_INT,XSHUT_n - Functional Group: Sensor Ports - Role: ToF Header - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J7 — [Pin Header 01x12 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x12-254mm-vertical~yy0.md) - Role Details: Pins 1-6 used: 3V3,GND,SDA,SCL,TOF_INT,IMU_INT; 7-12 NC - Part Type: Connector - Functional Group: Sensor Ports - Role: IMU Header - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J8 — [Pin Header 01x07 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x07-254mm-vertical~nle.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role: RS485 Breakout Header - Functional Group: VEX RS485 Interface - Role Details: Pin order 3V3,GND,TX2,RX2,RS485_DIR,A,B; breakout must be 3.3V compatible **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] ### Q1 — [DMP3018SFV-7](https://www.flux.ai/silicon-yard/dmp3018sfv-7.md) - Manufacturer Name: Diodes Incorporated - Part Type: Transistors - Manufacturer Part Number: DMP3018SFV-7 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 30V P-channel high-side ideal-diode orientation - Symbol Style: parametric-v1 - Package or Case Code: PowerDI3333-8 (Type UX) - Role: Reverse Polarity Protection - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/511bc511c099d878141710f1b363ac66a9ae904978286e83a9e6fc64a9c08724.pdf - Functional Group: Protected Power **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q2 — [MMBT3904-TP](https://www.flux.ai/jecstronic/mmbt3904-tp~rg8.md) - Role Details: 2N3904-equivalent NPN in Espressif DTR/RTS interlock circuit - Manufacturer Part Number: MMBT3904-TP - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Role: Auto-Program Control - Datasheet URL: https://www.mccsemi.com/pdf/Products/MMBT3904(SOT-23).pdf - Manufacturer Name: Micro Commercial Co - Functional Group: ESP32 Core/Boot,USB-C & CP2102N **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q3 — [MMBT3904-TP](https://www.flux.ai/jecstronic/mmbt3904-tp~rg8.md) - Manufacturer Name: Micro Commercial Co - Functional Group: ESP32 Core/Boot,USB-C & CP2102N - Role: Auto-Program Control - Datasheet URL: https://www.mccsemi.com/pdf/Products/MMBT3904(SOT-23).pdf - Role Details: 2N3904-equivalent NPN in Espressif DTR/RTS interlock circuit - Manufacturer Part Number: MMBT3904-TP - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### SW1 — [1571563-8](https://www.flux.ai/vasy_skral/1571563-8~oj.md) - Role Details: Manual reset/boot access - Functional Group: ESP32 Core/Boot - Role: User Switch - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308111-1_SWITCHES_CORE_PROGRAM_CATALOG&DocType=CS&DocLang=English - Part Type: Switch - Manufacturer Name: TE Connectivity ALCOSWITCH Switches - Manufacturer Part Number: 1571563-8 **Pins:** - ~ [pin 3] - ~ [pin 2] - ~ [pin 1] - ~ [pin 4] ### SW2 — [1571563-8](https://www.flux.ai/vasy_skral/1571563-8~oj.md) - Role Details: Manual reset/boot access - Manufacturer Name: TE Connectivity ALCOSWITCH Switches - Part Type: Switch - Manufacturer Part Number: 1571563-8 - Role: User Switch - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308111-1_SWITCHES_CORE_PROGRAM_CATALOG&DocType=CS&DocLang=English - Functional Group: ESP32 Core/Boot **Pins:** - ~ [pin 3] - ~ [pin 2] - ~ [pin 1] - ~ [pin 4] ### TP1 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role: Test Point - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Part Type: Test Point - Testpoint Size: 0.5 - Role Details: Major rail and programming signal bring-up access **Pins:** - P1 [pin 1] ### TP10 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 - Functional Group: Protected Power - Part Type: Test Point - Role Details: Accessible ground reference test point - Role: Sensing (Shunt) **Pins:** - P1 [pin 1] ### TP2 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role Details: Major rail and programming signal bring-up access - Part Type: Test Point - Testpoint Size: 0.5 - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Role: Test Point **Pins:** - P1 [pin 1] ### TP3 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role: Test Point - Part Type: Test Point - Role Details: Major rail and programming signal bring-up access - Testpoint Size: 0.5 - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N **Pins:** - P1 [pin 1] ### TP4 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role Details: Major rail and programming signal bring-up access - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Role: Test Point - Testpoint Size: 0.5 - Part Type: Test Point **Pins:** - P1 [pin 1] ### TP5 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Role Details: Major rail and programming signal bring-up access - Role: Test Point - Testpoint Size: 0.5 - Part Type: Test Point **Pins:** - P1 [pin 1] ### TP6 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Testpoint Size: 0.5 - Role Details: Major rail and programming signal bring-up access - Part Type: Test Point - Role: Test Point **Pins:** - P1 [pin 1] ### TP7 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role Details: Major rail and programming signal bring-up access - Testpoint Size: 0.5 - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Role: