LP3972SQE-I514

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: SQE (Small Quad Flat No-Lead)
• Essence: Voltage Regulator
• 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: 500mA
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 60μA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LP3972SQE-I514 has a total of 16 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. EN: Enable Pin
3. VOUT: Output Voltage
4. GND: Ground
5. FB: Feedback Pin
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. NC: No Connection

Functional Features

• High efficiency voltage regulation
• Low power consumption
• Overcurrent protection
• Thermal shutdown protection
• Short-circuit protection
• Soft start functionality

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption
• Wide input voltage range allows for versatile applications
• Compact package size saves board space
• Overcurrent and short-circuit protection ensure device safety
• Soft start functionality prevents voltage spikes during startup

Disadvantages

• Limited maximum output current of 500mA
• Dropout voltage of 200mV may affect performance in low voltage applications

Working Principles

The LP3972SQE-I514 is a voltage regulator IC that takes an input voltage within the range of 2.7V to 5.5V and provides a regulated output voltage between 0.8V and 3.6V. It achieves high efficiency by utilizing a switching regulator topology. The IC incorporates various protection features such as overcurrent, thermal shutdown, and short-circuit protection to ensure safe operation.

Detailed Application Field Plans

The LP3972SQE-I514 is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices. It is suitable for applications where efficient power management is crucial, and space on the PCB is limited. Some specific application areas include:

1. Mobile phones
2. Tablets
3. Portable media players
4. Smartwatches
5. Fitness trackers

Detailed and Complete Alternative Models

1. LP3972SQE-I515: Similar to LP3972SQE-I514 but with a higher maximum output current of 1A.
2. LP3972SQE-I513: Similar to LP3972SQE-I514 but with a lower dropout voltage of 100mV.
3. LP3972SQE-I512: Similar to LP3972SQE-I514 but with a wider input voltage range of 2.5V to 6.5V.

These alternative models provide options based on specific requirements and can be considered as alternatives to the LP3972SQE-I514.

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