LM5017SDE/NOPB
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Texas Instruments LM5017SDE/NOPB

Manufacturer No:
LM5017SDE/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REGULATOR SMD
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LM5017SDE/NOPB is a 100-V, 600-mA synchronous stepdown regulator produced by Texas Instruments. This device is designed to provide efficient and reliable step-down regulation from high input voltages. It features integrated 100-V high-side and low-side MOSFETs, eliminating the need for external Schottky diodes. The LM5017 employs a constant on-time (COT) control scheme, which requires no loop compensation and offers ultra-fast transient response and nearly constant operating frequency. This regulator is well-suited for various industrial and communications applications, including 24-V industrial systems and 48-V communications systems.

Key Specifications

Parameter Value Unit
Input Voltage Range 7.5 to 100 V
Output Current 600 mA
Output Voltage Adjustability From 1.225 V V
Feedback Reference Voltage 1.225 V ± 2% V
Switching Frequency Adjustability Up to 1 MHz Hz
Operating Junction Temperature Range -40 to 125 °C
Package Types WSON-8, SO PowerPAD-8
Thermal Shutdown Typically 145°C °C

Key Features

  • Wide 7.5-V to 100-V input range
  • Integrated 100-V high-side and low-side switches
  • No Schottky diode required
  • Constant on-time control with no loop compensation required
  • Ultra-fast transient response
  • Nearly constant operating frequency
  • Intelligent peak current limit
  • Adjustable output voltage from 1.225 V
  • Precision 2% feedback reference
  • Frequency adjustable up to 1 MHz
  • Adjustable undervoltage lockout (UVLO)
  • Remote shutdown and thermal shutdown

Applications

  • Industrial programmable logic controllers (PLC)
  • Smart power meters
  • Telecom primary and secondary side bias
  • Low-power isolated DC/DC (Fly-Buck™) applications
  • 24-V industrial systems and 48-V communications systems

Q & A

  1. What is the input voltage range of the LM5017?

    The input voltage range of the LM5017 is from 7.5 V to 100 V.

  2. What is the maximum output current of the LM5017?

    The maximum output current of the LM5017 is 600 mA.

  3. Does the LM5017 require an external Schottky diode?

    No, the LM5017 does not require an external Schottky diode as it has integrated high-side and low-side switches.

  4. What is the feedback reference voltage of the LM5017?

    The feedback reference voltage of the LM5017 is 1.225 V with a precision of ±2%.

  5. Can the switching frequency of the LM5017 be adjusted?

    Yes, the switching frequency of the LM5017 can be adjusted up to 1 MHz.

  6. What are the package options for the LM5017?

    The LM5017 is available in WSON-8 and SO PowerPAD-8 packages.

  7. What is the thermal shutdown temperature of the LM5017?

    The thermal shutdown temperature of the LM5017 is typically 145°C.

  8. Does the LM5017 have built-in protection features?

    Yes, the LM5017 includes protection features such as intelligent peak current limit, undervoltage lockout (UVLO), and thermal shutdown.

  9. What are some typical applications of the LM5017?

    The LM5017 is used in industrial programmable logic controllers (PLC), smart power meters, telecom primary and secondary side bias, and low-power isolated DC/DC (Fly-Buck™) applications.

  10. How does the constant on-time control scheme of the LM5017 work?

    The constant on-time control scheme of the LM5017 ensures that the on-time is inversely proportional to the input voltage, maintaining a relatively constant operating frequency and eliminating the need for loop compensation.

Product Attributes

Function:Step-Down, Step-Up/Step-Down
Output Configuration:Positive
Topology:Buck, Flyback
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):7.5V
Voltage - Input (Max):100V
Voltage - Output (Min/Fixed):1.225V
Voltage - Output (Max):100V
Current - Output:600mA
Frequency - Switching:Adj to 1MHz
Synchronous Rectifier:Yes
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 LM5017SDE/NOPB LM5017SDX/NOPB LM5017SD/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Function Step-Down, Step-Up/Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive
Topology Buck, Flyback Buck Buck
Output Type Adjustable Adjustable Adjustable
Number of Outputs 1 1 1
Voltage - Input (Min) 7.5V 7.5V 7.5V
Voltage - Input (Max) 100V 100V 100V
Voltage - Output (Min/Fixed) 1.225V 1.225V 1.225V
Voltage - Output (Max) 100V 90V 90V
Current - Output 600mA 600mA 600mA
Frequency - Switching Adj to 1MHz Adj to 1MHz Adj to 1MHz
Synchronous Rectifier Yes Yes Yes
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 8-WDFN Exposed Pad 8-WDFN Exposed Pad 8-WDFN Exposed Pad
Supplier Device Package 8-WSON (4x4) 8-WSON (4x4) 8-WSON (4x4)

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