LT3502EDC

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LT3502EDC

+Nomenclature

IC REG BUCK ADJ 500MA 8DFN

  • FabricantAnalog Equipment GmbH.

  • Pièce fabricant #LT3502EDC

  • Package DFN-8P

  • En stock2918

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Spécifications

Attribut Valeur
Package / Case Tube
Part Status Obsolete
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 3V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 36V
Current - Output 500mA
Frequency - Switching 1.1MHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

Présentation

Description

The LT3502EDC is a high-performance step-down switching regulator designed by Analog Devices (formerly Linear Technology). It is specifically tailored for use in compact and power-efficient applications. The regulator operates from an input voltage range of 3.6V to 15V, making it versatile for various power sources, including batteries and standard power supplies.
This device can deliver up to 500mA of continuous output current, which is suitable for powering microcontrollers, communication devices, and other electronics. The LT3502EDC features a high switching frequency, typically 2MHz, allowing the use of small external components and resulting in a compact overall solution size.
The regulator includes essential features such as internal compensation, soft-start, and thermal shutdown to enhance reliability and ease of use. Its high efficiency, typically over 85%, ensures minimal power loss and reduced heat generation. The LT3502EDC is available in a thermally enhanced, 8-lead DFN (Dual Flat No-Lead) package, which aids in effective heat dissipation. This makes it an excellent choice for applications where space and efficiency are critical considerations.

Equivalent

The LT3502EDC is a step-down switching regulator. Equivalent products might include:
1. Texas Instruments LM2831: A similar step-down regulator with comparable features.
2. Diodes Incorporated AP3402: Offers similar performance specifications.
3. ON Semiconductor NCP1529: Another step-down converter with similar characteristics.
When selecting an equivalent, ensure to check the specific electrical specifications and package to confirm compatibility with your application.

Features

The LT3502EDC is a high-performance step-down switching regulator designed for efficiency and flexibility. It operates from an input voltage range of 3.6V to 25V, making it suitable for a variety of applications. The device can deliver up to 500mA of output current and features a 2MHz fixed frequency operation, which allows the use of tiny, low-cost capacitors and inductors. The regulator provides a low dropout operation, ensuring efficient performance even at minimal voltage differentials between input and output.
Other notable features include current-mode control for fast transient response and loop stability, as well as an internal compensation network. The LT3502EDC also offers a soft-start feature to minimize inrush current during power-up, and a power-good indicator that signals when the output voltage is within regulation. Additionally, it includes over-temperature and over-current protection for enhanced reliability. The device comes in a compact and thermally efficient 2mm x 3mm DFN package, making it suitable for space-constrained applications.

Pinout

The LT3502EDC is a step-down switching regulator by Analog Devices, formerly Linear Technology. It is designed to convert a higher input voltage to a lower output voltage with high efficiency. The LT3502EDC comes in a compact 2mm x 3mm 8-lead DFN package. It has 8 pins in total, with each pin serving the following functions:
1. SW (Pin 1): Switch node connection; it is connected to the inductor.
2. GND (Pin 2): Ground connection for the device.
3. FB (Pin 3): Feedback pin to set the output voltage via an external resistor divider.
4. SHDN (Pin 4): Shutdown pin; pulling it low disables the regulator.
5. VIN (Pin 5): Input voltage pin; supplies power to the device.
6. RT (Pin 6): Set the switching frequency via an external resistor.
7. COMP (Pin 7): Compensation pin for loop stability.
8. BIAS (Pin 8): Optional bias pin for improved efficiency; can be tied to the output.
The LT3502EDC is suitable for applications requiring compact, high-efficiency power conversion solutions.

Manufacturer

The LT3502EDC is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. These components are used in a wide range of electronic equipment, making Analog Devices a key player in the electronics and technology industries. The company focuses on producing high-performance solutions for various sectors, including industrial, automotive, consumer electronics, communications, and healthcare.

Application

The LT3502EDC is a step-down switching regulator designed for efficient power conversion. Key application areas include:
1. Consumer Electronics: Used in devices like smartphones, tablets, and portable game consoles for efficient power management.
2. Industrial Systems: Supports various industrial equipment by providing stable power supply and enhancing energy efficiency.
3. Automotive Electronics: Powers infotainment systems, instrument clusters, and other automotive applications requiring reliable voltage regulation.
4. Telecommunications: Facilitates power management in networking equipment and telecommunications infrastructure.
5. Battery-Powered Devices: Ideal for applications that require compact, energy-efficient power conversion to extend battery life.
Overall, it is suited for any application needing a compact, efficient, and reliable step-down regulator.

Package

The LT3502EDC is a high-efficiency step-down regulator from Analog Devices, housed in a 6-lead DFN (Dual Flat No-leads) package. This compact package type is designed for space-constrained applications, offering efficient thermal performance and a low profile suitable for modern electronic devices.

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