LP3972SQ-I514

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, low power consumption
• Package: QFN (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
• Output Current: Up to 1.5A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LP3972SQ-I514 has the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage
6. PG: Power good indicator

Functional Features

• High efficiency voltage regulation
• Low power consumption in standby mode
• Overcurrent and thermal protection
• Power good indicator for system monitoring
• Enable pin for easy on/off control

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life - Low power consumption reduces energy waste - Overcurrent and thermal protection ensure system safety - Power good indicator allows for easy system monitoring - Enable pin provides convenient on/off control

Disadvantages: - Limited output current capacity (up to 1.5A) - Dropout voltage may affect performance in low input voltage scenarios

Working Principles

The LP3972SQ-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 within the range of 0.8V to 3.6V. It achieves high efficiency by utilizing a switching regulator topology. The IC continuously monitors the output voltage and adjusts its internal circuitry to maintain a stable output, even with varying input voltages and load conditions.

Detailed Application Field Plans

The LP3972SQ-I514 is commonly used in various portable electronic devices, such as smartphones, tablets, and wearable devices. It is particularly suitable for battery-powered applications where power efficiency is crucial. Some specific application fields include:

1. Mobile phones
2. Tablets and laptops
3. Portable gaming consoles
4. Fitness trackers and smartwatches
5. Portable medical devices

Detailed and Complete Alternative Models

1. LP3972SQ-I515: Similar to LP3972SQ-I514 but with higher output current capacity (up to 2A).
2. LP3972SQ-I516: Similar to LP3972SQ-I514 but with wider input voltage range (up to 6V).
3. LP3972SQ-I517: Similar to LP3972SQ-I514 but with additional features like adjustable output voltage.

These alternative models provide flexibility in choosing the most suitable voltage regulator based on specific requirements.

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