# poe 5v lm2596t ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** alsoft75 - **Created:** 7/13/2026 - **Last Updated:** 7/13/2026 - **Visibility:** Public ## Key Components ### D1 — [STPS5L60U](https://www.flux.ai/lcsc/stps5l60u~76ap.md) - Role Details: 5A 60V Schottky catch diode for LM2596 buck; 60V meets 1.25x 36V rule with limited margin for spikes - Part Type: Schottky Barrier Diodes (SBD) - Manufacturer Part Number: STPS5L60U - LCSC Part Number: C157397 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302301_STMicroelectronics-STPS5L60U_C157397.pdf - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - JLCPCB Part Class: Extended Part - Role: Flyback / Freewheeling - Product Info Url: https://lcsc.com/product-detail/_STMicroelectronics_STPS5L60U_STPS5L60U_C157397.html - Manufacturer Name: ST(意法半导体) **Pins:** - A [pin 2] - C [pin 1] ### esp32 — [ESP32-WROOM-32](https://www.flux.ai/vasyl/esp32-wroom-32~siz.md) - Manufacturer Part Number: ESP32-WROOM-32 - Role: Logic-level Shifting - Role Details: ESP32-WROOM-32 GPIO23 drives LM2596 ON/OFF control; powered from always-on 3V3 - Manufacturer Name: Espressif Systems - Part Type: RF module - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf **Pins:** - EN [pin 3] - GND [pin 39] - GND [pin 15] - GND [pin 38] - 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] ### J1 — [KF350-3.5-2P](https://www.flux.ai/lcsc/kf350-3p5-2p~p4lo.md) - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF350-3-5-2P_C474892.html - Role: Power Conversion - Manufacturer Part Number: KF350-3.5-2P - Package or Case Code: CONN-TH_P3.50_KF350-3.5-2P - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2303171000_Cixi-Kefa-Elec-KF350-3-5-2P_C474892.pdf - Manufacturer Name: KEFA(科发) - JLCPCB Part Class: Extended Part - Part Type: Screw terminal - Role Details: 36V input connector; verify source never exceeds LM2596 40V operating limit - LCSC Part Number: C474892 **Pins:** - 1 [pin 1] - 2 [pin 2] ### lm2596t-orange — [LM2596T-5.0/NOPB](https://www.flux.ai/adrian95/lm2596t-5p0nopb~p3p.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - Manufacturer Part Number: LM2596T-5.0/NOPB - Part Type: Integrated Circuit - Integrated Circuit Type: Power Management - Role: Power Conversion - Role Details: LM2596T-5.0 buck regulator; ON/OFF low or open = ON, high = OFF - Manufacturer Name: Texas Instruments **Pins:** - ~ON-OFF [pin 5] - FEEDBACK [pin 4] - GND [pin 3] - OUTPUT [pin 2] - VIN [pin 1] ### U3 — [LD1117S33TR](https://www.flux.ai/adrian95/ld1117s33tr~s0.md) - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: LD1117S33TR - Role: Power Conversion - Part Type: Integrated Circuit - Role Details: 5V-to-3.3V LDO for ESP32; about 0.85W worst-case at 500mA peak, needs copper area - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/99/3b/7d/91/91/51/4b/be/CD00000544.pdf/files/CD00000544.pdf/jcr:content/translations/en.CD00000544.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 1] - IN [pin 3] - OUT [pin 4] - OUT [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/alsoft75/poe-5v-lm2596t~oa](https://www.flux.ai/alsoft75/poe-5v-lm2596t~oa).* --- *Generated from [https://www.flux.ai/alsoft75/poe-5v-lm2596t~oa](https://www.flux.ai/alsoft75/poe-5v-lm2596t~oa)*