LM8342SD/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output, Low Quiescent Current
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: LM8342SD/NOPB is a voltage regulator IC designed to provide a stable output voltage with low dropout voltage. It is commonly used in various electronic devices to regulate and control the voltage levels.
• Packaging/Quantity: The LM8342SD/NOPB is available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA load current
• Quiescent Current: 35µA typical
• Output Current: Up to 500mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM8342SD/NOPB has the following pin configuration:

```

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| | --| VOUT GND|-- Pin 1: Ground --| VIN NC |-- Pin 2: No Connection --| EN FB |-- Pin 3: Feedback Input --| NC NC |-- Pin 4: No Connection --| NC NC |-- Pin 5: No Connection --| NC NC |-- Pin 6: No Connection --| NC NC |-- Pin 7: No Connection --| VIN VIN|-- Pin 8: Input Voltage |___________| ```

Functional Features

• Low Dropout: The LM8342SD/NOPB has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output: The output voltage can be adjusted within a specified range using an external resistor divider network.
• Low Quiescent Current: The IC consumes very low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.
• Thermal Shutdown Protection: The LM8342SD/NOPB includes thermal shutdown protection, which prevents the IC from overheating and ensures safe operation.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation of output voltage. - Adjustable output voltage provides flexibility in various applications. - Low quiescent current minimizes power consumption. - Thermal shutdown protection ensures safe operation.

Disadvantages: - Limited output current capacity compared to higher-power regulators. - Requires external components (resistor divider) for adjusting the output voltage.

Working Principles

The LM8342SD/NOPB operates as a linear voltage regulator. It uses a pass transistor to control the output voltage based on the feedback received from the FB pin. The internal circuitry compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The low dropout voltage allows the IC to regulate the output voltage even when the input voltage is slightly lower than the desired output voltage.

Application Field Plans

The LM8342SD/NOPB is commonly used in various electronic devices and applications, including but not limited to:

1. Battery-powered devices: Portable electronics, handheld devices, and wearable devices benefit from the low quiescent current and adjustable output voltage capabilities of the LM8342SD/NOPB.
2. Automotive electronics: The IC can be used in automotive applications such as infotainment systems, lighting controls, and power management modules.
3. Industrial control systems: The LM8342SD/NOPB finds applications in industrial control systems, where stable and regulated voltage levels are essential for proper operation.

Alternative Models

• LM1117: A popular alternative with similar characteristics and package options.
• LT1763: Another alternative with lower dropout voltage and higher output current capability.
• TPS7A47: An alternative with higher input voltage range and adjustable output voltage.

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

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