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Specifications
SKU: 11227557
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| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2.5 | - | 5.5 | V | Operating input voltage range |
| Output Voltage | VOUT | 1.8 | - | 5.2 | V | Adjustable output voltage range |
| Output Current | IOUT | - | 1 | 2 | A | Continuous output current capability |
| Efficiency | η | - | 90 | - | % | Typical efficiency at 3.3V input, 1A load |
| Quiescent Current | IQ | 30 | - | 70 | μA | Quiescent current at no load |
| Shutdown Current | ISD | 0.1 | - | 0.5 | μA | Shutdown current |
| Switching Frequency | fSW | 2.1 | - | 2.1 | MHz | Fixed switching frequency |
| Start-Up Time | tSU | 1 | - | 2 | ms | Time to reach regulation from power-on |
| Dropout Voltage | VDROPOUT | 0.3 | - | 0.5 | V | Dropout voltage at full load |
| Thermal Shutdown Temperature | TSD | - | 160 | - | °C | Thermal shutdown temperature |
| Operating Temperature Range | TOPR | -40 | - | 125 | °C | Ambient operating temperature range |
| Storage Temperature Range | TSTG | -65 | - | 150 | °C | Storage temperature range |
Instructions for TPS63031DSKR:
Power Supply Connection:
- Connect the input voltage (VIN) to the input pin.
- Ensure the input voltage is within the specified range (2.5V to 5.5V).
- Connect the ground (GND) to the common ground.
Output Configuration:
- Set the desired output voltage using external resistors connected to the FB (feedback) pin.
- Use the formula ( V_ = 1.23 times left(1 + fracright) ) to calculate the resistor values, where ( R_1 ) is connected between VOUT and FB, and ( R_2 ) is connected between FB and GND.
Capacitor Selection:
- Use a low ESR ceramic capacitor (typically 10μF) for the input capacitor (CIN) to ensure stable operation.
- Use a low ESR ceramic capacitor (typically 10μF) for the output capacitor (COUT) to maintain output stability.
Thermal Management:
- Ensure adequate heat dissipation by providing a thermal pad or heatsink if the device is expected to operate at high currents or in high ambient temperatures.
Shutdown Function:
- To enable the shutdown function, connect the EN (enable) pin to GND. To activate the device, connect EN to VIN or a logic high signal.
PCB Layout:
- Place the input and output capacitors as close as possible to the respective pins to minimize parasitic inductance.
- Use wide traces for power connections to reduce resistance and improve thermal performance.
Protection Features:
- The TPS63031DSKR includes overcurrent protection, thermal shutdown, and undervoltage lockout to protect against fault conditions.
Testing:
- After assembly, test the device under various load conditions to ensure it meets the required specifications.
- Verify the output voltage and current using a multimeter and load tester.
For detailed application notes and further information, refer to the datasheet provided by Texas Instruments.
(For reference only)Inquiry - TPS63031DSKR
