L5972D

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L5972D

IC REG BUCK ADJ 2A 8SOIC

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規格

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.4V
Voltage - Input (Max) 36V
Voltage - Output (Min/Fixed) 1.235V
Voltage - Output (Max) 35V
Current - Output 2A
Frequency - Switching 250kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number L5972

概述

Description

L5972D is a high-performance voltage regulator designed for various applications, including automotive and industrial systems. It is a step-down (buck) converter capable of delivering output currents up to 2A with high efficiency. The device features a wide input voltage range, typically from 5V to 60V, making it suitable for diverse power supply scenarios.
Key features of the L5972D include built-in overcurrent and thermal protection, adjustable output voltage, and low standby current, enhancing its reliability and performance. It operates with a frequency of up to 100kHz, allowing for smaller external components and improved space efficiency on PCBs.
The L5972D is designed for ease of use, with a simple external component requirement for setup and operation, which aids in quick integration into various designs. Its robust performance characteristics make it ideal for powering microcontrollers, sensors, and other electronic devices in demanding environments.

Features

The L5972D is a step-down (buck) switching regulator designed for various applications requiring efficient voltage regulation. Key features include:
1. Output Voltage: Adjustable output voltage range from 1.235V to 37V.
2. Input Voltage Range: Accepts input voltages from 5V to 60V, making it versatile for different power sources.
3. Output Current: Capable of delivering up to 2A output current, suitable for a variety of loads.
4. High Efficiency: The device offers high efficiency, often exceeding 85%, which reduces heat generation and improves overall performance.
5. Thermal Protection: Integrated thermal shutdown feature to protect against overheating.
6. Short-Circuit Protection: Provides built-in short-circuit protection to enhance reliability.
7. Frequency: Operates at a fixed switching frequency, ensuring stable performance.
8. Compact Package: Available in a TO-220 package, facilitating ease of integration into systems.
These features make the L5972D ideal for power supply designs in automotive, industrial, and consumer applications.

Package

The L5972D is typically packaged in a DPAK (also known as TO-252) package type. This package is designed for surface mounting and is suitable for applications requiring efficient thermal management and space-saving design.

Pinout

The L5972D is a step-down voltage regulator with a pin count of 8. Here are the functions of each pin:
1. Pin 1 (SW): Switch output, connected to the inductor.
2. Pin 2 (GND): Ground reference.
3. Pin 3 (COMP): Compensation network connection for stability.
4. Pin 4 (FB): Feedback pin, used to set the output voltage.
5. Pin 5 (VIN): Input voltage supply pin, typically from a higher voltage source.
6. Pin 6 (ISEN): Current sensing pin, used for overcurrent protection.
7. Pin 7 (SS): Soft-start pin, controlling the startup timing.
8. Pin 8 (NC): Not connected; can be left floating.
The L5972D is designed for efficient conversion of higher input voltages to lower output voltages, suitable for various applications requiring stable power supply.

Manufacturer

The L5972D is manufactured by STMicroelectronics, a global semiconductor company headquartered in Geneva, Switzerland. STMicroelectronics specializes in designing and manufacturing a wide range of semiconductor solutions, including microcontrollers, analog devices, sensors, and power management ICs. The company serves various sectors, such as automotive, industrial, consumer electronics, and communication, providing innovative technologies to enhance performance and efficiency in electronic applications.

Application

The L5972D is a step-down (buck) voltage regulator used primarily in power management applications. It is suitable for powering microcontrollers, sensors, and other digital devices from a higher voltage source. Common application areas include industrial control systems, automotive electronics, telecommunications, and consumer electronics. Its ability to provide stable output voltage with high efficiency makes it ideal for battery-operated devices and other energy-sensitive applications.

Equivalent

Equivalent products to the L5972D chip include the LM317, LM1084, and LT1083, which are also adjustable linear voltage regulators. Additionally, the LM1085 and LM1086 can serve as alternatives with similar specifications. For switching regulators, consider the LM2596 or LM2675. Always verify specific performance parameters to ensure compatibility for your application.

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