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LT1129IST-3.3#TRPBF

Name: LT1129IST-3.3#TRPBF
Rating: 4.7 (12 reviews)

IC REG LIN 3.3V 700MA SOT-223-3

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資料表 LT1129IST-3.3#TRPBF DataSheet
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規格

Part Status	Active
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	3.3V
Voltage Dropout (Max)	0.7V @ 700mA
Current - Output	700mA
Current - Quiescent (Iq)	70 µA
PSRR	64dB (120Hz)
Control Features	Enable
Protection Features	Over Temperature, Reverse Polarity
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	TO-261-4, TO-261AA
Supplier Device Package	SOT-223-3
Base Product Number	LT1129
Current - Supply (Max)	90 mA

概述

Description

The LT1129IST-3.3#TRPBF is a low-dropout (LDO) voltage regulator manufactured by Analog Devices. This device is designed to provide a stable output voltage of 3.3V with a maximum output current of 1A. It features a low dropout voltage, typically around 200mV at full load, which allows it to operate efficiently even when the input voltage is close to the output voltage.
Key features include low output noise, high power supply rejection ratio (PSRR), and built-in thermal shutdown and current limiting for protection. The device operates over a wide temperature range and is available in a compact surface-mount package (SOT-223), making it suitable for various applications, including portable devices, telecommunications, and automotive electronics.
The LT1129IST-3.3#TRPBF is characterized by its ease of use, requiring minimal external components, making it a popular choice for designers looking for reliable voltage regulation in their circuits.

Features

The LT1129IST-3.3#TRPBF is a low-dropout (LDO) voltage regulator from Analog Devices. Key features include:
1. Output Voltage: Fixed 3.3V output.
2. Low Dropout Voltage: Typically 0.2V at full load (providing efficiency with low input-output voltage differential).
3. Current Output: Capable of delivering up to 1A of output current.
4. Power Supply Rejection Ratio (PSRR): High PSRR ensures stable output voltage in the presence of input voltage variations.
5. Thermal Protection: Built-in thermal shutdown feature prevents damage from overheating.
6. Compact Package: Available in a surface-mount SO-8 package, suitable for space-constrained applications.
7. Applications: Ideal for use in portable devices, telecom, and industrial applications requiring stable voltage.
This LDO is designed for high performance while maintaining efficiency and reliability in various electronic applications.

Package

The LT1129IST-3.3#TRPBF is packaged in a 5-lead SOT-23 (surface mount) configuration.

Pinout

The LT1129IST-3.3#TRPBF is a precision voltage reference from Analog Devices with a pin count of 5.
Pin Functions:
1. VOUT (Pin 1): This pin provides the regulated output voltage of +3.3V.
2. GND (Pin 2): Connection to ground.
3. VREF (Pin 3): This pin serves as a reference voltage output, typically used for monitoring.
4. NC (Pin 4): No connection; this pin is not used.
5. SHDN (Pin 5): Shutdown pin that allows the device to be disabled to save power.
The LT1129 is known for its low noise and high precision, making it suitable for various applications requiring a stable voltage reference.

Manufacturer

The manufacturer of the LT1129IST-3.3#TRPBF is Analog Devices, Inc. Analog Devices is a multinational company that specializes in designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, it is known for its innovative technologies used in various applications, including communications, automotive, industrial automation, healthcare, and consumer electronics. The company is recognized for its high-performance components that enhance signal processing and sensor applications, making it a key player in the semiconductor industry.

Application

The LT1129IST-3.3#TRPBF is a precision voltage reference commonly used in applications such as data acquisition systems, instrumentation, analog-to-digital converters, and power supply regulation. Its stable output and low temperature coefficients make it ideal for precision measurement and control systems, as well as for use in high-performance analog circuits.

Equivalent

Equivalent products to the LT1129IST-3.3#TRPBF include the LM1117-3.3, MIC5205-3.3, and the AMS1117-3.3. These are low-dropout (LDO) voltage regulators that provide similar output voltage and specifications. Always check for specific application requirements, such as dropout voltage and load current capabilities, to ensure compatibility.