Test Point - Part Type: Test Point **Pins:** - P1 [pin 1] ### TP8 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role: Test Point - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Part Type: Test Point - Role Details: Major rail and programming signal bring-up access - Testpoint Size: 0.5 **Pins:** - P1 [pin 1] ### TP9 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Functional Group: Protected Power,ESP32 Core/Boot,USB-C & CP2102N - Part Type: Test Point - Testpoint Size: 0.5 - Role Details: Major rail and programming signal bring-up access - Role: Test Point **Pins:** - P1 [pin 1] ### U1 — [ESP32-WROOM-32E](https://www.flux.ai/vasyl/esp32-wroom-32e~epi.md) - Role: Processor Module - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Part Type: Integrated Circuit - Capacitor 1: 100 nF, 25 V, 1206 package x2 (Ceramic) - Manufacturer Part Number: ESP32-WROOM-32 - Resistor: 10 kΩ, 1206 package (Chip SMD) - Capacitor 2: 10 µF, 16 V, 1206 package (Ceramic) - Manufacturer Name: Espressif Systems - Symbol Style: parametric-v1 - Functional Group: ESP32 Core/Boot - Role Details: ESP32-WROOM-32E main MCU; 750mA 3V3 rail peak budget **Pins:** - EN [pin 3] - GND [pin 38] - GND [pin 39] - GND [pin 15] - GND [pin 1] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0/IO3 [pin 34] - SCK/CLK [pin 20] - SCS/CMD [pin 19] - SDI/SD1 [pin 22] - SDO/SD0 [pin 21] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - SHD/SD2 [pin 17] - SWP/SD3 [pin 18] - TXD0/IO1 [pin 35] - VDD [pin 2] ### U2 — [CP2102N-A02-GQFN24](https://www.flux.ai/lcsc/cp2102n-a02-gqfn24~cpln.md) - Role Details: QFN24 selected instead of QFN20 because DTR and RTS are both required - Datasheet URL: https://www.lcsc.com/datasheet/C1550551.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeUlZXRFZcVTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Symbol Style: parametric-v1 - Role: Logic-level Shifting - Manufacturer Part Number: CP2102N-A02-GQFN24 - Functional Group: USB-C & CP2102N - JLCPCB Part Class: Extended Part - Manufacturer Name: SILICON LABS - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: QFN-24_L4.0-W4.0-P0.50-TL-EP2.5 - Part Type: Interface - Controllers - LCSC Part Number: C1550551 **Pins:** - CTS [pin 18] - D- [pin 4] - D+ [pin 3] - DCD [pin 24] - DSR [pin 22] - DTR [pin 23] - EP [pin 25] - GND [pin 2] - GPIO.0/TXT [pin 14] - GPIO.1/RXT [pin 13] - GPIO.2/RS485 [pin 12] - GPIO.3/WAKEUP [pin 11] - NC [pin 16] - NC [pin 10] - RI/CLK [pin 1] - RSTb [pin 9] - RTS [pin 19] - RXD [pin 20] - SUSPEND [pin 17] - SUSPENDb [pin 15] - TXD [pin 21] - VBUS [pin 8] - VDD [pin 6] - VIO [pin 5] - VREGIN [pin 7] ### U3 — [TPS54331D](https://www.flux.ai/lcsc/tps54331d~hrvr.md) - Manufacturer Name: TI(德州仪器) - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: Protected Power - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL - Part Type: DC-DC Converters - Role: Buck Regulator - Role Details: 12V_PROTECTED to BUCK_5V; sized above 850mA peak - Symbol Style: parametric-v1 - LCSC Part Number: C2872693 - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps54331.pdf?HQS=dis-dk-null-digikeymode-dsf-pf-null-wwe&ts=1780380869855&ref_url=https%253A%252F%252Fwww.ti.com%252Fgeneral%252Fdocs%252Fsuppproductinfo.tsp%253FdistId%253D10%2526gotoUrl%253Dhttps%253A%252F%252Fwww.ti.com%252Flit%252Fgpn%252Ftps54331 - Manufacturer Part Number: TPS54331D **Pins:** - BOOT [pin 1] - COMP [pin 6] - EN [pin 3] - GND [pin 7] - PH [pin 8] - SS [pin 4] - VIN [pin 2] - VSENSE [pin 5] ### U4 — [TPS2121RUXR](https://www.flux.ai/lcsc/tps2121ruxr~qidv.md) - Manufacturer Name: TI(德州仪器) - Package or Case Code: VQFN-HR-12_L2.5-W2.0-P0.50-BL - Functional Group: Protected Power - Part Type: Battery Management ICs - Manufacturer Part Number: TPS2121RUXR - JLCPCB Part Class: Extended Part - Role: Power Mux - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2001181534_Texas-Instruments-TPS2121RUXR_C485916.pdf - LCSC Part Number: C485916 - Role Details: Isolates BUCK_5V and USB_5V_PROTECTED; >=1A path - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Texas-Instruments-Texas-Instruments-TPS2121RUXR_C485916.html **Pins:** - CP2 [pin 3] - GND [pin 12] - ILM [pin 10] - IN1 [pin 7] - IN2 [pin 2] - OUT [pin 1] - OUT [pin 8] - OV1 [pin 5] - OV2 [pin 4] - PR1 [pin 6] - SS [pin 11] - ST [pin 9] ### U5 — [AP63203WU-7](https://www.flux.ai/cherepanyadima/ap63203wu-7.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP63200-AP63201-AP63203-AP63205.pdf - Part Type: Diode - Functional Group: Protected Power - Role: 3V3 Regulator - Manufacturer Name: Diodes Incorporated - Symbol Style: parametric-v1 - Manufacturer Part Number: AP63203WU-7 - Role Details: Replaces thermally unsafe AMS1117; 750mA peak rail **Pins:** - BST [pin 6] - EN [pin 2] - FB [pin 1] - GND [pin 4] - SW [pin 5] - VIN [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/maxsr0/vex-ai-localization-coprocessor~pm](https://www.flux.ai/maxsr0/vex-ai-localization-coprocessor~pm).* --- *Generated from [https://www.flux.ai/maxsr0/vex-ai-localization-coprocessor~pm](https://www.flux.ai/maxsr0/vex-ai-localization-coprocessor~pm)*