LT1765EFE

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LT1765EFE

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IC REG BUCK ADJ 3A 16TSSOP

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Specifications

Attribute Value
Part Status Obsolete
Base Product Number LT1765
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 3V
Voltage - Input (Max) 25V
Voltage - Output (Min/Fixed) 1.2V
Voltage - Output (Max) 22.5V
Current - Output 3A
Frequency - Switching 1.25MHz
Synchronous Rectifier No
Mounting Type Surface Mount
Package 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 16-TSSOP-EP
Packaging Tube

Overview

Description

The LT1765EFE is a high-efficiency step-down switching regulator designed by Linear Technology, now part of Analog Devices. It is engineered to deliver a fixed or adjustable output voltage in electronic circuits, with the ability to handle input voltages ranging from 3.3V to 25V and produce output currents up to 1.5A. This makes it suitable for powering a variety of electronic devices from higher voltage inputs.
Key features of the LT1765EFE include its high efficiency, typically over 90%, which minimizes power loss and heat generation. It incorporates a constant frequency, current mode control, enabling fast transient response and ease of loop compensation. Other features include low dropout operation, short-circuit protection, and thermal shutdown, which enhance its reliability and robustness.
The device is packaged in a thermally enhanced 16-lead TSSOP package, making it a compact solution for space-constrained applications. It is commonly used in industrial, automotive, and consumer electronics where efficient power conversion is critical.

Equivalent

The LT1765EFE is a step-down switching regulator from Linear Technology (now part of Analog Devices). Equivalent products that can perform similar functions include:
1. Texas Instruments: LM2596 series
2. ON Semiconductor: MC34063
3. Microchip: MCP16301
4. STMicroelectronics: L4971
5. Rohm: BD9xx series
Ensure to check the specifications like input voltage range, output current, and switching frequency to match your application needs.

Features

The LT1765EFE is a high-efficiency, step-down switching regulator. Here are some key features:
1. Input Voltage Range: It operates over an input voltage range of 3V to 25V, making it versatile for various applications.
2. Output Current: It can deliver up to 1.25A of continuous output current.
3. Efficiency: The regulator is designed for high efficiency, typically up to 95%, which helps in reducing heat generation and energy loss.
4. Switching Frequency: It features a constant switching frequency of 1.25MHz, allowing for smaller inductors and capacitors and thus enabling a more compact design.
5. Low Quiescent Current: The device has a low quiescent current, which enhances battery life in portable applications.
6. Current Mode Operation: This ensures fast transient response and provides cycle-by-cycle current limiting.
7. Thermal Protection: The LT1765EFE includes thermal shutdown protection to prevent overheating.
8. Soft-Start Capability: It has a soft-start feature to limit inrush current during startup.
9. Package: It is available in a thermally enhanced 16-lead TSSOP package.
These features make the LT1765EFE suitable for use in a wide range of power management applications.

Pinout

The LT1765EFE is a step-down switching regulator with a 16-pin TSSOP (Thin Shrink Small Outline Package) configuration. Its primary function is to efficiently convert a higher input voltage to a lower output voltage, providing up to 1.5A of output current. The device is designed to operate with a wide input voltage range and features low quiescent current, making it suitable for battery-powered and energy-efficient applications.
Key features include:
- Wide input voltage range from 3.3V to 25V
- Fixed 1.2V, 1.5V, 1.8V, or adjustable output voltage options
- High efficiency due to internal power MOSFET
- Low shutdown current
- Thermal protection and current limit protection
The LT1765EFE is often used in applications such as distributed power systems, battery-powered devices, and point-of-load regulation.

Manufacturer

The LT1765EFE is a product manufactured by Linear Technology Corporation. Linear Technology specializes in designing and manufacturing high-performance analog integrated circuits. The company produces a wide range of products, including power management devices, data converters, signal conditioning circuits, RF and interface ICs, and module products. These products are used in various applications across multiple industries, including telecommunications, automotive, industrial, medical, and consumer electronics.
In 2017, Linear Technology was acquired by Analog Devices, Inc., another prominent company in the semiconductor industry. Analog Devices is known for its extensive portfolio of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The acquisition allowed Analog Devices to expand its offerings and strengthen its position in the analog technology market.

Application

The LT1765EFE is a step-down switching regulator designed for various applications requiring efficient power conversion. Its key application areas include:
1. Telecommunications: Used in power supplies for network equipment and base stations.
2. Industrial Systems: Powers control systems, sensors, and automation equipment.
3. Consumer Electronics: Suitable for battery-powered devices, portable gadgets, and home appliances.
4. Computing: Utilized in voltage regulation modules for servers and desktop computers.
5. Automotive: Supports infotainment systems, electronic control units, and other in-vehicle electronics by providing stable power output.
6. Medical Devices: Powers portable medical equipment requiring reliable and efficient power management.
The LT1765EFE's efficiency and small footprint make it suitable for applications demanding compact and efficient power solutions.

Package

The LT1765EFE is a step-down switching regulator from Linear Technology, now part of Analog Devices. It typically comes in a TSSOP-16 package with an exposed pad for enhanced thermal performance.

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