• LM2576S-12 DDPAK/TO-263-5
LM2576S-12 DDPAK/TO-263-5

LM2576S-12

Switching Voltage Regulators SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125

Quantity Unit Price(USD) Ext. Price
1 $0.418 $0.42
10 $0.340 $3.40
30 $0.306 $9.18
100 $0.265 $26.50
500 $0.220 $110.00
1000 $0.209 $209.00

Inventory:6,726

*The price is for reference only.
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  • Part Number : LM2576S-12

  • Package/Case : DDPAK/TO-263-5

  • Brands : TI

  • Components Categories : Voltage Regulators - DC DC Switching Regulators

  • Datesheet : LM2576S-12 DataSheet (PDF)

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Overview of LM2576S-12

The LM2576S-12 is a step-down voltage regulator IC designed to provide a fixed 12V output voltage from a higher input voltage source. This IC offers a simple and efficient solution for powering various electronic devices.

Pinout

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

  • VIN: Input voltage
  • GND: Ground
  • VOUT: Output voltage (12V)
  • Feedback: Feedback pin for regulating output voltage
  • ON/OFF: On/Off control pin
  • NC: No connection

Circuit Diagram

Incorporate a circuit diagram illustrating the connections and operation of the LM2576S-12 IC for a visual representation.

Key Features

  • Fixed Output Voltage: Provides a stable 12V output voltage, suitable for powering various electronic components.
  • Efficiency: Offers high efficiency over a wide range of load conditions, reducing power dissipation.
  • Wide Input Voltage Range: Accepts input voltages up to 40V, allowing flexibility in power supply design.
  • Internal Thermal Shutdown: Includes built-in thermal shutdown protection to prevent damage from excessive heat.
  • Short Circuit Protection: Features built-in short circuit protection for enhanced reliability.

Note: For detailed technical specifications, please refer to the LM2576S-12 datasheet.

Application

  • Power Supply: Ideal for generating a regulated 12V power supply for various electronic applications.
  • Embedded Systems: Suitable for powering microcontroller-based embedded systems and other digital electronics.
  • Automotive Electronics: Used in automotive applications such as powering sensors, actuators, and displays.

Functionality

The LM2576S-12 is a step-down voltage regulator IC that efficiently converts a higher input voltage to a fixed 12V output voltage. It provides stable and reliable power for a wide range of electronic devices and systems.

Usage Guide

  • Input Voltage: Connect VIN (Pin 1) to the input voltage source.
  • Output Voltage: VOUT (Pin 3) provides the regulated 12V output voltage.
  • Feedback: Use the Feedback (Pin 4) pin to adjust the output voltage if necessary.
  • On/Off Control: Control the operation of the regulator using the ON/OFF (Pin 5) pin.

Frequently Asked Questions

Q: What is the maximum input voltage supported by the LM2576S-12?
A: The LM2576S-12 can accept input voltages up to 40V.

Q: Does the LM2576S-12 require heatsinking?
A: The LM2576S-12 includes internal thermal shutdown protection, but heatsinking may be necessary depending on the application and load conditions to ensure optimal performance and reliability.

Equivalent

For similar functionalities, consider these alternatives to the LM2576S-12:

  • LM7805: This is a linear voltage regulator IC that provides a fixed 5V output voltage.
  • LM317: A versatile adjustable voltage regulator capable of providing various output voltages.

Specifications

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

Source Content uid LM2576S-12 Pbfree Code Yes
Rohs Code No Part Life Cycle Code Not Recommended
Ihs Manufacturer TEXAS INSTRUMENTS INC Part Package Code D2PAK
Package Description TO-263, Pin Count 4
Reach Compliance Code not_compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Date Of Intro 1995-01-01
Samacsys Manufacturer Texas Instruments Analog IC - Other Type SWITCHING REGULATOR
Control Mode VOLTAGE-MODE Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 40 V Input Voltage-Min 15 V
Input Voltage-Nom 25 V JESD-30 Code R-PSSO-G5
JESD-609 Code e0 Length 10.16 mm
Moisture Sensitivity Level 3 Number of Functions 1
Number of Outputs 1 Number of Terminals 5
Operating Temperature-Max 125 °C Operating Temperature-Min -40 °C
Output Current-Max 7.5 A Output Voltage-Max 37 V
Output Voltage-Min 3.3 V Output Voltage-Nom 12 V
Package Body Material PLASTIC/EPOXY Package Code TO-263
Package Shape RECTANGULAR Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 235 Qualification Status Not Qualified
Seated Height-Max 4.8 mm Surface Mount YES
Switcher Configuration BUCK Switching Frequency-Max 63 kHz
Temperature Grade AUTOMOTIVE Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING Terminal Pitch 1.7 mm
Terminal Position SINGLE Time@Peak Reflow Temperature-Max (s) 30
Width 8.635 mm

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