LM5010SDX/NOPB
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Texas Instruments LM5010SDX/NOPB

Manufacturer No:
LM5010SDX/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJUSTABLE 1A 10WSON
Delivery:
Payment:
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Product Introduction

Overview

The LM5010SDX/NOPB is a high-voltage, 1-A step-down switching regulator produced by Texas Instruments. This regulator is designed to provide a low-cost, efficient solution for buck bias power conversion. It features an integrated N-channel buck switch and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The LM5010 is well-suited for applications requiring the regulation of high input voltages down to a lower output voltage, with a hysteretic regulation scheme that eliminates the need for loop compensation, resulting in fast load transient response and simplified circuit implementation.

Key Specifications

Parameter Value
Input Voltage Range 8 V to 75 V
Output Current Up to 1 A
Switching Frequency Can exceed 1 MHz
Valley Current Limit 1.25 A
Package Type 10-pin WSON (DPR), 14-pin HTSSOP
Operating Temperature Range -40°C to 125°C
Thermal Shutdown Typically at 175°C
Feedback Reference Precision 2.5-V

Key Features

  • Integrated N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With Load and Line Variations
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Precision 2.5-V Feedback Reference
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat Dissipation
  • VCC Undervoltage Lockout, Gate Drive Undervoltage Lockout

Applications

The LM5010 is suitable for various high-voltage applications, including:

  • 48-V telecom power bus
  • 42-V automotive power bus
  • Industrial power supplies
  • High-voltage DC-DC conversion

Q & A

  1. What is the input voltage range of the LM5010?

    The input voltage range of the LM5010 is from 8 V to 75 V.

  2. What is the maximum output current of the LM5010?

    The LM5010 can supply up to 1 A of load current.

  3. What type of packages is the LM5010 available in?

    The LM5010 is available in 10-pin WSON (DPR) and 14-pin HTSSOP packages.

  4. Does the LM5010 require loop compensation?

    No, the LM5010 does not require loop compensation due to its hysteretic regulation scheme.

  5. What is the thermal shutdown temperature of the LM5010?

    The thermal shutdown typically occurs at 175°C.

  6. What are some key features of the LM5010?

    Key features include an integrated N-channel buck switch, integrated start-up regulator, ultra-fast transient response, and adjustable output voltage.

  7. What are the typical applications of the LM5010?

    The LM5010 is typically used in 48-V telecom and 42-V automotive power bus applications, as well as in industrial power supplies and high-voltage DC-DC conversion.

  8. How does the LM5010 handle load and line variations?

    The operating frequency of the LM5010 remains constant with load and line variations due to the inverse relationship between the input voltage and the ON-time.

  9. What is the valley current limit of the LM5010?

    The valley current limit of the LM5010 is set at 1.25 A.

  10. Does the LM5010 have any built-in protection features?

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):8V
Voltage - Input (Max):75V
Voltage - Output (Min/Fixed):2.5V
Voltage - Output (Max):70V
Current - Output:1A
Frequency - Switching:100kHz ~ 1MHz
Synchronous Rectifier:No
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:10-WDFN Exposed Pad
Supplier Device Package:10-WSON (4x4)
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Similar Products

Part Number LM5010SDX/NOPB LM5017SDX/NOPB LM5019SDX/NOPB LM5018SDX/NOPB LM5010ASDX/NOPB LM5010SD/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active
Function Step-Down Step-Down Step-Down Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive Positive, Isolation Capable Positive Positive
Topology Buck Buck Buck Buck Buck Buck
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1 1 1
Voltage - Input (Min) 8V 7.5V 7.5V 7.5V 6V 8V
Voltage - Input (Max) 75V 100V 100V 100V 75V 75V
Voltage - Output (Min/Fixed) 2.5V 1.225V 1.225V 1.225V 2.5V 2.5V
Voltage - Output (Max) 70V 90V 90V 90V 70V 70V
Current - Output 1A 600mA 100mA 300mA 1A 1A
Frequency - Switching 100kHz ~ 1MHz Adj to 1MHz Adj to 1MHz Adj to 1MHz 100kHz ~ 1MHz 100kHz ~ 1MHz
Synchronous Rectifier No Yes Yes Yes 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 ~ 150°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 10-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 10-WDFN Exposed Pad 10-WDFN Exposed Pad
Supplier Device Package 10-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 10-WSON (4x4) 10-WSON (4x4)

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