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LT1129CQ-5

Name: LT1129CQ-5
Rating: 4.7 (12 reviews)

LDO Voltage Regulators LT1129 - Micropower Low Dropout Regulators with Shutdown

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データシート LT1129CQ-5 DataSheet
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仕様

概要

Description

The LT1129CQ-5 is a high-accuracy voltage reference manufactured by Analog Devices. It is designed to provide a stable reference voltage of 5V with low noise and low drift over temperature, making it suitable for precision applications. The device features a typical temperature coefficient of 10 ppm/°C and a long-term stability of 0.5 mV, ensuring reliable performance over time.
The LT1129CQ-5 operates over a wide voltage range and is housed in a compact 8-lead SOIC package, allowing for easy integration into various circuit designs. Its low output impedance and ability to drive heavy loads make it ideal for use in data acquisition systems, precision instrumentation, and other applications where accuracy is critical.
Additionally, the LT1129CQ-5 includes features such as short-circuit protection and is designed to operate within a wide temperature range. Overall, it is a robust solution for engineers seeking a reliable voltage reference in demanding environments.

Features

The LT1129CQ-5 is a precision voltage reference from Analog Devices. Key features include:
1. Output Voltage: Provides a stable 5V output.
2. Temperature Coefficient: Low temperature coefficient of 10 ppm/°C, ensuring minimal drift over temperature variations.
3. Reference Error: High accuracy with a typical initial tolerance of ±0.5%.
4. Low Noise: Features low output noise, enhancing performance in sensitive applications.
5. Output Current: Capable of sourcing up to 10 mA, suitable for various loads.
6. Short-Circuit Protection: Built-in protection against output short circuits.
7. Wide Operating Temperature Range: Functional from -40°C to +85°C.
8. Package Options: Available in a compact 8-lead SOIC or DIP package.
The LT1129CQ-5 is ideal for applications requiring precise voltage references, such as data acquisition systems, instrumentation, and precision analog circuits.

Package

The LT1129CQ-5 is available in a 8-lead SOIC (Small Outline Integrated Circuit) package. This package type is compact, allowing for efficient use of board space in electronic designs.

Pinout

The LT1129CQ-5 is a low dropout (LDO) voltage regulator with a pin count of 8. Its primary function is to provide a stable 5V output from a higher input voltage, making it suitable for powering various electronic devices and circuits.
### Pin Configuration:
1. IN: Input Voltage
2. GND: Ground
3. OUT: Regulated Output Voltage (5V)
4. ADJ: Adjustment Pin (used for setting output voltage, if required)
5. NC: No Connect (not internally connected)
6. FB: Feedback Pin (used for voltage regulation)
7. COMP: Compensation Pin (used for stability)
8. SW: Switch Pin (for internal transistor)
### Key Features:
- Low dropout voltage
- High output current capability
- Thermal protection and short-circuit protection
This device is widely used in applications requiring tight voltage regulation where low dropout voltage is critical.

Manufacturer

The LT1129CQ-5 is manufactured by Analog Devices, Inc. Analog Devices is a global semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965, the company is known for its innovative solutions in various applications, including industrial automation, automotive, healthcare, communications, and consumer electronics. Analog Devices is recognized for its commitment to quality and performance, providing essential components that enable complex systems to function effectively. The LT1129 series, including the LT1129CQ-5, is a precision voltage reference designed for applications requiring stable and accurate voltage outputs.

Application

The LT1129CQ-5 is a precision voltage reference commonly used in applications such as data acquisition systems, analog-to-digital converters, instrumentation, and precision power supplies. It provides a stable 5V output, making it suitable for use in portable devices, medical equipment, and industrial control systems where accuracy and stability are critical.

Equivalent

Equivalent products to the LT1129CQ-5 voltage reference chip include the LM4041, TL431, and REF02. These alternatives provide similar voltage reference functionality, though specifications such as accuracy and temperature coefficient may vary. Always check the datasheets for detailed comparisons to ensure compatibility with your application.