# odyssey-aud ## Description Phase 1 Solder-Free ESP32-S3 Telephone Audio Guestbook Adapter ## Project Details - **Owner:** spenceriam - **Created:** 11/24/2025 - **Last Updated:** 11/25/2025 - **Visibility:** Public - **Initial Schematic Review Findings:** Decoupling: C1, C2, and C3 (AC0402KPX7R7BB104, 100 nF 0402 X7R 16 V MLCC) are placed on VBAT (max ~4.2 V, ≈26% of rating), 3.3 V (≈20.6% of rating), and SPKVDD (5 V, ≈31.3% of rating) nets. All operate below the 60% derating threshold; electrical and physical suitability confirmed for all rails. - **connector_zone_assignments:** {"J2": {"zone": "digital", "edge": "bottom", "position": "center"}, "J1": {"zone": "digital", "edge": "right", "position": "mid-height"}, "J3": {"zone": "digital", "edge": "bottom", "position": "left-corner"}} - **Board Width:** 50mm - **Schematic Review Recommendations:** No further adjustments needed for decoupling or pull-up passives. All decoupling capacitors (C1, C2, C3: AC0402KPX7R7BB104) and the pull-up resistor (R1: RC0402FR-0710KL) meet electrical, mechanical, and derating requirements across all rails; values, footprints, and manufacturer part numbers confirmed as correct. All review findings complete. - **USB_diff_pair_impedance:** 90 Ω differential - **Board Height (mm):** 80mm - **EMI_keepouts:** EMI keepout regions are required around both U7 (TPS61033 boost converter) and U3 (MAX98357A Class-D amplifier) to control radiated and conducted EMI, as these are high-frequency and sensitive analog/power components. Ensure no high-speed digital traces, large copper pours, or aggressive power switching traces are routed within the defined keepout areas around these components. The precise keepout geometry will be defined for each part at the detailed layout stage, but property documentation serves as a metadata enforcement and review reminder. - **Decoupling Capacitors Derating Verification:** C1, C2, and C3 (AC0402KPX7R7BB104, 100nF 0402 X7R 16V MLCC) operate on VBAT (max ~4.2V, 26% of rating), 3.3V (21% of rating), and SPKVDD (5V, 31% of rating). All are below the 60% derating margin; confirmed electrically and physically suitable for each rail. - **Power Requirements:** USB - **Board Width (mm):** 50mm - **placement_zones.screw_terminals:** {"origin": [0, 40], "size": [50, 40], "units": "mm", "keepout_margin": 2, "keepout_objects": []} - **Initial Schematic Review Findings:** Decoupling: C1, C2, and C3 (AC0402KPX7R7BB104, 100nF 0402 X7R 16V MLCCs) are applied to VBAT, 3.3V, and SPKVDD rails as per reference designators, with operating voltage (max 5V) ≤32% of rating (16V), far under 60% margin. Physical and electrical suitability confirmed for all relevant nets. Pull-up: R1 (RC0402FR-0710KL, 10kΩ 0402 1%) is configured as a pull-up for the switchhook GPIO. Standard 0402 1% 1/16W power rating (Pmax ≈ 62.5mW) is far above worst-case dissipation (I²R = (3.3V/10k)²×10kΩ ≈ 1.1mW). Both decoupling and pull-up pass review and match best practices. No issues found; footprint and MPN assignments align with requirements. Recommendations: No further changes needed for decoupling or pull-up as specified. - **connector_zone_annotations:** USB-C (J2) bottom edge, microSD (J1) right edge mid-height, JST-PH (J3) bottom-left; digital zone: origin [0,0], size [50,40] mm; audio zone (future screw terminals): origin [0,40], size [50,40] mm; digital/audio separation enforced via ground/EMI constraints. - **Power Requirements:** Battery - **placement_zones.audio:** {"origin":[0,40],"size":[50,40],"units":"mm","keepout_margin":2,"keepout_objects":["U2","U3","U7"]} - **Software:** Arduino - **System Architecture:** graph TD ESP32S3([ESP32-S3 MCU]) NAU8814([NAU8814 Mono Codec]) AMP([Class-D Mono Amp 1W]) uSD([microSD Socket]) BAT([Li-ion Battery]) BOOST([5V Boost Converter]) CHARGER([USB-C Li-ion Charger IC]) LDO([3.3V LDO Regulator]) USB([USB-C Connector]) TVS([Bidirectional TVS ESD]) TERM_SW([Low-profile Screw Terminal: Switchhook]) TERM_HS([Low-profile Screw Terminal: Handset]) JST([JST-PH 2-pin Battery Conn.]) SPK([SPK Output]) USB -- Power+Data --> CHARGER USB -- D+/D- --> TVS --> ESP32S3 CHARGER --VBAT--> BAT CHARGER --VBAT--> LDO LDO --3.3V AVDD/DVDD--> ESP32S3 LDO --3.3V AVDD/DVDD--> NAU8814 BOOST --5V SPKVDD--> AMP ESP32S3 --I2S--> NAU8814 NAU8814 --Audio Out--> AMP AMP --BTL Out--> SPK ESP32S3 --SDIO/SPI--> uSD ESP32S3 --GPIO (w/PU)--> TERM_SW ESP32S3 --Handset Audio--> TERM_HS BAT --Power--> JST - **ground_separation:** Enforce isolated audio ground in upper half (audio zone) with a single star-join to digital ground (digital zone). Ensures continuous, isolated audio GND plane in the upper PCB region, meeting EMI/grounding constraints as per the EMI and PCB layout plan. - **D1_proximity_requirement:** Ensure footprint of D1 is within 5 mm of J2 - **BOM CSV:** Designator, Part UID, MPN, Description, Quantity, Package, Manufacturer, LCSC PN, Digi-Key PN, Mouser PN, Arrow PN, Verical PN, TME PN U1,2e0d6907-2455-4145-b64b-e4770c222e41,ESP32-S3-WROOM-1U-N8R2,ESP32-S3 MCU module with WiFi and Bluetooth,1,F_XCVR_ESP32-S3-WROOM-1U,Espressif Systems,,,3.35002,6.71,,7.54 U2,1873e0df-202c-4a16-9632-bfa03fa115b1,NAU8810YG,Mono audio codec I2S interface,1,NAU8810YG,NUVOTON,,,1.6473,, U3,f98a7e22-05c3-4940-bbc7-95d5323ddf46,MAX98357AETE+T,1 W Class-D BTL speaker amplifier,1,FP_QFN50P300X300X80-17N,Analog Devices Inc./Maxim Integrated,,1.395,1.55,3.19,1.529,1.5029 U4,8562b91b-486c-4f8a-94c4-ef2dff1eb658,MP2667,USB-C Li-ion charger IC,1,QFN-10_2MMx2MM_MNP,Monolithic Power Systems,, U5,093c382b-5e3b-4c3c-8d8e-4ac903db6559,DW01A,Single-cell Li-ion protection IC,1,SOT-23-6,Texas Instruments Inc.,,0.0159,,0.0588,, U6,9d13aed7-1a48-4881-a5f4-611e3bdf4966,MIC5504-3.3YM5,3.3V LDO regulator,1,SOT-23-5,Microchip Technology Inc.,,0.166,, U7,c2925c85-d3b1-4fae-bdc9-4ce220e42451,TPS61033,5V boost converter,1,SOT-5X3-8-DRL-XTP,Texas Instruments,,,, J1,928ce84b-7396-43c1-84ea-7d71cff06c30,MEM2067-02-180-00-A,microSD socket hot-swap,1,FP_GCT_MEM2067-02-180-00-A_REVB,GCT,,,0.8803,1.06,1.0717,0.5755 J2,c9377ec0-4cec-44c2-9c97-ae9aee2739e2,632723130112,USB-C connector,1,632723130112,Würth Elektronik,,2.87,3.54801,3.42,, C1,46707925-236f-106b-e676-afa2757aa1d6,Generic Capacitor,100nF decoupling capacitor,1,C_0402_1005Metric,,,<blank>,<blank>,<blank>,<blank>,<blank> C2,46707925-236f-106b-e676-afa2757aa1d6,Generic Capacitor,100nF decoupling capacitor,1,C_0402_1005Metric,,,<blank>,<blank>,<blank>,<blank>,<blank> C3,46707925-236f-106b-e676-afa2757aa1d6,Generic Capacitor,100nF decoupling capacitor,1,C_0402_1005Metric,,,<blank>,<blank>,<blank>,<blank>,<blank> R1,b67f50a9-ae5e-10ea-9c3c-d377e2ab3b2,Generic Resistor,10kΩ pull-up resistor,1,R_0402_1005Metric,,,<blank>,<blank>,<blank>,<blank>,<blank> D1,7ab25beb-6683-4ab5-9618-efa1bf84f36a,ESD321DPYR,USB D+/D− bidirectional TVS diode,1,D_0402_1005Metric,Texas Instruments,,,0.1581,0.085,0.54,0.0903,0.2802 - **Review Status: Decoupling and Pull-up:** No issues found. No changes required for C1/C2/C3 decoupling or R1 pull-up. Choices align with electrical, mechanical, and derating best practices. - **Domain:** Consumer Electronics - **power_trace_width_classes:** Project requires special trace width classes for VBAT and 5 V nets to ensure low voltage drop and adequate current handling; values to be defined in layout stage. - **Connectivity:** USB - **board_height_limit:** <10 mm - **Pull-up Resistor Specification:** R1 (RC0402FR-0710KL, 10kΩ 0402 1% 1/16W) assigned as pull-up for switchhook GPIO on the 3.3V rail. Max dissipation ≈1.1mW is ≤60% of 62.5mW rated power; confirmed appropriate for application. - **ASCII Block Diagram:** +--------------------+ +------------------+ +------------------+ | USB-C Connector |-- Power+Data-->| Charger IC |--VBAT-->| Li-ion Battery | +--------------------+ | +------------------+ | +------------------+ | | | | | +---------------+ | +------------------+ | | TVS ESD | | | microSD Socket | | +-------+-------+ | +------------------+ | | | | | D+/D- v v | | +-------------+ +--------------+ | +---------------->| ESP32-S3 |---| Codec (NAU88x)|------+ | MCU | +--------------+ +--+----------+ | | SDIO/SPI, I2S, GPIO, etc. | +----------------+------------------------+ | | | v v v +-----------+ +----------------+ +-------------------------+ | Switchhook| | Handset Audio | | Class-D Amplifier (1W) | +-----------+ +----------------+ +-------------------------+ | | | +----------+ +-----------+ | | Low-Prof | | Low-Prof | v | Terminal | | Terminal | +-----------+ +----------+ +-----------+ | Speaker | +-----------+ [Power system not shown: BAT->LDO->3.3V rails (AVDD/DVDD), BAT->Boost->5V SPKVDD] - **stackup:** Standard 4-Layer: Top layer – component placement and high-speed routing (USB-C, edge connectors); Inner Layer 1 – digital ground/power plane with star-point grounding for ESP32 and digital circuitry; Inner Layer 2 – analog/audio ground and power plane isolated for audio signals; Bottom layer – mixed routing and placement for EMI-sensitive components - **Board Height:** 80mm - **Connectivity:** WiFi - **Connectivity:** Bluetooth - **placement_zones.digital:** {"origin":[0,0],"size":[50,40],"units":"mm","keepout_margin":2,"keepout_objects":["U1","J2","J1","EN","IO0","TXD0","RXD0"]} - **Decoupling and Pull-up Review Status:** All decoupling (C1, C2, C3) and pull-up (R1) components operate well within voltage and power derating limits; no issues found, no changes required. Current design meets best practices. - **routing_rules_documentation:** Routing Rules Summary: 1. EMI Constraints: EMI keepouts are enforced around U7 (TPS61033) and U3 (MAX98357A) per metadata. Aggressive switching and high-speed signals must avoid these regions. PCB stackup separates digital and audio zones with a star-joined audio ground in the upper half of the board. 2. USB Differential Pairs: USB D+/D− nets from J2 require 90 Ω differential impedance throughout, minimum stubs, and must avoid routing across zone boundaries and within EMI keepout zones. D1 (ESD321DPYR) must be placed within 5 mm of J2. 3. Power Delivery: VBAT and 5 V nets (boost output) require wide traces as defined in power_trace_width_classes; maintain minimum voltage drop. All decoupling capacitors have been reviewed for derating and placement per reference. ## Key Components ### D1 — [ESD321DPYR](https://www.flux.ai/corvus96/esd321dpyr~2s.