PCB Design Review

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Using Knowledge Base Tool.

Starting 8 component searches

Dispatching Library tool to find: "Schottky Diode"

Dispatching Library tool to find: "4.7uH Inductor"

Dispatching Library tool to find: "10uF Capacitor"

Dispatching Library tool to find: "100nF Capacitor"

Dispatching Library tool to find: "P-Channel MOSFET"

Searching: "TPS61222"

Searching: "MCP1640"

Searching: "TPS61023"

Creating search plan for: "Schottky Diode"

Creating search plan for: "4.7uH Inductor"

Creating search plan for: "10uF Capacitor"

Creating search plan for: "100nF Capacitor"

Creating search plan for: "P-Channel MOSFET"

Searching: "Generic 100nF capacitor for decoupling applications in power and signal circuits. The part should be a ceramic capacitor suitable for general-purpose bypassing and filtering, with standard characteristics and widely available across vendors."

Searching: "SMD 100nF capacitor in a 0603 package for high-frequency decoupling on digital and analog circuits. Key requirements include stable capacitance, low ESR, and compliance with standard surface-mount footprints for PCB assembly."

Searching: "Precision 100nF capacitor with C0G (NP0) dielectric in a 0603 package, intended for high-frequency filtering and decoupling on a specified 5V rail. The capacitor must have low temperature coefficient, low ESR, and be ideally suited for noise-sensitive and performance-critical circuits."

Found 56 results.

Searching: "100nF Capacitor"

Searching: "Searching for a P-Channel MOSFET intended for use in PCB-mounted power switching circuits. The focus is on a standard P-Channel device for general purpose applications such as battery management or motor control, where specifications like on-resistance, voltage rating, and current handling are key considerations."

Searching: "Looking for a surface-mount P-Channel MOSFET suitable for compact PCB designs. The part should be capable of handling moderate to high current, have low on-resistance, and operate efficiently in power switching applications. This search is aimed at finding components available in SMD packages for modern applications."

Searching: "Seeking a P-Channel MOSFET with low on-resistance characteristics for efficient power management in switching circuits. Key specifications include high-speed switching and low conduction losses, useful in battery-operated or motor control environments where thermal performance is important."

Searching: "Targeting a P-Channel MOSFET that can operate at around 30V with a current rating of approximately 10A in an SMD package. This query is focused on tighter electrical specifications for designs that require precise power control, such as in automotive or industrial applications where reliable high current switching is critical."

Searching: "Searching for a PCB-mounted 4.7 microhenry inductor, used typically in switching regulator circuits such as buck converters. The candidate inductor should be suitable for high frequency operation with a standard SMD footprint and efficient filtering capabilities."

Searching: "Looking for a surface mount inductor with an inductance of 4.7 microhenry, primarily for use in DC/DC converter circuits. Must have low core losses, support high switching frequencies, and have a compact package for PCB integration."

Searching: "Identifying a power inductor with a value of 4.7 microhenry that is optimized for power supply filtering. The part is expected to handle the currents typical in buck converter or similar applications, and should be available in SMD technology with a robust design for high efficiency."

Searching: "Searching for a high frequency 4.7 microhenry inductor designed for power conversion applications. The component should provide low ESR and minimal losses under high frequency conditions, making it ideal for switching regulator and DC/DC converter designs on a PCB."

Searching: "A generic 10 microfarad capacitor intended for typical decoupling or filtering applications on power rails. No specific package or voltage rating specified; broadly applicable for many PCB circuits with moderate voltage ratings (e.g., 16V)."

Searching: "A surface mount 10uF capacitor suitable for board-level decoupling and power filtering. The capacitor should have a moderate voltage rating (around 16V to 25V), low ESR characteristics, and be available in common SMD footprints such as 1206 or 0805."

Searching: "A high-performance 10 microfarad capacitor with X5R dielectric characteristics for improved temperature stability and low ESR in high-frequency decoupling applications. Ideal for use on a 5V or similar regulated rail, with potential voltage ratings ranging from 16V to 25V and common surface mount package options."

Found 76 results.

Searching: "4.7uH Inductor"

Found 71 results.

Searching: "P-Channel MOSFET"

Found 60 results.

Searching: "10uF Capacitor"

Searching: "A generic Schottky diode intended for low forward voltage drop and high-speed switching applications, suitable for power rectification and reverse polarity protection in various designs without specific current or voltage constraints."

Searching: "A Schottky diode focused on rectification functions in power supply circuits. Looking for parts with standard performance metrics such as moderate current handling (around 1A to 3A) and typical reverse voltage ratings, used in both through-hole and surface-mount applications."

Searching: "A lower current Schottky diode designed for efficient rectification with a forward current rating near 1A and a reverse voltage rating around 40V. Ideal for circuits requiring low conduction loss and high-frequency switching, such as board-level power management."

Searching: "A surface mount Schottky diode tailored for compact PCB designs. Emphasis on low package profiles (e.g., SMA, SMB) and reliable high-speed switching performance in applications needing efficient power conversion and protective functionalities."

