LP3972SQ-E514

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, low power consumption
• Package: QFN (Quad Flat No-Lead)
• Essence: Regulator IC for voltage regulation
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Maximum Output Current: 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LP3972SQ-E514 has a total of 16 pins. The pin configuration is as follows:

1. EN (Enable)
2. VIN (Input Voltage)
3. VOUT (Output Voltage)
4. GND (Ground)
5. FB (Feedback)
6. NC (No Connection)
7. NC (No Connection)
8. NC (No Connection)
9. NC (No Connection)
10. NC (No Connection)
11. NC (No Connection)
12. NC (No Connection)
13. NC (No Connection)
14. NC (No Connection)
15. NC (No Connection)
16. PG (Power Good)

Functional Features

• High efficiency voltage regulation
• Low dropout voltage
• Overcurrent protection
• Thermal shutdown protection
• Power good indication

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation - Wide input voltage range allows for versatile applications - Small package size saves board space - Power good indication ensures reliable operation

Disadvantages: - Limited maximum output current of 1A - Dropout voltage of 200mV may not be suitable for all applications

Working Principles

The LP3972SQ-E514 is a regulator IC that provides voltage regulation for various electronic devices. It operates by taking an input voltage within the range of 2.7V to 5.5V and converting it to a stable output voltage between 0.8V and 3.6V. The IC uses internal circuitry to regulate the output voltage, ensuring it remains constant even when the input voltage fluctuates.

Detailed Application Field Plans

The LP3972SQ-E514 is commonly used in the following applications:

1. Mobile devices: Provides power management for smartphones, tablets, and portable media players.
2. IoT devices: Regulates voltage for sensors, microcontrollers, and wireless communication modules.
3. Wearable devices: Ensures stable power supply for smartwatches, fitness trackers, and other wearable gadgets.
4. Consumer electronics: Used in digital cameras, portable gaming consoles, and audio/video equipment.

Detailed and Complete Alternative Models

1. LP3972SQ-E515: Similar to LP3972SQ-E514 but with a higher maximum output current of 1.5A.
2. LP3972SQ-E513: Similar to LP3972SQ-E514 but with a lower dropout voltage of 150mV.
3. LP3972SQ-E516: Similar to LP3972SQ-E514 but with additional overvoltage protection feature.

These alternative models offer variations in terms of output current, dropout voltage, and additional features, allowing users to choose the most suitable option for their specific requirements.

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