LM1117IMP-3.3

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LM1117IMP-3.3

LDO Voltage Regulators

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Standard Pack Qty 1000
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Übersicht

Description

The LM1117IMP-3.3 is a low dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V from a higher input voltage source. It is part of the LM1117 series, which offers different fixed output voltages. The device features a maximum output current of 800mA, making it suitable for powering various electronic components and circuits.
Key specifications include a dropout voltage of around 1.2V at full load, meaning that for proper operation, the input voltage should be at least 4.5V. It also has built-in thermal overload and short-circuit protection, ensuring reliability and safety in applications. The LM1117IMP-3.3 is often used in microcontroller circuits, sensors, and other low-power devices, where a stable voltage supply is crucial.
This LDO is available in various package options, including TO-220 and SOT-223, facilitating easy integration into different designs. Overall, the LM1117IMP-3.3 is a versatile choice for compact power management solutions in consumer and industrial electronics.

Features

The LM1117IMP-3.3 is a low dropout (LDO) linear voltage regulator designed to provide a stable output voltage of 3.3V. Key features include:
1. Input Voltage Range: Operates with an input voltage range of 4.75V to 15V.
2. Output Current: Capable of delivering up to 800mA of output current.
3. Low Dropout Voltage: Typically around 1.2V at 800mA, allowing for efficient operation with minimal input-output voltage difference.
4. Thermal Protection: Integrated thermal shutdown protects the device from overheating.
5. Short Circuit Protection: Provides overcurrent protection to prevent damage during fault conditions.
6. Stability: Requires only 10µF output capacitor for stability, which simplifies design.
7. Temperature Range: Operates over a temperature range of -40°C to 125°C.
8. Package Type: Available in a surface-mount SOT-223 package, facilitating compact designs.
These features make the LM1117IMP-3.3 suitable for various applications, including microcontrollers, communication devices, and portable equipment.

Package

The LM1117IMP-3.3 is packaged in an SOT-223 (Surface Mount) configuration, which is a small, low-profile package suitable for space-constrained applications.

Pinout

The LM1117IMP-3.3 is a low-dropout voltage regulator (LDO) with a pin count of 5. The functions of its pins are as follows:
1. Input (Pin 1): Connects to the input voltage source, typically between 4.75V and 15V.
2. Output (Pin 2): Provides a regulated output voltage of 3.3V.
3. Ground (Pin 3): Common ground connection for the device and the circuit.
4. Adjust (Pin 4): Not used in the fixed 3.3V version; typically used for adjustable versions to set the output voltage.
5. Enable (Pin 5): Can be connected to a high logic level to enable the regulator; if not connected, it defaults to enabled.
The LM1117 is designed to deliver up to 800mA of output current with a low dropout voltage, making it suitable for various applications in power management.

Manufacturer

The LM1117IMP-3.3 is manufactured by Texas Instruments (TI), a major American technology company. Texas Instruments is renowned for designing and manufacturing semiconductors and various integrated circuits, including voltage regulators, microcontrollers, and digital signal processors. Founded in 1930, TI is a leader in the semiconductor industry, providing innovative solutions for various applications in electronics, automotive, industrial, and consumer markets. The company is known for its commitment to quality and sustainability, as well as its extensive portfolio of products aimed at enhancing performance and efficiency in electronic systems.

Application

The LM1117IMP-3.3 is a low dropout voltage regulator primarily used in applications requiring a stable 3.3V output. Common areas include powering microcontrollers, digital signal processors, and communication devices. It is also suitable for use in embedded systems, portable devices, and consumer electronics where efficient voltage regulation is needed for improved performance and battery life. Additionally, it can be employed in power management circuits and as a post-regulator in switching power supply designs.

Equivalent

Equivalent products to the LM1117IMP-3.3 include the AMS1117-3.3, MIC5205-3.3, MCP1700-3302E, and LD1117-3.3. These voltage regulators provide similar output voltage (3.3V) and specifications suitable for low-dropout applications. Always check the datasheet for specific pin configurations and electrical characteristics for compatibility.

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