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/esd321.pdf?HQS=dis-dk-null-digikeymode-dsf-pf-null-wwe&ts=1690491326127&ref_url=https%253A%252F%252Fwww.ti.com%252Fgeneral%252Fdocs%252Fsuppproductinfo.tsp%253FdistId%253D10%2526gotoUrl%253Dhttps%253A%252F%252Fwww.ti.com%252Flit%252Fgpn%252Fesd321 - Manufacturer Name: Texas Instruments - Manufacturer Part Number: ESD321DPYR - Role Details: Bidirectional TVS diode for USB D+/D− ESD protection (<1 pF) - Role: Protection **Pins:** - GND [pin 2] - IO [pin 1] ### J1 — [MEM2067-02-180-00-A](https://www.flux.ai/adrian95/mem2067-02-180-00-a~ilf.md) - Manufacturer Part Number: MEM2067-02-180-00-A - max_height: <10 mm>mm - Role Details: microSD card socket, hot-swap - Manufacturer Name: GCT - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://gct.co/files/specs/mem2067-spec.pdf - Role: Connector - Part Type: Connector **Pins:** - CD/DAT3 [pin 2] - CLK [pin 5] - CMD [pin 3] - DAT0 [pin 7] - DAT1 [pin 8] - DAT2 [pin 1] - SHIELD [pin 12] - SHIELD [pin 9] - SHIELD [pin 11] - SHIELD [pin 10] - VDD [pin 4] - VSS [pin 6] ### J2 — [632723130112](https://www.flux.ai/adrian95/632723130112~90z.md) - Role Details: USB-C receptacle for power and data - Datasheet URL: https://www.we-online.com/components/products/datasheet/632723130112.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Part Number: 632723130112 - Max Height: <10mm - Role: Connector - Manufacturer Name: Würth Elektronik **Pins:** - ~ [pin S3] - ~ [pin S2] - ~ [pin S4] - ~ [pin S1] - CC [pin A5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin A1] - GND1 [pin A12] - GND2 [pin B1] - GND3 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - SSRXN1 [pin B10] - SSRXN2 [pin A10] - SSRXP1 [pin B11] - SSRXP2 [pin A11] - SSTXN1 [pin A3] - SSTXN2 [pin B3] - SSTXP1 [pin A2] - SSTXP2 [pin B2] - VBUS [pin A4] - VBUS1 [pin A9] - VBUS2 [pin B4] - VBUS3 [pin B9] - VCONN [pin B5] ### J3 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Role: Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Role Details: JST-PH 2-pin battery socket - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### TP1 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Package or Case Code: 5019 - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Keystone Electronics - Role Details: Programming pad for part U1, pin EN - Role: Test Point **Pins:** - 1 [pin 1] ### TP2 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Role: Test Point - Role Details: Programming pad for part U1, pin IO0 - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP3 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Part Number: 5019 - Role Details: Programming pad for part U1, pin TXD0 - Role: Test Point **Pins:** - 1 [pin 1] ### TP4 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Role Details: Programming pad for part U1, pin RXD0 - Manufacturer Name: Keystone Electronics - Role: Test Point - Package or Case Code: 5019 - Manufacturer Part Number: 5019 - Part Type: Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP5 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Role: Test Point - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Programming pad for part U1, pin GND - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### U1 — [ESP32-S3-WROOM-1U-N8R2](https://www.flux.ai/vasyl/esp32-s3-wroom-1u-n8r2~p5z.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Role: Microcontroller - Role Details: Main MCU with USB 2.0 Full-Speed, WiFi, Bluetooth - Manufacturer Part Number: ESP32-S3-WROOM-1U-N8R2 - Part Type: RF Transceiver Modules and Modems - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 1] - GND__1 [pin 40] - GND__10 [pin 41_9] - GND__2 [pin 41_1] - GND__3 [pin 41_2] - GND__4 [pin 41_3] - GND__5 [pin 41_4] - GND__6 [pin 41_5] - GND__7 [pin 41_6] - GND__8 [pin 41_7] - GND__9 [pin 41_8] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U2 — [NAU8810YG](https://www.flux.ai/lcsc/nau8810yg~nmcf.md) - Role: