LT3501EFE

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LT3501EFE

+BOM

IC REG BUCK ADJ 3A DL 20TSSOP

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  • 제조업체 부품 #LT3501EFE

  • 패키지 TSSOP-20

  • 재고3461

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사양

속성 가치
Package / Case Tube
Part Status Obsolete
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 2
Voltage - Input (Min) 3.1V
Voltage - Input (Max) 25V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 23.75V
Current - Output 3A
Frequency - Switching 250kHz ~ 1.5MHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

개요

Description

The LT3501EFE is a dual, step-down switching regulator designed by Analog Devices, formerly Linear Technology. It is engineered to convert a higher input voltage to a lower output voltage efficiently and is capable of delivering up to 3A of continuous output current per channel. The device operates with an input voltage range from 3.3V to 25V, making it versatile for various applications, including automotive, industrial, and telecom systems.
Key features of the LT3501EFE include a constant operating frequency of 500kHz, which helps in reducing the size of external components and ensures a compact design. It also includes an internal compensation, overcurrent protection, and soft-start functionality to prevent inrush current during startup. The device offers high efficiency and low power dissipation due to its synchronous rectification technology.
The LT3501EFE comes in a thermally enhanced 28-lead TSSOP package, ensuring efficient heat dissipation. It is designed for ease of use, with minimal external components required, making it ideal for engineers looking to design compact, efficient power supply systems.

Equivalent

The LT3501EFE is a dual-channel step-down switching regulator. Equivalent products include:
1. MAX15062 - A synchronous step-down converter by Maxim Integrated.
2. TPS54360 - A 60V, 3.5A, step-down converter by Texas Instruments.
3. LM3150 - A high-efficiency, synchronous buck converter by Texas Instruments.
4. MIC28511 - A high-performance, step-down regulator by Microchip Technology.
These alternatives offer similar functionalities and specifications for power management applications. Always verify pin compatibility and specifications before substituting.

Features

The LT3501EFE is a dual-channel, step-down switching regulator designed for efficient power management. Key features include:
1. Input Voltage Range: Operates from 3.6V to 25V, allowing flexibility in various applications.
2. Output Voltage: Adjustable down to 0.8V with a precision reference for accuracy.
3. Output Current: Supports up to 3A per channel, suitable for medium power applications.
4. Switching Frequency: Programmable from 250kHz to 2.5MHz, providing trade-offs between efficiency and component size.
5. Synchronization Capability: Can sync with an external clock for reduced interference.
6. Efficiency: High efficiency due to its synchronous rectification capability.
7. Protection Features: Includes overcurrent, overtemperature, and short-circuit protection to enhance reliability.
8. Soft-Start Function: Controls inrush current during startup, preventing input voltage dips.
9. Package: Offered in a thermally enhanced 28-lead TSSOP package, aiding in heat dissipation.
These features make the LT3501EFE suitable for applications in telecommunications, industrial systems, and consumer electronics requiring robust and efficient power conversion.

Pinout

The LT3501EFE is a dual monolithic step-down switching regulator. It is designed to provide two outputs with up to 3A of continuous output current each. The chip comes in a 20-lead TSSOP (Thin Shrink Small Outline Package) with an exposed pad for better thermal performance.
Here's a concise breakdown of its pin functions:
- VIN (Pins 1, 20): Input voltage pins for both channels.
- SW1, SW2 (Pins 2, 19): Switch nodes for each channel.
- BOOST1, BOOST2 (Pins 3, 18): Bootstrap capacitor connections for each channel.
- GND (Pins 4, 17, Exposed Pad): Ground connections.
- FB1, FB2 (Pins 5, 16): Feedback pins for setting the output voltage of each channel.
- VC1, VC2 (Pins 6, 15): Compensation pins for frequency compensation.
- RT (Pin 7): Sets the switching frequency with an external resistor.
- SYNC (Pin 8): Synchronization pin for frequency synchronization.
- SHDN1, SHDN2 (Pins 9, 14): Shutdown pins for each channel.
- PGOOD1, PGOOD2 (Pins 10, 13): Power good indicators for each channel.
- SGND (Pin 11): Signal ground.
- VCC (Pin 12): Internal supply voltage.
Its primary function is efficient DC-DC conversion with good thermal performance suitable for various applications.

Manufacturer

The LT3501EFE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These components are used in various applications, including industrial, automotive, communications, healthcare, and consumer electronics. The company is known for its innovation in analog technology and its ability to provide high-performance solutions for complex signal processing challenges.

Application

The LT3501EFE is a dual step-down switching regulator designed for applications requiring efficient power conversion. Its application areas include:
1. Power Supply Design: Used in designing efficient DC-DC converters for various electronic devices.
2. Consumer Electronics: Powers components in devices such as set-top boxes, gaming consoles, and home automation systems.
3. Automotive Systems: Used in automotive electronics for efficient power management.
4. Industrial Equipment: Powers industrial control systems and instrumentation.
5. Communications: Supports power supplies in networking and telecommunication devices.
6. Medical Devices: Used in low-noise power supplies for medical equipment.
7. Embedded Systems: Powers microcontrollers and other digital components in embedded applications.
Its versatility makes it suitable for any application requiring reliable and efficient power conversion.

Package

The LT3501EFE is a dual, current mode PWM step-down DC/DC converter. The package type for the LT3501EFE is a 28-lead TSSOP (Thin Shrink Small Outline Package) with exposed pad for enhanced thermal performance.