TPS543820RPYR
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Texas Instruments TPS543820RPYR

Manufacturer No:
TPS543820RPYR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
4-V TO 18-V, 8-A SYNCHRONOUS SWI
Delivery:
Payment:
iso14001
iso45001
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Product Introduction

Overview

The TPS543820RPYR from Texas Instruments is a high-efficiency, 8-A synchronous buck converter designed for a wide range of applications. This device employs an internally-compensated, fixed-frequency Advanced Current Mode (ACM) control, allowing for high efficiency and stable operation. It operates within an input voltage range of 4 V to 18 V and can produce output voltages from 0.5 V to 7 V. The converter is housed in a compact 2.5-mm × 3-mm, 14-pin VQFN-HR package, making it ideal for designs requiring a small solution size and high efficiency at high frequencies.

Key Specifications

Parameter Minimum Typical Maximum Unit
Input Voltage (VIN) 4 - 18 V
Output Voltage (VOUT) 0.5 - 7 V
Output Current (IOUT) - - 8 A
Operating Junction Temperature (TJ) -40 - 150 °C
Switching Frequency 500 kHz - 2.2 MHz -
Package Type VQFN-HR (14-pin) - - -
Package Size 2.5 mm × 3 mm - - -
Junction-to-Ambient Thermal Resistance (RθJA) - - 58.9 °C/W

Key Features

  • Fixed-frequency, internally-compensated Advanced Current Mode (ACM) control.
  • Integrated 25-mΩ and 6.5-mΩ N-channel MOSFETs for high efficiency.
  • High accuracy voltage reference.
  • Selectable soft start times and monotonic start-up into pre-biased outputs.
  • Selectable current limits and adjustable undervoltage lockout (UVLO) through the EN pin.
  • Full suite of fault protections, including thermal shutdown and overcurrent protection.
  • External clock synchronization capability using the SYNC pin.
  • Compact 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch.

Applications

  • Wireless infrastructure and wired communications equipment.
  • Optical and fiber networks.
  • Test and measurement equipment.
  • Medical and healthcare devices.

Q & A

  1. What is the input voltage range of the TPS543820RPYR?

    The input voltage range is from 4 V to 18 V.

  2. What is the maximum output current of the TPS543820RPYR?

    The maximum output current is 8 A.

  3. What is the operating junction temperature range of the TPS543820RPYR?

    The operating junction temperature range is from -40°C to 150°C.

  4. Can the switching frequency of the TPS543820RPYR be synchronized to an external clock?
  5. What type of package does the TPS543820RPYR come in?

    The device is housed in a 2.5-mm × 3-mm, 14-pin VQFN-HR package.

  6. What are some of the key features of the TPS543820RPYR?

    Key features include integrated MOSFETs, high accuracy voltage reference, selectable soft start times, and a full suite of fault protections.

  7. What are some typical applications for the TPS543820RPYR?

    Typical applications include wireless infrastructure, optical and fiber networks, test and measurement equipment, and medical devices.

  8. How does the Advanced Current Mode (ACM) control in the TPS543820RPYR enhance its performance?

    The ACM control provides stable static and transient operation without complex external compensation, enabling the use of low-ESR output capacitors and a high signal-to-noise ratio.

  9. What is the thermal shutdown threshold of the TPS543820RPYR?

    The thermal shutdown threshold is between 165°C and 175°C.

  10. Does the TPS543820RPYR support monotonic start-up into pre-biased outputs?

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):4V
Voltage - Input (Max):18V
Voltage - Output (Min/Fixed):0.5V
Voltage - Output (Max):5.5V
Current - Output:8A
Frequency - Switching:500kHz, 750kHz, 1MHz, 1.5MHz, 2.2MHz
Synchronous Rectifier:Yes
Operating Temperature:-40°C ~ 150°C (TJ)
Mounting Type:Surface Mount
Package / Case:14-VFQFN
Supplier Device Package:14-VQFN-HR (2.5x3)
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Similar Products

Part Number TPS543820RPYR TPS543320RPYR TPS543620RPYR
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Function Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive
Topology Buck Buck Buck
Output Type Adjustable Adjustable Adjustable
Number of Outputs 1 1 1
Voltage - Input (Min) 4V 4V 4V
Voltage - Input (Max) 18V 18V 18V
Voltage - Output (Min/Fixed) 0.5V 0.5V 0.5V
Voltage - Output (Max) 5.5V 5.5V 5.5V
Current - Output 8A 3A 6A
Frequency - Switching 500kHz, 750kHz, 1MHz, 1.5MHz, 2.2MHz 500kHz, 750kHz, 1MHz, 1.5MHz, 2.2MHz 500kHz, 750kHz, 1MHz, 1.5MHz, 2.2MHz
Synchronous Rectifier Yes Yes Yes
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 14-VFQFN 14-VFQFN 14-VFQFN
Supplier Device Package 14-VQFN-HR (2.5x3) 14-VQFN-HR (2.5x3) 14-VQFN-HR (2.5x3)

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