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Specifications
SKU: 9274000
IC REG QUAD BUCK/LNR SYNC 20WQFN
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage (VIN) | Operating input voltage range | 3.0 | - | 5.5 | V |
| Output Voltage (VOUT) | Adjustable output voltage | 0.6 | - | 3.6 | V |
| Output Current (IOUT) | Maximum continuous output current | - | 4.0 | - | A |
| Switching Frequency (fSW) | Fixed switching frequency | 600 | - | - | kHz |
| Efficiency (η) | Typical efficiency at nominal conditions | - | 90 | - | % |
| Quiescent Current (IQ) | Quiescent current at no load | - | 25 | - | μA |
| Shutdown Current (ISD) | Shutdown current | - | 1 | - | μA |
| Thermal Shutdown (TSD) | Thermal shutdown temperature | - | - | 160 | °C |
| Package | Package type | - | - | - | TSSOP-16 |
| Operating Temperature (TA) | Ambient operating temperature range | -40 | - | 125 | °C |
| Storage Temperature (TSTG) | Storage temperature range | -65 | - | 150 | °C |
Instructions for Using TPS51275CRUKR
Input Voltage (VIN):
- Ensure the input voltage is within the specified range of 3.0V to 5.5V.
- Use appropriate decoupling capacitors to stabilize the input voltage.
Output Voltage (VOUT):
- Set the output voltage using the feedback resistor network. The formula for calculating the output voltage is: [ V_ = V_ left(1 + fracright) ] where ( V_ ) is the internal reference voltage (0.6V), ( R_1 ) is the resistor connected from the output to the FB pin, and ( R_2 ) is the resistor connected from the FB pin to ground.
Output Current (IOUT):
- The device can provide up to 4.0A of continuous output current. Ensure proper heat dissipation and use appropriate inductors and capacitors to handle the current.
Switching Frequency (fSW):
- The fixed switching frequency is 600kHz. This helps in reducing the size of external components.
Efficiency (η):
- The typical efficiency is around 90%. Optimize the design by selecting low ESR capacitors and low DCR inductors to achieve higher efficiency.
Quiescent Current (IQ):
- The quiescent current is typically 25μA at no load. This low current consumption is beneficial for battery-powered applications.
Shutdown Current (ISD):
- The shutdown current is typically 1μA. Use the EN pin to control the shutdown function.
Thermal Shutdown (TSD):
- The device will shut down if the junction temperature exceeds 160°C. Ensure adequate cooling and thermal management.
Package:
- The TPS51275CRUKR is available in a TSSOP-16 package. Follow the recommended PCB layout guidelines for optimal performance and reliability.
Operating Temperature (TA):
- The ambient operating temperature range is -40°C to 125°C. Ensure the device operates within this range to avoid damage.
Storage Temperature (TSTG):
- Store the device in a temperature range of -65°C to 150°C to prevent degradation.
For detailed application notes and further information, refer to the datasheet provided by Texas Instruments.
(For reference only)Inquiry - TPS51275CRUKR
