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.

Sign up to send
just give me a rough idea to accomplish this project
amlanc2005

amlanc2005

@copilot just give me a rough idea to accomplish this project
1y

copilot

To accomplish your buck-boost converter project with a 3.3V, 500mA output specification using the TPS63051YFFR, you'll follow a schematic structure that involves connecting input power, managing output, and including the necessary passive components for stabilization and feedback. Let's outline the high-level steps and connections required based on the components you've listed:
1. Input Power Supply Connection
  • VIN and GND: Connect your Li-ion battery to Vin and GND. Ensure your Li-ion battery supplies a voltage in the range of 2.5V to 5.5V to match the input requirements of the TPS63051YFFR. Use the J1 connector for easy connection to the battery, with J1:PIN_2 for VIN connected to IC1:VIN (Pin 2 of TPS63051YFFR) and J1:PIN_4 for GND connected to IC1:GND (Pin 4).
    • Connect Vin:(P1) to J1:PIN_2, IC1:VIN.
    • Connect GND to J1:PIN_4, IC1:GND.
2. Output Configuration
  • 3.3V Output: The output is configured by connecting IC1:VOUT (Pin 9) to your output capacitors C1 and C4, and then to the 3V3 power net and load (J1:PIN_3). The feedback net (IC1:FB, Pin 8) senses the output voltage to regulate it to 3.3V.
    • Connect IC1:VOUT to C1:P2, C4:P2, and 3V3:P1.
    • Connect J1:PIN_3 to 3V3:P1 for load connection.
3. Inductor Connections
The inductor L1 is critical for energy storage in both buck and boost modes of the converter:
  • Connect IC1:L1 to L1:P1 and IC1:L2 to L1:P2.
4. Feedback and Control
  • FB for Feedback: Set the feedback network to ensure proper output voltage regulation. Typically, this involves a voltage divider from the output to IC1:FB. However, specifics like resistances aren't detailed here.
  • Soft-Start: Connect C3:P1 to IC1:SS for soft-start configuration, controlling the startup time.
  • Enable Pin: Use J1:PIN_1 connected to IC1:EN to enable the converter, typically tied to a logic level high for automatic startup.
  • Current Limits and Mode Selection: The ILIM0 and ILIM1 pins (IC1:ILIM0, IC1:ILIM1) define the current limit and possibly the operational mode. Without specific requirements, they often are grounded or set to certain logic levels according to your current needs. The PFM/PWM pin (IC1:PFM/PWM) can also be used to select the switching mode based on your efficiency/noise requirements.
5. Filtering and Decoupling Capacitors
To ensure smooth operation and minimize input and output voltage ripple, decoupling and filtering capacitors are crucial:
  • Place C2 close to IC1:VIN and IC1:GND to filter the input side.
  • C1 and C4 at the output help stabilize the output voltage and reduce ripple. Ensure these are placed as close to IC1:VOUT and ground as possible.
  • C3 serves the soft-start function and should be connected close to IC1:SS.
6. Power Good and Under-Voltage Lockout (Optional)
  • You might also want to use IC1:PG for power-good indication, which could interface with MCU or LED indicators for system status feedback.
Connection Summary:
  • Input: Connect J1:PIN_2 to IC1:VIN and J1:PIN_4 to IC1:GND.
  • Output: Connect IC1:VOUT to C1:P2, C4:P2, and 3V3:P1. Connect J1:PIN_3 to your load (Assuming it's the output).
  • Inductor: Connect IC1:L1 to L1:P1 and IC1:L2 to L1:P2.
  • Feedback & Control: Connect control signals and configure feedback network appropriately.
  • Filtering: Place C2 for input filtering and C1, C4 for output stabilization.
This is a rough idea based on the typical use of the TPS63051YFFR and the components you've listed. You might need to adjust resistor values for the feedback network to set the output voltage precisely and ensure other connections satisfy the device's layout guidelines for optimal performance.
1y
C1
Capacitance
10u F
C4
Capacitance
10u F
3V3
L1
Inductance
1.5u H
C3
Capacitance
1n F
IC1
J1
C2
Capacitance
10u F
Vin
R1
Resistance
10k Ω
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    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
    jharwinbarrozo
    43.0M
  • Power Net 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
    jharwinbarrozo
    11.4M
  • Generic Resistor
    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
    jharwinbarrozo
    1.5M
  • 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 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
    jharwinbarrozo
    1.5M
  • Generic Inductor
    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
    jharwinbarrozo
    15.1k
  • 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
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M

Inspect

Buck Boost Converter 3.3V 500mA

Buck Boost Converter 3.3V 500mA
Description

Created
Last updated by amlanc2005
1 Contributor(s)
amlanc2005

Controls

Properties

Availability & Pricing

DistributorQty 1
Digi-Key$1.58
LCSC$3.66
Mouser$2.89

Assets