LT3681EDE#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Wide Input Voltage Range - Adjustable Output Voltage - Low Quiescent Current - Small Package Size

Package: DFN-12

Essence: The LT3681EDE#PBF is a high efficiency, wide input voltage range, adjustable output voltage power management IC. It is designed to provide efficient power conversion for various applications.

Packaging/Quantity: The LT3681EDE#PBF is available in a DFN-12 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 3V to 36V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 2A
• Switching Frequency: 1MHz
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3681EDE#PBF has the following pin configuration:

```

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| | --| VIN VOUT|-- --| GND SW |-- --| FB SS |-- |_______________| ```

• VIN: Input Voltage
• VOUT: Output Voltage
• GND: Ground
• SW: Switch Node
• FB: Feedback Pin
• SS: Soft-Start Pin

Functional Features

• High Efficiency: The LT3681EDE#PBF utilizes a synchronous step-down switching regulator architecture, which ensures high efficiency power conversion.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 3V to 36V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage, providing flexibility in power supply design.
• Low Quiescent Current: The IC has a low quiescent current of 50µA, minimizing power consumption during standby or idle modes.
• Small Package Size: The DFN-12 package offers a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range - Adjustable output voltage - Low quiescent current - Compact package size

Disadvantages: - Limited maximum output current (2A)

Working Principles

The LT3681EDE#PBF operates as a synchronous step-down switching regulator. It uses a high-frequency switching transistor to convert the input voltage to a lower output voltage. The feedback pin (FB) is used to regulate the output voltage by adjusting the duty cycle of the switching transistor. The soft-start pin (SS) allows for controlled startup and prevents excessive inrush current.

Detailed Application Field Plans

The LT3681EDE#PBF can be used in various applications, including but not limited to: - Industrial equipment - Automotive electronics - Telecommunications - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3681EDE#PBF include: - LT3680EDE#PBF - LT3682EDE#PBF - LT3683EDE#PBF - LT3684EDE#PBF

These alternative models have comparable specifications and can be considered as substitutes depending on specific application requirements.

In conclusion, the LT3681EDE#PBF is a versatile power management IC with high efficiency, wide input voltage range, and adjustable output voltage. It offers several advantages such as low quiescent current and a compact package size. However, it has a limited maximum output current. The IC can be used in various applications and has alternative models available for consideration.