LT1764EQ-1.5

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LT1764EQ-1.5

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LDO Voltage Regulators LT1764 - 3A, Fast Transient Response, Low Noise, LDO Regulators

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Specifications

Attribute Value

Overview

Description

The LT1764EQ-1.5 is a low-dropout (LDO) linear regulator designed by Linear Technology, now part of Analog Devices. It provides a fixed output voltage of 1.5 volts from a supply voltage ranging from 2.7V to 20V, making it suitable for applications requiring a stable voltage supply with minimal input-to-output voltage differential. The device can deliver up to 3A of output current, making it suitable for powering high-current loads.
Key features of the LT1764EQ-1.5 include low dropout voltage, typically 340mV at 3A, excellent line and load regulation, and low noise performance, which is crucial for sensitive analog and RF applications. It also includes protections such as current limiting, thermal shutdown, and reverse battery protection, enhancing its reliability in demanding environments.
The regulator comes in a thermally enhanced package, necessary for dissipating heat in high-power applications. Its robust performance and protection features make the LT1764EQ-1.5 ideal for use in a wide range of applications, including telecommunications, automotive, and industrial systems.

Equivalent

The LT1764EQ-1.5 is a low dropout (LDO) linear regulator with a fixed 1.5V output. Equivalent products may include:
1. MIC39101-1.5WS from Microchip - 1.5V output LDO with similar characteristics.
2. TPS74901 from Texas Instruments - Adjustable LDO with a 1.5V configuration.
3. ADP3338A-1.5 from Analog Devices - Fixed 1.5V LDO regulator.
4. NCP1117ST15T3G from ON Semiconductor - 1.5V fixed output LDO.
Ensure to verify output current, dropout voltage, and package compatibility.

Features

The LT1764EQ-1.5 is a low dropout regulator (LDO) designed for high efficiency and performance. Key features include:
1. Fixed Output Voltage: It provides a fixed output voltage of 1.5V.
2. Low Dropout Voltage: The device offers a low dropout voltage of 340mV at full load, making it efficient for applications requiring minimal voltage loss.
3. High Output Current: It can supply up to 3A of output current, suitable for powering high-current devices.
4. Fast Transient Response: The regulator exhibits rapid response to changes in load conditions.
5. Low Quiescent Current: Operates with a low quiescent current, enhancing battery life in portable applications.
6. Internal Protection Features: Includes thermal shutdown and current limit protection to prevent device damage under fault conditions.
7. Stability: Stable with ceramic capacitors, allowing for compact PCB designs.
8. Wide Input Voltage Range: Operates over a wide input voltage range, enhancing flexibility in various applications.
9. SOT-223 Package: Comes in a compact and thermally efficient SOT-223 package.
These features make the LT1764EQ-1.5 suitable for use in applications requiring reliable voltage regulation with minimal power loss.

Pinout

The LT1764EQ-1.5 is a low-dropout (LDO) linear voltage regulator. It typically comes in a 5-pin TO-220 package. Here is a brief overview of its functions and pin configuration:
1. Pin 1 (VIN): Input voltage pin where the regulator receives the input power supply.
2. Pin 2 (GND): Ground pin which is connected to the system ground.
3. Pin 3 (VOUT): Output voltage pin that provides a regulated 1.5V output.
4. Pin 4 (SHDN): Shutdown pin; when pulled low, it disables the regulator, reducing the quiescent current to a very low level.
5. Pin 5 (NC): No connection; not internally connected but should typically be connected to ground for better thermal performance.
The LT1764EQ-1.5 is designed for applications requiring a fixed 1.5V output with a high maximum output current of up to 3A. It features low dropout voltage, fast transient response, and is used in applications like microprocessor power supplies, networking equipment, and other sensitive electronic circuits.

Manufacturer

The LT1764EQ-1.5 is manufactured by Analog Devices, Inc. This company is renowned for designing and manufacturing a wide range of semiconductor products, including analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves various industries, providing solutions for applications in areas such as communications, healthcare, automotive, industrial, and consumer electronics. The company is highly regarded for its emphasis on innovation and precision, delivering components that support complex electronic systems and devices.

Application

The LT1764EQ-1.5 is a low-dropout (LDO) linear voltage regulator, offering a fixed 1.5V output. Its primary application areas include powering low-voltage digital circuits, microprocessors, and FPGA cores. It is suitable for use in battery-powered devices due to its low dropout voltage and high efficiency. Additionally, it can be employed in telecommunications equipment, networking devices, and industrial systems where stable, low-noise power is essential. The LT1764EQ-1.5 is also used in consumer electronics, medical devices, and automotive applications where reliable power regulation is critical. Its thermal and current protection features make it ideal for environments requiring robust performance and safety.

Package

The LT1764EQ-1.5 is a low dropout (LDO) linear regulator in a TO-220 package. The "EQ" denotes the specific packaging, which is designed for mounting on printed circuit boards and includes three leads for input, output, and ground connections.

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