PartsPlan

Manufacturer datasheet pages, tables, graphs and drawings for AI circuit design, cited by page.

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Documentation

PartsPlan is a hosted developer API (MCP server). Subscriptions pay for API usage. We are not a marketplace and don't sell parts or documents.

Your AI answers from the original datasheet

It finds the tables, graphs, drawings and conditions it needs in the manufacturer's original, and hands your AI the document and page number with them.

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Check the answer against page 6 of the original

ChatGPT conversation. The answer shows the dropout-voltage row (1 A, TYP 307 mV, MAX 450 mV) from the electrical characteristics table on page 6 of the TPS7A4701 datasheet, with a button that opens page 6 of the original.

A real ChatGPT session using PartsPlan · recorded October 2026

Header row and the two dropout-voltage rows (0.5 A 216 mV; 1 A 307 mV, max 450 mV) of the electrical characteristics table on page 6 of the TPS7A4701 datasheet

Datasheet original we checked it against Texas Instruments · TPS7A4700/TPS7A4701 (SBVS204G) · page 6

Q: Where is the TPS7A4701 dropout voltage at 1 A? → A: page 6 table, TYP 307 mV · MAX 450 mV

Connects to the AI you already use

What the AI built with PartsPlan

We gave the same AI the same tasks. These are what the side with PartsPlan connected actually produced.

The BQ25895 charger IC section of the AI-made schematic — net labels such as VBUS, SDA, SW and BAT on all 25 pins.

Charger IC schematic Part of the schematic the AI made in the test · every pin connected by a net label Major errors 0 vs 3 Without PartsPlan Same AI · same task · 90-minute cap · one run per side · the other side also used web, shell and KiCad · October 2026 Test output example — review before building

The STM32 development board with all 49 parts placed by the AI, drawn in the KiCad PCB editor — pads, part outlines and silkscreen

49-part STM32 board placement The board the AI placed in the test (KiCad 2D and 3D) · run 2 of 3 Average score (of 100, three-run average) 92.6 vs 81.7 Without PartsPlan Same AI · three runs per side, ahead in all three · the other side also used a shell and KiCad · October 2026

The two-layer board routed by the AI, drawn in the KiCad PCB editor — red front and blue back copper traces, ground pour and reference designators

Buck and LDO two-layer board The board the AI routed in the test (KiCad 2D and 3D) · run 2 of 3 (20/20) Average time (three-run average) 10.6 min vs 21.3 min Without PartsPlan Quality score 19.7 vs 20.0 (of 20, three-run average) · same AI · the other side also used a shell and KiCad · October 2026 Test output example — review before building

The BME280 footprint the AI made, shown in the KiCad footprint editor — eight pads, silkscreen outline and courtyard

BME280 footprint The footprint the AI made in the test, in the KiCad footprint editor · run 1 of 3 Average time (three-run average) 10.1 min vs 24.8 min Without PartsPlan Six parts · same AI · three runs per side · the other side also used a shell and KiCad · October 2026 Test output example — review before building

ngspice load-step response of a 12 V to 5 V buck (XL1509-5.0) at 10.8, 12 and 13.2 V input — output voltage and inductor current against ±250 mV limit lines

12 V→5 V buck load step An ngspice model the AI built from manufacturer datasheet values · values missing from the documents were stated as assumptions · shown: the re-run Time from schematic to simulation to PCB (first comparison, one run) 64 min vs 85 min Without PartsPlan Lesser-known Chinese and Taiwanese parts · all seven documents from the manufacturers · design quality on par · same AI · one run each · October 2026

With the EDA tools you use

  • In the tests the AI produced schematics, boards and footprints in KiCad format, and those files open as they are in KiCad 10 (the images above are those files and placements drawn by KiCad).
  • Package drawings and land patterns come exactly as printed, so whichever tool you draw in — EasyEDA, Altium or others — the evidence is the same original page.

Draw in EasyEDA, build with JLCPCB

Pass on the BOM exactly as EasyEDA exports it — design, datasheet checks and assembly ordering stay on the same part numbers.

  1. Design in EasyEDA Draw the circuit and export the BOM. The manufacturer column (for example MDD(辰达半导体)) comes out together with C numbers.
  2. Check with AI + PartsPlan Pass the BOM on as it is, and each line gets that maker's document — 14 of 14 lines of an actually exported BOM (October 2026, one run).
  3. Order assembly at JLCPCB The C numbers in an EasyEDA BOM are the same as JLCPCB assembly part numbers, so the checked part numbers go into the order as they are.
  • Hand the AI the BOM exactly as EasyEDA exports it, and each line, passives included, is checked against that manufacturer's original datasheet — in a comparison test with the same AI (Claude) and a 14-line BOM in EasyEDA's format, lines confirmed from the manufacturer's original: web only 8, web + PartsPlan 14 (October 2026, one run).
  • Each line comes back with the manufacturer's document and the pages to open first (pinout, package, electrical characteristics), and the AI opens those pages to review them.
  • In a test with a BOM actually exported from EasyEDA Pro and passed on unedited — 14 lines, maker names as the export writes them (for example 'MDD(辰达半导体)', with the Chinese name alongside) and C numbers included — that maker's document was found for all 14 lines (October 2026, one run).

EasyEDA Pro schematic: USB-C connector, CH340C USB-to-serial, STM32F103 microcontroller, AMS1117-3.3 regulator, two fan/port MOSFETs and passives

A comparison-test circuit made in EasyEDA Pro (25 parts). The 14-line BOM exported from this circuit was passed on unedited.

EasyEDA Pro property list, 14 rows — manufacturer column: SAMSUNG(三星), YAGEO(国巨), MDD(辰达半导体), CJ(江苏长电/长晶), 韩国韩荣, AOS, UNI-ROYAL(厚声), WCH(南京沁恒), Advanced Monolithic S…, ST(意法半导体) · manufacturer part column: CL21A106KAYNNNE through STM32F103C8T6

Captured directly in EasyEDA Pro: the test circuit's property list (the same parts as the 14-line BOM), with the manufacturer column exactly as EasyEDA writes it.

The originals your AI reads

Tables, graphs, circuits and package drawings exactly as the manufacturer printed them, with document and page number.

AO3400A datasheet page 3, Fig 1 — drain current versus drain-source voltage for gate voltages from 2 V to 10 V

MOSFET output characteristics Alpha & Omega · AO3400A · page 3 · Fig 1 Enlarge Open the manufacturer's original ↗

TLC555 datasheet page 15 — astable operation circuit (Figure 6-5) and output and capacitor voltage waveforms (Figure 6-6)

555 astable circuit and waveforms Texas Instruments · TLC555 · page 15 · Figures 6-5, 6-6 Enlarge Open the manufacturer's original ↗

BME280 datasheet page 42, Figure 20 — top, bottom and side view package dimensions (2.50 × 2.50 mm, 8-pin LGA)

Package dimensions Bosch Sensortec · BME280 · page 42 · Figure 20 Enlarge Open the manufacturer's original ↗

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