LP3971SQX-7848/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Adjustable output voltage - Overcurrent and thermal protection - Small form factor

Package: 48-pin LLP (Leadless Leadframe Package)

Essence: The LP3971SQX-7848/NOPB is a power management IC designed to provide efficient voltage regulation for various electronic devices.

Packaging/Quantity: The LP3971SQX-7848/NOPB is typically sold in reels containing 250 units per reel.

Specifications

The LP3971SQX-7848/NOPB has the following specifications:

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to 3.3V
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LP3971SQX-7848/NOPB features a 48-pin LLP package with the following pin configuration:

```

Pin Name Function

1 VIN Input Voltage 2 EN Enable Control 3 PG Power Good Indicator 4 VOUT Output Voltage 5 GND Ground 6 FB Feedback Voltage ... ... ... ```

For a complete pin configuration diagram, please refer to the datasheet of the LP3971SQX-7848/NOPB.

Functional Features

• High Efficiency: The LP3971SQX-7848/NOPB utilizes advanced circuitry to achieve high efficiency in voltage regulation, minimizing power losses.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range, providing flexibility for different applications.
• Overcurrent and Thermal Protection: The IC incorporates protection mechanisms to prevent damage from overcurrent conditions and excessive heat.
• Small Form Factor: The LP3971SQX-7848/NOPB is designed to occupy minimal space on a PCB, making it suitable for compact electronic devices.

Advantages and Disadvantages

Advantages: - High efficiency operation - Adjustable output voltage - Overcurrent and thermal protection - Small form factor

Disadvantages: - Limited maximum output current (500mA) - Restricted input voltage range (2.7V to 5.5V)

Working Principles

The LP3971SQX-7848/NOPB operates as a voltage regulator by taking an input voltage and regulating it to a desired output voltage level. It achieves this through a combination of internal circuitry and feedback control mechanisms. The IC continuously monitors the output voltage and adjusts its internal components to maintain a stable output despite variations in input voltage or load conditions.

Detailed Application Field Plans

The LP3971SQX-7848/NOPB finds application in various electronic devices that require efficient voltage regulation, such as: - Mobile phones - Tablets - Portable media players - Wearable devices - IoT (Internet of Things) devices

Alternative Models

Here are some alternative models that provide similar functionality to the LP3971SQX-7848/NOPB:

1. LM1117-3.3/NOPB
2. TPS79633DCQR
3. MCP1700T-3302E/TT

Please note that these models may have slightly different specifications and pin configurations. It is recommended to consult their respective datasheets for detailed information.

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