LM5010SD/NOPB
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Texas Instruments LM5010SD/NOPB

Manufacturer No:
LM5010SD/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 LM5010SD/NOPB is a high-voltage, 1-A step-down switching regulator produced by Texas Instruments. This regulator is designed to implement a low-cost, efficient buck bias regulator capable of supplying in excess of 1-A load current. It features a hysteretic regulation scheme that requires no loop compensation, resulting in fast load transient response and simplified circuit implementation. The LM5010 is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages, making it suitable for various high-voltage applications.

Key Specifications

ParameterValueUnit
Input Voltage Range8 to 75V
Output Current1A
Switching FrequencyUp to 1 MHz
Valley Current Limit1.25 A
Operating Junction Temperature-40 to 125°C
Package TypeWSON (10-pin), HTSSOP (14-pin)
Feedback Reference Voltage2.5 V
RDS(ON) of Buck Switch0.35 to 0.8 Ω
Thermal Shutdown TemperatureTypically 175°C

Key Features

  • Input Voltage Range: 8 V to 75 V
  • 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

  • High Efficiency Point-of-Load (POL) Regulator
  • Non-Isolated Telecommunications Buck Regulator
  • Secondary High Voltage Post Regulator
  • Automotive Systems, particularly 42-V automotive power bus

Q & A

  1. What is the input voltage range of the LM5010SD/NOPB?
    The input voltage range is from 8 V to 75 V.
  2. What is the maximum output current of the LM5010SD/NOPB?
    The maximum output current is 1 A.
  3. What is the switching frequency range of the LM5010SD/NOPB?
    The switching frequency can exceed 1 MHz.
  4. Does the LM5010SD/NOPB require loop compensation?
    No, it does not require loop compensation due to its hysteretic regulation scheme.
  5. What is the valley current limit of the LM5010SD/NOPB?
    The valley current limit is set at 1.25 A.
  6. What are the available package types for the LM5010SD/NOPB?
    The available package types are 10-pin WSON and 14-pin HTSSOP.
  7. What is the feedback reference voltage of the LM5010SD/NOPB?
    The feedback reference voltage is 2.5 V.
  8. How does the thermal shutdown feature work in the LM5010SD/NOPB?
    The thermal shutdown feature activates at a junction temperature of typically 175°C, disabling the buck switch and the ON timer, and grounding the soft-start pin to prevent overheating.
  9. Can the LM5010SD/NOPB be remotely shut down?
    Yes, it can be remotely shut down by taking the RON/SD pin below 0.65 V.
  10. What are some common applications of the LM5010SD/NOPB?
    Common applications include high efficiency point-of-load regulators, non-isolated telecommunications buck regulators, secondary high voltage post regulators, and automotive systems.

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 LM5010SD/NOPB LM5010SDX/NOPB LM5018SD/NOPB LM5017SD/NOPB LM5019SD/NOPB LM5010ASD/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, Isolation Capable Positive 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 8V 7.5V 7.5V 7.5V 6V
Voltage - Input (Max) 75V 75V 100V 100V 100V 75V
Voltage - Output (Min/Fixed) 2.5V 2.5V 1.225V 1.225V 1.225V 2.5V
Voltage - Output (Max) 70V 70V 90V 90V 90V 70V
Current - Output 1A 1A 300mA 600mA 100mA 1A
Frequency - Switching 100kHz ~ 1MHz 100kHz ~ 1MHz Adj to 1MHz Adj to 1MHz Adj to 1MHz 100kHz ~ 1MHz
Synchronous Rectifier No No Yes Yes Yes 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 ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 10-WDFN Exposed Pad 10-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad 10-WDFN Exposed Pad
Supplier Device Package 10-WSON (4x4) 10-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4) 10-WSON (4x4)

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