TPS84A20RVQT

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	TPS84A20
Supplier Device Package:	42-BQFN (10x10)
Package / Case:	42-BQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 1.2MHz
Current - Output:	10A
Voltage - Output (Max):	5.5V
Series:	Eco-Mode™
Voltage - Input (Max):	17V
Voltage - Input (Min):	2.95V
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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TPS84A20RVQT Application Field and Working PrincipleDC-DC switching regulators are one of the most widely used types of voltage regulators for electronic applications due to their reliability, versatility, and cost-effectiveness. The TPS84A20RVQT is a high-speed, high-efficiency switching regulator from Texas Instruments designed for a wide range of applications. This device enables the user to select either Buck or Boost topology with fixed 5V or adjustable output voltage options, allowing for a great degree of flexibility in engineering designs.The TPS84A20RVQT is a 2A and 3A fixed frequency synchronous mode DC-DC step down regulator. It is available in an 8-pin VSSOP package, simplifying the device layout due to its small footprint. Offered with fast transient response times, this regulator delivers high efficiency, low power dissipation, and high reliability.The TPS84A20RVQT has many beneficial features including its integrated low RDS(on) Power MOSFET to reduce burden in the external components. It also has input voltage protection as well as overvoltage protection, protecting the device from potential damage. With its maximum output current of 3A and its wide input voltage range, this regulator is well-suited for a wide range of applications, from wireless base stations to consumer electronics such as notebooks, tablets, and portable gaming platforms.The TPS84A20RVQT contains two power stages. The first stage is the voltage regulator module (VRM). This module takes a DC input voltage, typically 12V or higher, and regulates it to produce an output voltage, typically 5V. The second stage is the synchronous mode or step-down switching regulator. This module takes the regulated DC output of the VRM, typically 5V-12V, and provides a regulated output voltage, typically 1.5V-3.3V. The synchronous mode regulator achieves high efficiency through the use of a low-RDS(ON) power MOSFET and a dedicated voltage control circuit.The TPS84A20RVQT operates in fixed frequency mode, meaning the internal oscillator sets the switching frequency. The user has the option to select either a constant frequency or an external switching frequency depending on the user’s application needs. In addition to this, the device also provides soft start and current limit features, which help manage inrush current and protect the load during start-up.The TPS84A20RVQT also offers improved line/load transient performance with excellent noise reduction features. The device features loop compensation with integrated zero-crossing comparators and a high-resolution output voltage feedback, allowing for a fast and accurate response. This makes the device ideal for use in applications that require high accuracy and fast response times such as base station systems.In summary, the TPS84A20RVQT is a high-speed, high-efficiency switching regulator designed for a wide range of applications. Its versatile features and integrated features offer great flexibility in engineering designs and make this device a cost-effective solution for many applications. Its wide input voltage range, adjustable output voltage options, current limit and soft start features, as well as its excellent line/load transient performance make it perfectly suited for the complex requirements of wireless base stations and consumer electronics.

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