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LM5165DRCR

Conv DC-DC 3V to 65V Synchronous Step Down Single-Out 1.23V to 65V 0.15A 10-Pin VSON EP T/R

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Overview of LM5165DRCR

The LM5165DRCR is a high efficiency, high voltage synchronous buck regulator that delivers up to 3A of continuous output current. It is designed to provide a regulated supply voltage for a wide range of applications, including industrial, automotive, and telecommunications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VIN: Input voltage
  • PVCC: Power supply input for the gate driver
  • SW: Switch node connection
  • GND: Ground connection
  • FB: Feedback pin
  • SS/TR: Soft start/tracking pin
  • VOUT: Output voltage
  • COMP: Compensation pin for loop stability
  • CLK/PLL: Clock input or synchronization pin

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM5165DRCR for a visual representation.

Key Features

  • High Efficiency: The LM5165DRCR offers high efficiency conversion, reducing power dissipation and improving overall system efficiency.
  • Wide Input Voltage Range: Supports input voltages from 4.5V to 65V, making it suitable for a variety of power supply designs.
  • Adjustable Output Voltage: The output voltage can be programmed using an external resistor divider, allowing flexibility in output voltage selection.
  • Integrated Synchronous Rectification: Features integrated synchronous rectification for improved efficiency and reduced component count.
  • Programmable Soft Start: The soft start feature allows for controlled startup and reduces inrush current during power up.

Note: For detailed technical specifications, please refer to the LM5165DRCR datasheet.

Application

  • Industrial Power Supplies: Ideal for generating regulated power supplies in industrial equipment.
  • Automotive Electronics: Suitable for automotive applications requiring efficient voltage regulation.
  • Telecommunications Equipment: Used in telecommunications devices for stable power delivery.

Functionality

The LM5165DRCR is a synchronous buck regulator that efficiently converts input voltage to a regulated output voltage, providing reliable power conversion for various applications.

Usage Guide

  • Input Voltage: Connect VIN (Pin X) to the input voltage source within the specified range.
  • Output Voltage: Adjust the output voltage by configuring the feedback network connected to FB (Pin X).
  • Soft Start: Utilize the SS/TR (Pin X) pin for soft start functionality to control the startup behavior.

Frequently Asked Questions

Q: Can the LM5165DRCR handle high input voltages?
A: Yes, the LM5165DRCR is designed to support input voltages up to 65V, making it suitable for high voltage applications.

Q: Is the LM5165DRCR suitable for automotive use?
A: Absolutely, the LM5165DRCR is well-suited for automotive electronics due to its high efficiency and wide input voltage range.

Equivalent

For similar functionalities, consider these alternatives to the LM5165DRCR:

  • LM3150: A high voltage synchronous buck regulator offering similar features and performance.
  • LM22677: This IC provides high efficiency voltage regulation with a wide input voltage range for diverse applications.
  • LTC7150: An alternative synchronous buck regulator with adjustable output voltage and high efficiency conversion.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Vin (min) (V) 3 Vin (max) (V) 65
Vout (min) (V) 1.23 Vout (max) (V) 65
Iout (max) (A) 0.15 Iq (typ) (mA) 0.01
Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600
Features Adjustable current limit, Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 150
Rating Automotive Regulated outputs (#) 1
Control mode Constant on-time (COT) Duty cycle (max) (%) 100
Type Converter

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