TPS54310QPWPRQ1 Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	0.891V
Base Part Number:	TPS54310
Supplier Device Package:	20-HTSSOP
Package / Case:	20-PowerTSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	350kHz, 550kHz
Current - Output:	3A
Voltage - Output (Max):	3.3V
Series:	Automotive, AEC-Q100, SWIFT™
Voltage - Input (Max):	6V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction – TPS54310QPWPRQ1

TPS54310QPWPRQ1 is an advanced, high-efficiency synchronous buck regulator which is fully integrated to provide a complete DC-DC power solution. It is designed to provide a simple solution for a wide range of applications that require low voltage, low current supply. This integrated solution includes one N-Channel MOSFET for the high-side switch, one P-Channel MOSFET for the low-side switch, error amplifiers, voltage reference, soft-start, and all other necessary control and protection functions.

Application Field and Working Principle

The TPS54310QPWPRQ1 is designed to provide a cost effective solution for a wide range of applications that require low voltage and current regulation from 1.2V to 5.5V and up to 600mA. It is ideally suited for applications such as cell phone, portable computer, and digital cameras requiring high efficiency and low standby current.The TPS54310QPWPRQ1 features a high-side and low-side MOSFET, which is driven by the internal high-quality PWM control circuitry. The high-side MOSFET is responsible for delivering power and the low-side MOSFET is responsible for sinking the return path. This allows the TPS54310QPWPRQ1 to operate in a synchronous buck configuration. The internal error amplifier controls the output voltage by feedback from the output voltage. This feature helps to achieve high accuracy voltage regulation and low noise output.The TPS54310QPWPRQ1 also features internal soft-start which helps to minimize inrush current at turn-on and elimination of current spikes at high load transitions. It also offers a power good indicator output which indicates when the output voltage is within the regulation range. The TPS54310QPWPRQ1 draws ultra-low current during standby mode which helps to reduce output noise.

Conclusion

In conclusion, the TPS54310QPWPRQ1 is an ideal solution for low voltage and current regulation from 1.2V to 5.5V and up to 600 mA. It offers a wide range of features such as high-side and low-side MOSFETs, error amplifier, soft-start, power good indicator, and ultra low current during standby mode. The TPS54310QPWPRQ1 can be used in many different applications such as cell phones, portable computers, and digital cameras.

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