TPS40322RHBT
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Texas Instruments TPS40322RHBT

Manufacturer No:
TPS40322RHBT
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG CTRLR BUCK 32QFN
Delivery:
Payment:
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Product Introduction

Overview

The TPS40322RHBT, produced by Texas Instruments, is a dual-output or two-phase synchronous buck controller. This device is designed to provide high efficiency and flexibility in power management systems. It can be configured as either a dual-output controller or a single-output, two-phase controller, making it versatile for various applications. The controller features 180° out-of-phase operation, which reduces input current ripple and extends the lifespan of input capacitors. It supports a wide input voltage range of 3 V to 20 V and output voltage range of 0.6 V to 5.6 V, making it suitable for multiple rail systems and various power requirements.

Key Specifications

Parameter Minimum Typical Maximum Unit
Input Voltage Range 3 - 20 V
Output Voltage Range 0.6 - 5.6 V
Switching Frequency 100 kHz 500 kHz 1 MHz Hz
Operating Junction Temperature -40 - 125 °C
UVLO Minimum Turn-on Voltage 1.21 1.24 1.27 V
Package Type - - 32-Pin VQFN -
Junction-to-Ambient Thermal Resistance - - 37.1 °C/W

Key Features

  • Dual-output or two-phase synchronous buck controller
  • 180° out-of-phase operation to reduce input current ripple and extend input capacitor lifespan
  • Bidirectional master and slave synchronization function for evenly distributed phase shift in four-output systems
  • Adjustable switching frequency from 100 kHz to 1 MHz
  • Voltage mode control with input feedforward to reduce noise sensitivity
  • Accurate current sharing for two-phase operation
  • Individual power good outputs and enable pins for each channel
  • Programmable soft-start with pre-bias start-up
  • Output UV/OV protection and input undervoltage lockout
  • Individual overcurrent limit setting and hiccup overcurrent protection
  • Remote sense for two-phase applications and internal N-channel FET drivers
  • Integrated bootstrap switches

Applications

  • Multiple rail systems
  • Telecom base stations
  • Switcher and router networking
  • xDSL broadband access
  • Server and storage systems

Q & A

  1. What is the input voltage range of the TPS40322RHBT?

    The input voltage range is from 3 V to 20 V.

  2. What is the output voltage range of the TPS40322RHBT?

    The output voltage range is from 0.6 V to 5.6 V.

  3. What is the switching frequency range of the TPS40322RHBT?

    The switching frequency can be adjusted from 100 kHz to 1 MHz.

  4. What is the purpose of the 180° out-of-phase operation in the TPS40322RHBT?

    The 180° out-of-phase operation reduces input current ripple and extends the lifespan of input capacitors.

  5. Does the TPS40322RHBT support bidirectional synchronization?

    Yes, it supports bidirectional master and slave synchronization.

  6. What type of control mode does the TPS40322RHBT use?

    The TPS40322RHBT uses voltage mode control with input feedforward.

  7. Can the soft-start time be programmed on the TPS40322RHBT?

    Yes, the soft-start time is programmable using a capacitor connected to the soft-start pin.

  8. What kind of protection features does the TPS40322RHBT have?

    The device includes output UV/OV protection, input undervoltage lockout, and individual overcurrent limit setting with hiccup overcurrent protection.

  9. What is the package type of the TPS40322RHBT?

    The device is available in a 32-Pin VQFN package.

  10. What are some common applications of the TPS40322RHBT?

    Common applications include multiple rail systems, telecom base stations, switcher and router networking, xDSL broadband access, and server and storage systems.

Product Attributes

Output Type:Transistor Driver
Function:Step-Down
Output Configuration:Positive
Topology:Buck
Number of Outputs:2
Output Phases:2
Voltage - Supply (Vcc/Vdd):3V ~ 20V
Frequency - Switching:100kHz ~ 1MHz
Duty Cycle (Max):- 
Synchronous Rectifier:Yes
Clock Sync:Yes
Serial Interfaces:- 
Control Features:Current Limit, Enable, Frequency Control, Phase Control, Soft Start
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:32-VFQFN Exposed Pad
Supplier Device Package:32-VQFN (5x5)
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Similar Products

Part Number TPS40322RHBT TPS40322RHBR
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Output Type Transistor Driver Transistor Driver
Function Step-Down Step-Down
Output Configuration Positive Positive
Topology Buck Buck
Number of Outputs 2 2
Output Phases 2 2
Voltage - Supply (Vcc/Vdd) 3V ~ 20V 3V ~ 20V
Frequency - Switching 100kHz ~ 1MHz 100kHz ~ 1MHz
Duty Cycle (Max) - -
Synchronous Rectifier Yes Yes
Clock Sync Yes Yes
Serial Interfaces - -
Control Features Current Limit, Enable, Frequency Control, Phase Control, Soft Start Current Limit, Enable, Frequency Control, Phase Control, Soft Start
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount
Package / Case 32-VFQFN Exposed Pad 32-VFQFN Exposed Pad
Supplier Device Package 32-VQFN (5x5) 32-VQFN (5x5)

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