Part Verification and Datasheet Update

flux

I reviewed the part metadata, current part project, and the official datasheet workflow. For part-project verification, the key checks are: confirm an existing Datasheet URL, use the datasheet as the source of truth for package/pin metadata, and compare every terminal and footprint pad against the datasheet pin list .
What I found Part metadata
The project already has a Datasheet URL set, so I did not need to search the web or update that property. The existing project properties show:
  • MPN: MP2731GQC-0000-Z
  • Manufacturer: Monolithic Power Systems (MPS)
  • Package: QFN
  • Designator Prefix: IC
From the official datasheet, the device is:
  • MP2731GQC-0000-Z
  • Monolithic Power Systems, Inc.
  • QFN-26 (3.5 mm x 3.5 mm) / mechanical package name 26L FCQFN (3.5 x 3.5 mm)
  • 26 pins
  • Description: 4.5 A, I2C-controlled switch-mode battery charger with NVDC power path and USB OTG
Key specs from the datasheet
  • Input operating range: 3.7 V to 16 V
  • Sustainable voltage: 22 V
  • Charge current: up to 4.5 A
  • Switching frequency: 1.35 MHz
  • OTG output: 4.8 V to 5.5 V
  • OTG current: up to 3.0 A
  • Junction temperature: -40°C to +125°C
  • Package: QFN-26, 3.5 mm x 3.5 mm
Cross-check summary Good matches
The overall identity looks correct:
  • MPN matches the datasheet.
  • Manufacturer matches the datasheet.
  • The project is clearly intended to represent the MP2731 charger PMIC.
  • Many terminal names align with valid datasheet pins, such as IN, PMID, SW, BST, STAT, INT, NTC, VNTC, AGND, SYS, BATT, SDA, DISC, OTG, and ILIM.
Mismatches and flags
There are major symbol/footprint consistency problems relative to the datasheet:
1. Pin count mismatch
  • Datasheet: 26 pins
  • Current schematic symbol: 30 terminal components
  • Current footprint: 30 pads visible in the layout data
This is the biggest issue. The part project should match the datasheet pin count exactly, including any exposed pad only if the datasheet explicitly lists it as a pin . The extracted datasheet content did not identify an exposed pad pin for this package, so the current 30-pin symbol/30-pad footprint appears incorrect.
2. Extra pins that should not exist
The datasheet pin table ends at pin 26 , but the current symbol includes:
These are not present in the extracted datasheet pin list and should be flagged as likely erroneous.
3. Missing / misassigned repeated pins
The datasheet lists repeated functions at these exact pin numbers:
  • DP on pins 1 and 26
  • PGND on pins 5, 6, 7
  • VREF on pins 13, 14
  • SCL on pins 19, 20
In the current project:
  • Pin 14 is PGND_4, but the datasheet says pin 14 should be a second VREF.
  • Pins 28 and 29 are extra PGND entries not supported by the datasheet.
  • Pin 30 is an extra SCL entry not supported by the datasheet.
  • The symbol uses split naming such as DP_1, DP_2, SCL_1, SCL_2, which is acceptable stylistically, but the pin numbers must still match the datasheet exactly.
4. Pin descriptions are effectively missing
The current terminals have Pin Number and Pin Type, but I did not see meaningful Pin Description properties populated on the symbol terminals. The verification workflow expects short pin descriptions to be set from the datasheet for IC-style parts . So this is an incompleteness issue, even where pin names are otherwise correct.
5. Pin types are all Unspecified
Every terminal I inspected had Pin Type: Unspecified, including STAT, BST, IN, SYS, and others. For a part project, pin types should be assigned from the datasheet mapping rules, such as:
  • IN -> Power In
  • PGND, AGND -> Ground
  • STAT, INT -> Output
  • CE, OTG, DISC, ILIM, NTC -> Input
  • SDA -> Bi-Directional
  • SCL -> Input
  • SYS, possibly VREF depending on intended modeling -> likely Power Out / Output context-dependent Using exact datasheet-derived pin typing is recommended for ERC quality .
Footprint assessment
The layout contains one footprint with 30 pads, mirroring the 30 terminals in the symbol. Since the official package is QFN-26 / 26L FCQFN, this strongly suggests the footprint is also mismatched to the datasheet package definition. In other words:
  • Symbol pin count is wrong
  • Footprint pad count is wrong
  • Symbol and footprint are internally consistent with each other, but both are inconsistent with the official datasheet
Bottom line Status
  • Datasheet URL: already present, no update needed
  • MPN/manufacturer: correct
  • Description/package family: broadly correct
  • Symbol: mismatch
  • Footprint: mismatch
  • Pin descriptions: missing/incomplete
  • Pin types: missing/incomplete
Most important mismatches

Table

AreaExpected from datasheetCurrent projectResult
Pin count2630Mismatch
Package nameQFN-26 / 26L FCQFN 3.5 x 3.5 mmQFN onlyIncomplete
Pin 14VREFPGND_4Mismatch
Pins 27-30Do not existPresentMismatch
Pin descriptionsShort datasheet-derived descriptionsNot populatedMissing
Pin typesDatasheet-mappedAll UnspecifiedMissing
If you want, I can do the next step and repair the part project by:
  • correcting the terminal set to match the 26-pin datasheet,
  • fixing wrong pin names/numbers,
  • assigning proper pin types and short pin descriptions,
  • and tightening the package metadata to QFN-26 / 26L FCQFN (3.5 x 3.5 mm).
Fix the part project
Add pin descriptions
Check footprint details
Save review notes
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
    jharwinbarrozo
    16.6k
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliant
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k
  • Push Button
    Push Button
    A momentary or non-latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. SWITCH TACTILE SPST-NO 0.05A 24V
    jharwinbarrozo
    490.7k
  • TF-015
    TF-015
    Deck MicroSD card (TF card) Self bomb SMD SD Card Connectors ROHS #SDcard
    vasyl
    641.5k

MP2731GQC-0000-Z

MP2731GQC-0000-Z thumbnail
PDA's, Portable Audio/Video, Smartphones PMIC Charger IC Lithium Ion/Polymer 26-QFN (3.5x3.5) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-charger

Properties

MP2731GQC-0000-Z

Monolithic Power Systems (MPS)

Integrated Circuits

monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP2731GQC/document_id/6814/

IC

QFN

creativecommons.org/licenses/by/4.0/

Pricing & Availability

DPN

Stock

Qty 1

1

0

$0.00

1

0

$0.00

Controls