LM27964SQX-C/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection - Small package size

Package: 16-pin WQFN (3mm x 3mm)

Essence: The LM27964SQX-C/NOPB is a power management integrated circuit designed for efficient voltage regulation in various electronic devices.

Packaging/Quantity: The LM27964SQX-C/NOPB is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 45µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM27964SQX-C/NOPB has the following pin configuration:

1. EN (Enable)
2. FB (Feedback)
3. GND (Ground)
4. SW (Switch)
5. SW (Switch)
6. SW (Switch)
7. SW (Switch)
8. SW (Switch)
9. SW (Switch)
10. SW (Switch)
11. SW (Switch)
12. SW (Switch)
13. SW (Switch)
14. SW (Switch)
15. VIN (Input Voltage)
16. VOUT (Output Voltage)

Functional Features

• High Efficiency: The LM27964SQX-C/NOPB utilizes advanced circuitry to achieve high efficiency, minimizing power loss during voltage regulation.
• Adjustable Output Voltage: The output voltage can be adjusted within a specified range, providing flexibility for different application requirements.
• Overcurrent and Thermal Protection: The IC incorporates protection mechanisms to prevent damage from excessive current or temperature, ensuring safe operation.
• Wide Input Voltage Range: The LM27964SQX-C/NOPB can accept a wide range of input voltages, making it suitable for various power supply configurations.
• Low Dropout Voltage: The IC has a low dropout voltage, enabling efficient regulation even when the input voltage is close to the desired output voltage.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Wide input voltage range - Small package size

Disadvantages: - Limited maximum output current (1A)

Working Principles

The LM27964SQX-C/NOPB operates as a voltage regulator by continuously monitoring the input voltage and adjusting the internal circuitry to maintain a stable output voltage. It utilizes a feedback mechanism to compare the actual output voltage with a reference voltage and adjusts the switching elements accordingly. This ensures that the output voltage remains within the desired range, even with variations in the input voltage or load conditions.

Detailed Application Field Plans

The LM27964SQX-C/NOPB is commonly used in various electronic devices that require efficient voltage regulation, such as: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM27964SQX-C/NOPB include: - LM317T - LT1084CP - TPS7A4700

These alternatives may have slightly different specifications or package sizes but serve the same purpose of voltage regulation in electronic devices.

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