LM2751SDX-A

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection - Small package size

Package: SDX Package (8-pin, small outline package)

Essence: The LM2751SDX-A is a power management IC designed to regulate voltage efficiently and provide various protection features.

Packaging/Quantity: The LM2751SDX-A is available in a small outline package with a quantity of 100 units per reel.

Specifications

The LM2751SDX-A has the following specifications:

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM2751SDX-A has the following pin configuration:

1. EN (Enable): Enable pin for turning the IC on/off.
2. GND (Ground): Ground reference for the IC.
3. FB (Feedback): Feedback pin for setting the output voltage.
4. VOUT (Output Voltage): Regulated output voltage.
5. VIN (Input Voltage): Input voltage supply.
6. NC (No Connection): No connection pin.
7. NC (No Connection): No connection pin.
8. VOUT (Output Voltage): Regulated output voltage.

Functional Features

The LM2751SDX-A offers the following functional features:

• High efficiency voltage regulation for improved power management.
• Adjustable output voltage allows flexibility in system design.
• Thermal shutdown protection prevents overheating.
• Overcurrent protection safeguards against excessive current flow.

Advantages and Disadvantages

Advantages: - High efficiency voltage regulation improves power efficiency. - Adjustable output voltage allows customization for different applications. - Thermal shutdown and overcurrent protection enhance system reliability. - Small package size saves board space.

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications. - Dropout voltage of 200mV at 300mA may affect performance in low voltage scenarios.

Working Principles

The LM2751SDX-A operates as a voltage regulator by maintaining a stable output voltage regardless of input voltage fluctuations. It achieves this through internal circuitry that adjusts the voltage based on feedback received from the FB pin. The IC also incorporates thermal shutdown and overcurrent protection mechanisms to ensure safe operation.

Detailed Application Field Plans

The LM2751SDX-A is commonly used in various electronic devices and systems, including but not limited to:

1. Mobile phones
2. Portable media players
3. Wireless communication devices
4. Battery-powered devices
5. IoT (Internet of Things) devices

Detailed and Complete Alternative Models

Some alternative models to the LM2751SDX-A include:

1. LM2750SDX-B
2. LM2752SDX-C
3. LM2753SDX-D
4. LM2754SDX-E

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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