Part Audit and Datasheet Update
Worked for 6 mins 13 sec
Completed the RPX-2.5-R audit. I updated the part metadata with the official RECOM datasheet URL, manufacturer, MPN, part type, and package summary; targeted part review checks now return clean.
Detailed findings are in RPX-2.5-R Part Audit. Key flagged item: SW pins 4/5 match the datasheet names/numbers but are typed as
Input; they should ideally be Not Connected or another non-input type because the datasheet says “do not connect.”
Fix SW pins 4 and 5 to a non-input pin type per the datasheet.
Thought for 11 sec
I’ll update only the SW terminal properties for pins 4 and 5, then verify the symbol metadata and part review checks.
Worked for 49 sec
Fixed. SW pins 4 and 5 are now set to
Pin Type: Not Connected, with pin descriptions updated to: “Switch node. Do not connect per RECOM RPX-2.5 datasheet.”I verified both terminal properties afterward, and the targeted part review checks are clean.
Run ERC/DRC
Review RPX pins
Inspect SW clearance
Document NC pins
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RPX-2.5-R Part Audit
Date: 2026-05-29
Scope
Reviewed the current Flux part project for RECOM RPX-2.5-R: project metadata, schematic symbol terminals, footprint assets, pin descriptions, datasheet availability, and part review checks.
Project / Part Metadata Found
Table
| Field | Current / verified value |
|---|---|
| Project name | RPX-2.5-R |
| Manufacturer | RECOM Power |
| MPN | RPX-2.5-R |
| Description | RECOM RPX-2.5 series buck regulator module; project description notes 03/2020 manufacturer recommendations |
| Part type | Non-isolated DC/DC buck converter module / Power Management |
| Package | Thermally-enhanced QFN-style module, 9 pads |
| Datasheet URL | https://g.recomcdn.com/media/Datasheet/pdf/.fmjmSoRX/.tbad7fe03ade2d7ad5981/Datasheet-314/RPX-2_5.pdf |
| Footprint asset | CONV_RPX-2.5-R.kicad_mod |
| 3D model asset | RPX-2.5-R.step |
| Symbol asset | RPX-2.5-R RPX-2.5-R_0_0 Symbol.svg |
| Pads in layout | 9 |
The project was missing Datasheet, Manufacturer Name, and Part Type in part review. I updated the project properties with the official RECOM datasheet URL, manufacturer, MPN, part type, and package summary.
Datasheet Source
Official RECOM datasheet found via RECOM CDN:
RPX-2_5.pdf, revision 03/2020.Key Datasheet Specs
Table
| Parameter | Datasheet value |
|---|---|
| Device family | RPX-2.5 |
| Function | Buck regulator power module with integrated shielded inductor |
| Input voltage operating range | 4.5 VDC to 28 VDC; minimum recommended input is 4.5 V or VOUT × 1.3, whichever is greater |
| Absolute max VIN | -0.3 VDC to 30 VDC |
| Output voltage adjust range | 1.2 VDC to 6 VDC |
| Output current | Up to 2.5 A, derated by VIN/VOUT/ambient temperature |
| Efficiency | Up to 91% |
| Switching frequency | 550 kHz min, 750 kHz typ, 1 MHz max |
| Protection | SCP, OCP, OTP, OVP, UVLO |
| Operating ambient | -40 °C to +85 °C |
| Junction temperature | -40 °C to +125 °C |
| Package/body | Datasheet text reports 4.1 × 4.6 × 2.1 mm; drawing labels package body around 4.5 × 4.0 × 2.0 mm |
| Weight | 107 mg typ |
Required / Recommended External Components
- Input capacitor: 10 µF MLCC minimum for normal operation, placed close between VIN and GND.
- Additional input bulk capacitor: 47 µF electrolytic recommended for high transient loads; ripple current rating ≥1.25 A.
- Output capacitors: MLCCs per VOUT range:
- 1.2 V to <1.5 V: 188 µF total, 4 × 47 µF; CFF 330 pF.
- 1.5 V to <2.5 V: 141 µF total, 3 × 47 µF; CFF 220 pF.
- 2.5 V to <3.3 V: 94 µF total, 2 × 47 µF; CFF 100 pF.
- 3.3 V to <5 V: 94 µF total, 2 × 47 µF; CFF 100 pF.
- 5 V to <6 V: 47 µF total; CFF 100 pF.
- Feedback divider: recommended upper resistor RFBT = 10 kΩ; lower resistor RFBB selected from the datasheet table for target VOUT.
- CTRL: internal pull-up current source; leave floating if unused, or pull low to disable.
- Thermal pads are required to meet full specifications; thermal vias should be filled or plugged for optimum thermal performance.
Datasheet Pin Table vs Current Symbol
Table
| Pin | Datasheet name | Datasheet function | Current symbol terminal | Current pin type | Result |
|---|---|---|---|---|---|
| 1 | FB | Feedback input; sets VOUT 1.2 V to 6 V | FB | Input | Match |
| 2 | VIN | Input voltage; connect bypass capacitors to GND close to pins | VIN | Input | Match |
| 3 | VOUT | Regulated output; connect output capacitors to GND close to pins | VOUT | Output | Match |
| 4 | SW | Switch node; do not connect | SW | Input | Name/number match; pin type should ideally be Not Connected or Passive rather than Input |
| 5 | SW | Switch node; do not connect | SW__1 | Input | Name/number match; terminal designator is suffixed because duplicate SW exists; pin type should ideally be Not Connected or Passive rather than Input |
| 6 | DNC | Do not connect; must be soldered to isolated pad | DNC | Not Connected | Match |
| 7 | DNC | Do not connect; must be soldered to isolated pad | DNC__1 | Not Connected | Match; terminal designator is suffixed because duplicate DNC exists |
| 8 | GND | Ground; connect to power ground plane | GND | Power In | Match |
| 9 | CTRL | Control input; float if unused | CTRL | Input | Match |
Footprint / Package Cross-Check
- Footprint asset exists:
CONV_RPX-2.5-R.kicad_mod. - Layout contains exactly 9 pads, matching the datasheet pin count.
- Pad labels present in layout: FB, VIN, VOUT, SW, SW__1, DNC, DNC__1, GND, CTRL.
- Footprint includes fabrication/silkscreen/value/ref shapes and a 3D model asset.
- The datasheet recommended footprint page includes thermal pad and keepout notes. The layout tree confirms pad count and labels, but the available structured layout readout did not expose exact pad geometry, so exact pad dimensions/thermal via details could not be numerically verified from the tool output.
Mismatches / Items to Consider
- SW pins pin type: Pins 4 and 5 are currently
Input. Datasheet says SW pins are switch nodes and must not be connected. For a part-library symbol, these should preferably be markedNot Connectedor another non-input terminal type to avoid accidental schematic use. - Duplicate terminal suffixes: Flux displays duplicate terminals as
SW__1andDNC__1. This is expected for duplicate pad names, but pin descriptions should make clear that pins 4 and 5 are both SW and pins 6 and 7 are both DNC. - Package dimensions wording: Datasheet text lists 4.1 × 4.6 × 2.1 mm, while package drawing/marketing description uses approximately 4.5 × 4.0 × 2.0 mm. The project package summary should retain the manufacturer wording and reference the datasheet drawing for exact footprint geometry.
- Footprint geometry not fully machine-verified: Pad count and labels match, and the KiCad footprint asset is present, but exact pad sizes/locations and filled/plugged thermal via implementation were not exposed by the structured layout output.
Review Results
After updating project metadata, targeted part review checks returned no remaining warnings/errors for missing project properties or datasheet/manufacturer/terminal checks.
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