Modulation / Demodulation - Role Details: Mono audio codec (I2S interface) - JLCPCB Part Class: Extended Part - Part Type: Codec ICs - Manufacturer Name: NUVOTON(新唐) - Manufacturer Part Number: NAU8810YG - Package or Case Code: QFN-20_L4.0-W4.0-P0.5-EP2.0 - LCSC Part Number: C2613464 **Pins:** - ADCOUT [pin 6] - BCLK [pin 9] - DACIN [pin 7] - EP [pin 21] - FS [pin 8] - MCLK [pin 10] - MIC- [pin 19] - MIC+ [pin 20] - MICBIAS [pin 1] - MOUT [pin 13] - SCLK [pin 11] - SDIO [pin 12] - SPKOUT- [pin 16] - SPKOUT+ [pin 14] - VDDA [pin 2] - VDDD [pin 4] - VDDSPK [pin 17] - VREF [pin 18] - VSSA [pin 3] - VSSD [pin 5] - VSSSPK [pin 15] ### U3 — [MAX98357AETE+T](https://www.flux.ai/adrian95/max98357aeteplust~wk.md) - Manufacturer Part Number: MAX98357AETE+T - Role Details: 1 W mono Class-D BTL speaker amplifier - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/max98357a-max98357b.pdf - Role: Amplification - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices Inc./Maxim Integrated - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~SD_MODE [pin 4] - BCLK [pin 16] - DIN [pin 1] - GAIN_SLOT [pin 2] - GND_1 [pin 3] - GND_2 [pin 11] - GND_3 [pin 15] - LRCLK [pin 14] - N.C._1 [pin 5] - N.C._2 [pin 6] - N.C._3 [pin 12] - N.C._4 [pin 13] - OUTN [pin 10] - OUTP [pin 9] - THERMAL_PAD [pin 17] - VDD_1 [pin 7] - VDD_2 [pin 8] ### U4 — [MP2667](https://www.flux.ai/monolithicpower/mp2667~lwg.md) - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/m/p/mp2667.jpg - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/3391?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Manufacturer Name: Monolithic Power Systems - Manufacturer Part Number: MP2667 - Role Details: USB-C Li-ion battery charger IC, up to 1 A charge current - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP2667 - Package or Case Code: QFN-10_2MMx2MM_MNP - Role: Power Conversion **Pins:** - BATT [pin 9] - BATT [pin 8] - GND [pin 5] - IN [pin 1] - INT [pin 3] - NTC [pin 2] - SCL [pin 6] - SDA [pin 7] - SYS [pin 10] - VDD [pin 4] ### U5 — [DW01A](https://www.flux.ai/kicad-part-library/dw01a~5d.md) - Manufacturer Name: Texas Instruments Inc. - Role: Protection - Package or Case Code: SOT-23-6 - Role Details: Single-cell Li-ion battery protection (overcharge, overdischarge, overcurrent) - Manufacturer Part Number: DW01A - Datasheet URL: https://hmsemi.com/downfile/DW01A.PDF **Pins:** - CS [pin 2] - GND [pin 6] - OC [pin 3] - OD [pin 1] - TD [pin 4] - VCC [pin 5] ### U6 — [MIC5504-3.3YM5](https://www.flux.ai/kicad-part-library/mic5504-3p3ym5~ud0.md) - Role: Power Conversion - Role Details: 3.3 V LDO regulator for AVDD and DVDD rails - Manufacturer Name: Microchip Technology Inc. - Package or Case Code: SOT-23-5 - Datasheet URL: http://ww1.microchip.com/downloads/en/DeviceDoc/MIC550X.pdf - Manufacturer Part Number: MIC5504-3.3YM5 **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U7 — [TPS61033](https://www.flux.ai/jecstronic/tps61033~3wf.md) - Manufacturer Part Number: TPS61033 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 5 V boost converter for SPKVDD rail - Role: Power Conversion - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps61033.pdf - Manufacturer Name: Texas Instruments **Pins:** - EN [pin 2] - FB [pin 5] - GND [pin 6] - MODE [pin 3] - PG [pin 4] - SW [pin 7] - VIN [pin 1] - VOUT [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/spenceriam/odyssey-aud~5a](https://www.flux.ai/spenceriam/odyssey-aud~5a).* --- *Generated from [https://www.flux.ai/spenceriam/odyssey-aud~5a](https://www.flux.ai/spenceriam/odyssey-aud~5a)*