LM5007SDX/NOPB
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Texas Instruments LM5007SDX/NOPB

Manufacturer No:
LM5007SDX/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJ 500MA 8WSON
Delivery:
Payment:
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Product Introduction

Overview

The LM5007SDX/NOPB from Texas Instruments is a high-voltage, step-down switching regulator designed for efficient and reliable DC/DC buck conversions. This device operates over an input voltage range of 9 V to 75 V and is capable of delivering up to 0.5 A of output current. The LM5007 features an integrated 80-V, 0.7-A N-channel buck switch and an internal high-voltage VCC regulator, making it suitable for a wide range of applications, including 48-V automotive and telecom systems. The regulator uses a hysteretic control scheme with constant on-time (COT) architecture, which ensures fast transient response without the need for control loop compensation. It is available in 8-pin VSSOP and thermally enhanced 8-pin WSON packages, facilitating simple and optimized PCB layout.

Key Specifications

Parameter Min Nom Max Unit
Input Voltage (VIN) 9 75 V
Junction Temperature (TJ) -40 125 °C
Output Current 0.5 A
Buck Switch Voltage Rating 80 V
Buck Switch Current Rating 0.7 A
Reference Voltage 2.5 V
Junction-to-Ambient Thermal Resistance (RθJA) 158.3 (VSSOP), 38.1 (WSON) °C/W

Key Features

  • Operating input voltage range of 9 V to 75 V
  • Integrated 80-V, 0.7-A N-channel buck switch
  • Internal high-voltage VCC regulator
  • Adjustable output voltage
  • Adaptive constant on-time control architecture for fast transient response without control loop compensation
  • Precision 2.5-V reference voltage
  • Low input quiescent current
  • Intelligent current limit protection with forced off-time
  • VCC and gate drive undervoltage lockout protection
  • Thermal shutdown protection with automatic recovery
  • External shutdown control
  • Available in 8-pin VSSOP and thermally enhanced 8-pin WSON packages

Applications

  • Non-isolated DC/DC buck regulators
  • Secondary high-voltage post regulators
  • 48-V automotive systems
  • 48-V telecom power bus designs
  • 42-V automotive systems

Q & A

  1. What is the input voltage range of the LM5007?

    The input voltage range of the LM5007 is from 9 V to 75 V.

  2. What is the maximum output current of the LM5007?

    The LM5007 can deliver up to 0.5 A of output current.

  3. What type of control scheme does the LM5007 use?

    The LM5007 uses a hysteretic control scheme with constant on-time (COT) architecture.

  4. Does the LM5007 require control loop compensation?

    No, the LM5007 does not require control loop compensation due to its hysteretic control scheme.

  5. What are the package options for the LM5007?

    The LM5007 is available in 8-pin VSSOP and thermally enhanced 8-pin WSON packages.

  6. What protection features does the LM5007 include?

    The LM5007 includes intelligent current limit protection, VCC and gate drive undervoltage lockout, thermal shutdown with automatic recovery, and maximum duty cycle limiter.

  7. How does the LM5007 handle overcurrent conditions?

    The LM5007 has an intelligent current limit off-timer that reduces load current foldback and provides cycle-by-cycle current limit protection.

  8. Can the LM5007 be shut down externally?
  9. What is the reference voltage of the LM5007?

    The reference voltage of the LM5007 is 2.5 V.

  10. How does the LM5007 manage thermal issues?

    The LM5007 includes thermal shutdown protection with automatic recovery to manage thermal issues.

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):9V
Voltage - Input (Max):75V
Voltage - Output (Min/Fixed):2.5V
Voltage - Output (Max):73V
Current - Output:500mA
Frequency - Switching:- 
Synchronous Rectifier:No
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:8-WDFN Exposed Pad
Supplier Device Package:8-WSON (4x4)
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Similar Products

Part Number LM5007SDX/NOPB LM5017SDX/NOPB LM5009SDX/NOPB LM5008SDX/NOPB LM5001SDX/NOPB LM5002SDX/NOPB LM5007SD/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Discontinued at Digi-Key Obsolete Active Active Active
Function Step-Down Step-Down Step-Down Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Down
Output Configuration Positive Positive Positive Positive Positive, Isolation Capable Positive, Isolation Capable Positive
Topology Buck Buck Buck Buck Boost, Flyback, Forward Converter, SEPIC Boost, Flyback, Forward Converter, SEPIC Buck
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1 1 1 1
Voltage - Input (Min) 9V 7.5V 9.5V 9.5V 3.1V 3.1V 9V
Voltage - Input (Max) 75V 100V 95V 95V 75V 75V 75V
Voltage - Output (Min/Fixed) 2.5V 1.225V 2.5V 2.5V 3.1V 3.1V 2.5V
Voltage - Output (Max) 73V 90V 85V 75V 76V (Switch) 76V (Switch) 73V
Current - Output 500mA 600mA 150mA 350mA 800mA (Switch) 400mA (Switch) 500mA
Frequency - Switching - Adj to 1MHz - 50kHz ~ 600kHz 50kHz ~ 1.5MHz 50kHz ~ 1.5MHz -
Synchronous Rectifier No Yes No No No No No
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad
Supplier Device Package 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4)

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