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LT1129CS8-3.3

Name: LT1129CS8-3.3
Rating: 4.7 (12 reviews)

IC REG LINEAR 700MA 8-SO

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規格

Part Status	Discontinued at Digi-Key
Number of Regulators	1
Current - Output	700mA
Operating Temperature	0°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SO
Base Product Number	LT1129

概述

Description

The LT1129CS8-3.3 is a low-dropout (LDO) linear voltage regulator designed by Analog Devices. It provides a fixed output voltage of 3.3V with a maximum output current of 1A. This regulator features a low dropout voltage of typically 0.3V at full load, making it suitable for battery-operated devices where maintaining efficiency is crucial.
It offers excellent line and load regulation, low noise, and fast transient response, which helps ensure stable operation in various applications. The LT1129CS8-3.3 is available in a compact surface-mount package, enhancing design flexibility and saving board space. Additionally, it incorporates protection features such as thermal shutdown and current limiting, ensuring safe operation under adverse conditions.
Overall, this voltage regulator is ideal for powering microcontrollers, sensors, and other electronic components that require a stable 3.3V supply.

Features

The LT1129CS8-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V. Key features include:
1. Low Dropout Voltage: Typically 300mV at full load, allowing efficient operation with minimal input-to-output voltage differential.
2. High Output Current: Capable of supplying up to 1A of output current, suitable for various applications.
3. Low Quiescent Current: Offers low power consumption, making it ideal for battery-operated devices.
4. Thermal Protection: Integrated thermal shutdown safeguards the device from overheating.
5. Short-Circuit Protection: Automatically limits output current during fault conditions.
6. Fast Transient Response: Ensures stable performance during rapid load changes.
7. SOT-223 Package: Compact size for space-constrained applications.
These features make the LT1129CS8-3.3 suitable for powering microcontrollers, sensors, and other electronic devices requiring a reliable 3.3V supply.

Package

The LT1129CS8-3.3 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package.

Pinout

The LT1129CS8-3.3 is a low-dropout voltage regulator (LDO) with a total of 8 pins. The pin configuration and functions are as follows:
1. Input (Vin): Supplies the input voltage to the regulator.
2. GND: Ground reference for the device.
3. Output (Vout): Provides the regulated output voltage (3.3V).
4. Feedback (FB): Used for feedback to set the output voltage; typically connected to the output.
5. Enable (EN): Activates or deactivates the regulator; logic high enables the output.
6. Compensation (Comp): Used to stabilize the feedback loop; may be connected to external components for frequency compensation.
7. Thermal Pad (Thermal): For heat dissipation; not a pin but important for thermal management.
8. NC (No Connect): Not connected internally; can be left floating or connected to ground.
This IC is designed for applications requiring a stable 3.3V output with low dropout voltage and good transient response.

Manufacturer

The LT1129CS8-3.3 is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing integrated circuits. Founded in 1965, the company serves a wide range of industries, including telecommunications, automotive, healthcare, and industrial applications. Their products are known for precision and reliability, making them essential in various electronic systems and devices. The LT1129CS8-3.3 itself is a low-dropout voltage regulator, designed to provide stable voltage levels for sensitive electronic components.

Application

The LT1129CS8-3.3 is a precision voltage reference used in various applications such as power supplies, data acquisition systems, instrumentation, and industrial control systems. It provides a stable 3.3V reference voltage, making it suitable for analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and circuit calibration. Its low output noise and temperature coefficient enhance performance in precision measurement and control systems.

Equivalent

Equivalent products to the LT1129CS8-3.3 voltage reference include the LM1117-3.3, LM317, and MCP1700-3302E/TO. Additionally, the MCP1725S-3302E/TO and MIC5205-3.3 are suitable alternatives. Always verify specifications like output voltage, current capacity, and thermal performance for your specific application.