LM3702XCBPX-308

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low dropout voltage regulator - High output current capability - Wide input voltage range - Adjustable output voltage - Thermal shutdown protection - Overcurrent and short-circuit protection

Package: X2SON-6 package

Essence: The LM3702XCBPX-308 is a power management integrated circuit designed for low dropout voltage regulation in various electronic devices.

Packaging/Quantity: The LM3702XCBPX-308 is available in X2SON-6 package and is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Dropout Voltage: 200mV at 500mA
• Maximum Output Current: 500mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM3702XCBPX-308 has the following pin configuration:

1. EN (Enable): Enable pin for turning the regulator on/off.
2. GND (Ground): Ground reference for the IC.
3. FB (Feedback): Feedback pin for adjusting the output voltage.
4. VIN (Input Voltage): Input voltage supply pin.
5. VOUT (Output Voltage): Output voltage pin.
6. BYP (Bypass): Bypass pin for noise reduction.

Functional Features

• Low dropout voltage: The LM3702XCBPX-308 provides a low dropout voltage, ensuring efficient power conversion even with small input-output voltage differentials.
• High output current capability: With a maximum output current of 500mA, the IC can handle a wide range of load requirements.
• Wide input voltage range: The IC can operate with an input voltage range of 2.5V to 5.5V, making it suitable for various applications.
• Adjustable output voltage: The output voltage can be adjusted from 0.8V to the input voltage (VIN) using an external resistor divider network.
• Thermal shutdown protection: The IC incorporates thermal shutdown protection to prevent damage due to excessive temperature.
• Overcurrent and short-circuit protection: The LM3702XCBPX-308 includes built-in overcurrent and short-circuit protection mechanisms to safeguard the circuitry.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability allows for versatile applications. - Wide input voltage range provides flexibility in power supply options. - Adjustable output voltage enables customization for specific requirements. - Thermal shutdown and overcurrent/short-circuit protection enhance reliability.

Disadvantages: - Limited maximum output current compared to some other power management ICs. - Requires external resistor divider network for output voltage adjustment.

Working Principles

The LM3702XCBPX-308 is a linear voltage regulator that operates by maintaining a constant voltage difference between the input and output terminals. It utilizes a pass transistor to regulate the output voltage based on the feedback received from the FB pin. By adjusting the resistance connected to the FB pin, the desired output voltage can be set. The IC also incorporates various protection features to ensure safe operation under different conditions.

Detailed Application Field Plans

The LM3702XCBPX-308 is widely used in various electronic devices and systems requiring low dropout voltage regulation. Some common application fields include: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

1. LM1117-3.3: Low dropout voltage regulator with fixed 3.3V output.
2. LM317: Adjustable positive voltage regulator with a wide input voltage range.
3. LT1763: Ultra-low dropout linear regulator with high output current capability.

These alternative models offer similar functionality and can be considered as alternatives to the LM3702XCBPX-308 based on specific application requirements.

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