Searching: "A highly specific, surface mount Schottky diode rated for approximately 1A forward current and 40V reverse voltage. Suitable for applications such as rail protection and efficient rectification in space-constrained, modern PCB designs with critical efficiency and low-drop performance requirements."

Found 100 results.

Searching: "Schottky Diode"

Creating search plan for: "4.7uH Inductor"

Searching: "Searching for a PCB-mounted inductor with a nominal inductance of 4.7 microhenries for general filtering applications. The part should be suited for switching power supplies such as buck converters, emphasizing low DC resistance and high-frequency performance."

Searching: "Looking for a surface-mount inductor with a 4.7µH inductance value for use in high-frequency DC-DC converter circuits. Prioritize parts that offer low core losses and are available in standard SMD packages suitable for PCB assembly."

Searching: "Need a 4.7 microhenry inductor in the 0603 SMD package for a compact, high-efficiency switching regulator design. The part should handle moderate currents and provide low resistance, making it ideal for input/output filtering in portable power applications."

Searching: "Searching for high-frequency rated 4.7uH inductors intended for switching power circuits, ensuring low parasitic effects and efficient performance. Suitable for applications requiring stable performance over a wide frequency range, with an emphasis on thermal management and current handling."

Found 75 results.

Searching: "4.7uH Inductor"

Completed 8 component searches.

Using Calculator Tool.

Här är vad “en liten 5 V‑boost bara för LED1” innebär i praktiken, från 3.3 V batterisystemet.
Vad du lägger till
  • En liten step‑up (boost) från 3.3 V till en ny rail P_5V_LED som endast matar LED1.
  • Passiva kring boost:
    • Spole ca 4.7 uH (dimensioneras enligt vald ICs datablad), t.ex. FXL0420-4R7-M.
    • In/ut‑kondensatorer: 10 µF keramik (minst 6.3 V) på både VIN och VOUT + 100 nF nära IC‑pinnarna, t.ex. C2012X5R0J106M085AB och CL10B104KB8NNNC.
    • Serie‑Schottky på 5 V LED‑railen för skydd/isolering: B5819W.
  • Valfritt (strömspar): MCU‑styrd avstängning av 5 V LED‑railen med P‑MOSFET (high‑side load switch), t.ex. DMP3013SFV-7. Alternativt välj en boost‑IC med “output disconnect” (kontrollera i databladet).
Schemaändringar i ditt projekt
  • Skapa ny net: P_5V_LED.
  • Koppla LED1 VDD från P_3V3 till P_5V_LED. Låt LED1 GND kvar på GND.
  • Flytta/komplettera avkoppling:
    • 100 nF precis vid LED‑VDD/GND‑pinnarna (C_LED1 kan användas om den placeras mycket nära).
    • 10 µF på P_5V_LED nära LED (lägg till en ny 10 µF).
    • 10 µF + 100 nF på boost‑VIN (P_3V3) och 10 µF + 100 nF på boost‑VOUT (P_5V_LED).
  • Data: behåll seriemotståndet R_LED nära källan. 3.3 V data mot 5 V‑matad WS2812 fungerar normalt (kontrollera VIH i ditt LED‑datablad). Håll returvägen (GND) obruten under ledningen.
Layouttips som är viktiga här
  • Placera boost‑IC, spole och in/ut‑kondensatorer mycket tätt (minimera den switchande slingan). Håll SW‑noden kort.
  • Placera 0.1 µF direkt vid LED1‑pinnen och den större kondensatorn strax intill.
  • Ha ett sammanhängande GND‑plan under boost och LED, undvik slitsar i returvägen.
  • Sätt serie‑Schottkyn B5819W i början av P_5V_LED för skydd som praxis för WS2812‑matningar.
Strömbudget (full vit, 1 st LED)
  • 60 mA vid 5 V ≈ 0.3 W. Med antagen verkningsgrad 85 % drar boosten cirka 0.107 A från 3.3 V. Det är enhetens extra toppström när LED lyser vitt.
Vill du att jag sätter upp en plan som:
  • lägger in t.ex. TPS61222DCKR, passiva, ny net P_5V_LED,
  • flyttar LED1 till 5 V med avkopplingen,
  • och valfri strömgating? Säg “kör boosten”, så förbereder jag en kort plan och du kan klicka Start.
80 days

Ready.


C_LED2
Capacitance
1u F
GND
P_3V3
GND
P_VUSB
SW3_CTRL
GND
GND
GND
FPC1
GND
Hole4
U1
P_3V3
Hole3
P4_LEDS_DATA
FUNC_BTN
SW3_CTRL
Hole2
GND
P_VUSB
FUNC_BTN
P_3V3
GND
Hole1
P4_LEDS_DATA
SW1
R_PU
Resistance
10k Ω
C_BTN
R_LED
Resistance
100 Ω
C_LED1
Capacitance
0.1u F
R_BTN
Resistance
100 Ω
LED1


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • 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 10,000uF 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 20pF 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
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink

Inspect

P4_modeBTN_LED_onOffSwitch_module-2

P4_modeBTN_LED_onOffSwitch_module-2
Description

Created
Last updated by hoopla
1 Contributor(s)
hoopla

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