LP2996AMRX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output, Current Limiting
• Package: SOT-23-5
• Essence: The LP2996AMRX/NOPB is a voltage regulator IC designed to provide a stable and adjustable output voltage for various electronic devices.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.22V to 5.5V
• Dropout Voltage: 340mV at 3A
• Maximum Output Current: 3A
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LP2996AMRX/NOPB has the following pin configuration:

```

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| | --| EN GND |-- --| VIN VOUT |-- --| FB NC |-- |___________| ```

• EN: Enable Pin (Active High)
• GND: Ground Pin
• VIN: Input Voltage Pin
• VOUT: Output Voltage Pin
• FB: Feedback Pin
• NC: No Connection

Functional Features

• Low dropout voltage allows operation with small input-output differentials.
• Adjustable output voltage provides flexibility for various applications.
• Current limiting feature protects the circuit from excessive current.
• Thermal shutdown protection prevents damage due to overheating.
• Fast transient response ensures stability during load changes.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient power conversion. - Adjustable output voltage suits a wide range of applications. - Current limiting protects the circuit and connected devices. - Thermal shutdown protection enhances reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - SOT-23-5 package may require additional thermal management for certain scenarios.

Working Principles

The LP2996AMRX/NOPB is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The enable pin (EN) controls the operation of the regulator, allowing it to be turned on or off as required.

Detailed Application Field Plans

The LP2996AMRX/NOPB can be used in various applications, including but not limited to: 1. Battery-powered devices requiring stable voltage supply. 2. Portable audio players and smartphones. 3. Automotive electronics. 4. Industrial control systems. 5. Embedded systems and microcontrollers.

Detailed and Complete Alternative Models

Some alternative models to the LP2996AMRX/NOPB include: - LM1117: A popular low dropout voltage regulator with adjustable output. - LT1086: A high-current, adjustable linear regulator with low dropout voltage. - TPS7A47: An ultra-low noise, high PSRR voltage regulator with adjustable output.

These alternative models offer similar functionality and can be considered based on specific requirements and availability.

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