Chat
Welcome to Flux
Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More
Explain project
Write a project description
Find schematic issues
Create a test plan
Ready.
U1
"Can you help me find a time for a meeting?"
1y
I'm here to assist with electronic circuit design and related queries. However, I might not be the most helpful assistant for scheduling meetings or managing calendars. Is there anything related to your buck booster converter project or another electronics design query I can help with?
1y
Someone is typing...
4
give me a rough idea on how to accomplish this project
1y
To build a buck-boost converter that outputs 3.3V @ 500mA from a Li-ion battery using the TPS63051YFFR and following the form factor similar to a standard Adafruit buck converter, you'll need to follow these main steps. This will give you a rough guide to accomplish your project:
1. Understand the TPS63051YFFR Specifications:
- The TPS63051YFFR is a buck-boost converter from Texas Instruments, supporting input voltages from 2.5V to 5.5V. This matches your input voltage range requirements, making it suitable for Li-ion battery operations. For 3.3V output at 500mA, ensure you're familiar with its datasheet to understand pin configurations, efficiency, and application circuits.
- Inductor: Select an inductor that meets the recommended values in the TPS63051YFFR datasheet for your desired output specs. A typical value might be around 2.2 µH for high-efficiency power transfer.
- Input and Output Capacitors: Choose capacitors that match the requirements specified in the datasheet, both for stabilizing input supply and smoothing output. Typical values might include 10 µF for input and 22 µF for output.
- Feedback Resistors: To set the output voltage to 3.3V, use feedback resistors $R_1$ and $R_2$ as defined in the datasheet formulas. The resistance values are crucial to ensuring the correct output voltage.
- Battery Connection: Ensure a safe battery connection, possibly including a battery management system (BMS) for Li-ion batteries to prevent over-charge and discharge.
- TPS63051YFFR Pins:
- Connect VBAT to the positive terminal of the Li-ion battery.
- GND pin to the battery’s ground.
- SW pin connects to the inductor, and from there, one path goes to the output through one of the output capacitors, and another path returns to ground through another capacitor.
- FB (Feedback) pin connects through $R_1$ and $R_2$ (forming a voltage divider) back to the output to set the appropriate output voltage.
- EN (Enable) pin to a GPIO pin if you want to control the turn-on of the converter digitally or tie it to VBAT through a resistor for always-on operation.
- Follow Adafruit’s typical buck converter layout to ensure effective heat dissipation and minimize interference. Key points include placing the input and output capacitors close to the IC and ensuring the switch node (SW pin) path is short and wide to reduce losses and noise.
- Once assembled, carefully test the output under load conditions to ensure it meets the 3.3V @ 500mA specification. Adjust feedback resistors if needed to fine-tune the output voltage.
- Always refer to the TPS63051YFFR datasheet for detailed specifications and example circuits.
- Safety first: Li-ion batteries require careful handling. Ensure all power electronics designs are tested in controlled conditions.
This guide is a starting point based on assumptions about standard practice and requirements. Each project is unique, so adaptations may be necessary based on your specific needs and constraints.
1y
Someone is typing...
2
C2
Capacitance
100p F
R1
Resistance
100k Ω
C4
Capacitance
10u F
VIN
C1
Capacitance
10uF
L1
Inductance
1.5u H
C3
Capacitance
10u F
J1
3V3
3V3
J2
VIN
Reviews
Electrical Rule Checks
Missing Footprints
Reports parts that have no footprint.
Design Rule Checks
Overlapping Copper • 2
Des | Net | Des | Net | ... | |
|---|---|---|---|---|---|
Invalid Layer
Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.
Component Overrides
Reports components that have been modified using the "!important" flag.
Airwires • 13
Deprecated Rules
Reports nodes that are using rules that are not supported anymore.
Layers with Multiple Fills
Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.
Floating Copper
Detect any via, trace or copper fill island that is not connected to any net.
Protected Intrusions
Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.
System Checks
Auto-Layout
BetaReports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.
Passive Components
Resistor Power Rating
BetaChecks that the power traveling across a given resistor is under its rating with 50% headroom.
Learn morePull Up/Pull Down Presence
BetaChecks that IC pins that require pull up or pull down resistors have them.
Learn moreCapacitor Voltage Rating
BetaChecks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- 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 #powerjharwinbarrozo11.4M
- 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 #genericsjharwinbarrozo15.1k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Inspect
Utkarsh's trial
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Digi-Key | $1.50–$1.61 | |
| LCSC | $1.35 | |
| Mouser | $2.62 | |
Assets
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
utkarsh24
Image