# Desirable Apricot Holodeck ## Description Optimized EMI Synchronous Buck Converter for CC/CV 4S4P Li-ion Battery Charging & Load Testing (150W, 18–60V to 16.8V/11.5A) ## Project Details - **Owner:** ladae - **Created:** 10/27/2025 - **Last Updated:** 10/27/2025 - **Visibility:** Public - **PCB Stackup:** Standard 4 Layer - **Copper Layer 2:** GND - **Copper Layer 3:** VIN - **System Architecture:** ```mermaid graph TD InputSource[Input Source] Controller[Synchronous Buck Controller] MOSFETs[MOSFETs] Inductor[Inductor] Output[Output] VoltageFB[Voltage Feedback (CV)] CurrentFB[Current Feedback (CC)] SoftStart[Soft-Start] Protections[Protections] MeasPoints[Measurement Points] InputSource --> Controller Controller --> MOSFETs MOSFETs --> Inductor Inductor --> Output Output --> VoltageFB --> Controller Output --> CurrentFB --> Controller Output --> MeasPoints SoftStart --> Controller Protections --> Controller ``` ## Key Components ### J1 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 282837-2 - Role: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role Details: Input power connector, 2-pin terminal block, 5.08mm pitch **Pins:** - 1 [pin 1] - 2 [pin 2] ### J2 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Manufacturer Part Number: 282837-2 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Name: TE Connectivity AMP Connectors - Part Type: Connector - Role Details: Output/test point connector, 2-pin terminal block, 5.08mm pitch - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### J3 — [0022232031](https://www.flux.ai/adrian95/0022232031~ox7.md) - Manufacturer Name: Molex - Part Type: Connector - Datasheet URL: https://www.molex.com/pdm_docs/sd/022232031_sd.pdf - Role: Connector - Role Details: CV adjustment potentiometer connector, 3-pin header, 2.54mm pitch - Manufacturer Part Number: 0022232031 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J4 — [0022232031](https://www.flux.ai/adrian95/0022232031~ox7.md) - Manufacturer Part Number: 0022232031 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - Datasheet URL: https://www.molex.com/pdm_docs/sd/022232031_sd.pdf - Manufacturer Name: Molex - Role Details: CC adjustment potentiometer connector, 3-pin header, 2.54mm pitch - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### Q1 — [IPT012N08N5](https://www.flux.ai/kicad-part-library/ipt012n08n5~ee.md) - Manufacturer Part Number: IPT012N08N5 - Package or Case Code: Infineon_PG-HSOF-8-1 - Role Details: High-current synchronous MOSFETs for buck converter high-side/low-side - Role: Switching - Manufacturer Name: Infineon Technologies AG - Datasheet URL: http://www.infineon.com/dgdl/Infineon-IPT012N08N5-DS-v02_01-EN.pdf?fileId=5546d4624a75e5f1014aca59127a1eb9 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — [IPT012N08N5](https://www.flux.ai/kicad-part-library/ipt012n08n5~ee.md) - Package or Case Code: Infineon_PG-HSOF-8-1 - Role: Switching - Manufacturer Name: Infineon Technologies AG - Manufacturer Part Number: IPT012N08N5 - Datasheet URL: http://www.infineon.com/dgdl/Infineon-IPT012N08N5-DS-v02_01-EN.pdf?fileId=5546d4624a75e5f1014aca59127a1eb9 - Role Details: High-current synchronous MOSFETs for buck converter high-side/low-side **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U1 — [TPS54360DDA](https://www.flux.ai/kicad-part-library/tps54360dda~4db.md) - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: http://www.ti.com/lit/ds/symlink/tps54360.pdf - Role Details: Synchronous buck controller with CC/CV regulation - Package or Case Code: TI_SO-PowerPAD-8_ThermalVias - Role: Power Conversion - Manufacturer Part Number: TPS54360DDA **Pins:** - BOOT [pin 1] - COMP [pin 6] - EN [pin 3] - FB [pin 5] - GND [pin 7] - GNDPAD [pin 9] - RT/CLK [pin 4] - SW [pin 8] - VIN [pin 2] ### U2 — [INA180A1](https://www.flux.ai/kicad-part-library/ina180a1~rtc.md) - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: INA180A1 - Role: Sensing (Shunt) - Datasheet URL: http://www.ti.com/lit/ds/symlink/ina180.pdf - Role Details: Current sense amplifier for shunt resistor feedback up to 15A - Package or Case Code: SOT-23-5 **Pins:** - - [pin 4] - + [pin 3] - ~ [pin 1] - GND [pin 2] - V+ [pin 5] ### U3 — [MAX15012BASA+](https://www.flux.ai/adrian95/max15012basaplus~3gy.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role Details: High/low side MOSFET gate driver - Role: Switching - Manufacturer Name: Maxim Integrated - Manufacturer Part Number: MAX15012BASA+ - Datasheet URL: https://datasheet.octopart.com/MAX15012BASA%2B-Maxim-Integrated-datasheet-8545901.pdf **Pins:** - BST [pin 2] - DH [pin 3] - DL [pin 8] - GND [pin 7] - HS [pin 4] - IN_H [pin 5] - IN_L [pin 6] - VDD [pin 1] ### U4 — [LTC4359HDCB#TRPBF](https://www.flux.ai/jecstronic/ltc4359hdcbtrpbf~m31.md) - Role Details: Ideal diode reverse polarity protection device - Manufacturer Part Number: LTC4359HDCB#TRPBF - Datasheet URL: http://www.analog.com/media/en/technical-documentation/data-sheets/ltc4359.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Analog Devices Inc. - Role: Reverse Polarity Protection - Part Type: Integrated Circuit **Pins:** - *SHDN [pin 5] - EPAD [pin 7] - GATE [pin 2] - IN [pin 4] - OUT [pin 1] - SOURCE [pin 3] - VSS [pin 6] ### U5 — [LM393ADR](https://www.flux.ai/jharwinbarrozo/lm393adr~c3x.md) - Manufacturer Part Number: LM393ADR - Part Type: Integrated Circuit - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_UMW-Youtai-Semiconductor-Co---Ltd--LM393ADR_C404321.pdf - Role: Protection - Manufacturer Name: UMW - Role Details: Window comparator for over-voltage and under-voltage lockout **Pins:** - 1 | 1OUT - 2 | 1IN- - 3 | 1IN+ - 4 | GND - 5 | 2IN+ - 6 | 2IN- - 7 | 2OUT - 8 | VCC *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ladae/desirable-apricot-holodeck~fq](https://www.flux.ai/ladae/desirable-apricot-holodeck~fq).* --- *Generated from [https://www.flux.ai/ladae/desirable-apricot-holodeck~fq](https://www.flux.ai/ladae/desirable-apricot-holodeck~fq)*