Part Datasheet Review and Audit
Thought for 1 min 52 sec
I reviewed the current part data for LTC7891RUFDM#PBF and found:
Current part summary
Table
| Field | Result |
|---|---|
| MPN | LTC7891RUFDM_PBF / ordering variant LTC7891RUFDM#PBF |
| Manufacturer | Analog Devices |
| Description | 100 V, Low IQ, Synchronous Step-Down Controller for GaN FETs |
| Package in project | 28-QFN, 0.8 mm body height noted |
| Symbol pin count | 29 terminals including exposed pad as ground |
| Footprint asset | QFN50P500X400X80-29N.kicad_mod |
| Existing datasheet property | Not found |
Table
| Source | URL |
|---|---|
| Analog Devices datasheet PDF | Datasheet |
I can update the part’s Datasheet property to that official Analog Devices PDF.
Early audit notes from the datasheet cross-check
Table
| Check | Result | Risk |
|---|---|---|
| Package family | Matches: 28-lead side-wettable QFN, 4 mm x 5 mm | Low |
| Terminal count | Matches: 28 pins + exposed pad = 29 | Low |
| Exposed pad | Matches: exposed pad is ground and must be soldered to PCB ground | Low |
| Footprint naming | Matches the expected 5.0 mm x 4.0 mm x 0.8 mm, 0.5 mm pitch style | Low |
| Symbol pin numbering | Appears consistent with datasheet numbering | Low |
| Functional pin typing | Some pins are marked generically in the symbol; not necessarily wrong, but worth tightening later for ERC quality | Medium |
Table
| Category | Key items |
|---|---|
| Electrical characteristics | VIN 4 V to 100 V, VOUT 0.8 V to 60 V, IQ 5 µA typ at 48 VIN to 5 VOUT, programmable 100 kHz to 3 MHz |
| Absolute max | VIN/RUN to 100 V, BOOST to 106 V, EXTVCC to 30 V, DRVCC/INTVCC/BSTVCC to 6 V, SENSE+/SENSE- to 65 V |
| Operating range | TJ = -40 C to +150 C |
| Special features | Optimized for GaN FETs, smart bootstrap, near-zero dead time, adjustable gate-drive voltage, spread-spectrum, PLL sync |
| Important package rule | Exposed pad must be soldered to PCB GND for rated electrical and thermal performance |
If you apply the change, I’ll continue with the full datasheet metadata extraction and the detailed symbol/footprint mismatch audit.
To get started, talk to Flux or create a New Document.
