LTC3631IDD-3.3#TRPBF

Product Overview

Category

LTC3631IDD-3.3#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices and systems for voltage regulation purposes.

Characteristics

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage: 3.3V
• Output Current: Up to 600mA
• Efficiency: Up to 95%
• Switching Frequency: 1MHz
• Package Type: DFN-10
• Operating Temperature Range: -40°C to 125°C

Package and Quantity

The LTC3631IDD-3.3#TRPBF is available in a DFN-10 package. It is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 600mA
• Quiescent Current: 20µA
• Dropout Voltage: 200mV at 100mA
• Switching Frequency: 1MHz
• Efficiency: Up to 95%
• Soft-Start Time: 1ms
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to 125°C
• Package Type: DFN-10

Pin Configuration

The LTC3631IDD-3.3#TRPBF has the following pin configuration:

```

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

Pin Descriptions: - VIN: Input Voltage - GND: Ground - SW: Switch Node - FB: Feedback Pin - EN: Enable Pin - VOUT: Output Voltage

Functional Features

1. Wide Input Voltage Range: The LTC3631IDD-3.3#TRPBF can accept input voltages ranging from 2.25V to 5.5V, making it suitable for various applications.
2. High Efficiency: With an efficiency of up to 95%, this IC minimizes power losses and maximizes energy conversion.
3. Low Quiescent Current: The quiescent current of only 20µA ensures minimal power consumption during standby or idle modes.
4. Fast Soft-Start Time: The soft-start time of 1ms allows for a controlled and smooth startup of the voltage regulation process.
5. Shutdown Mode: The IC features a low shutdown current of less than 1µA, enabling power-saving functionality when not in use.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatility in different applications.
• High efficiency reduces power losses and improves overall system performance.
• Low quiescent current minimizes power consumption during standby.
• Fast soft-start time ensures a controlled startup process.
• Shutdown mode enables power-saving functionality.

Disadvantages

• Limited output current of up to 600mA may not be sufficient for high-power applications.
• DFN-10 package may require specialized handling during assembly.

Working Principles

The LTC3631IDD-3.3#TRPBF is a step-down (buck) DC-DC converter. It operates by converting a higher input voltage into a lower output voltage with high efficiency. The integrated circuit utilizes a switching regulator topology to achieve this voltage conversion. By rapidly switching the internal MOSFET switch, the input voltage is chopped and filtered to produce the desired output voltage.

Detailed Application Field Plans

The LTC3631IDD-3.3#TRPBF is commonly used in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Embedded systems - Industrial control systems - Automotive applications

Detailed and Complete Alternative Models

1. LTC3631IDD-5#TRPBF: Similar to LTC3631IDD-3.3#TRPBF, but with an output voltage of 5V.
2. LTC3631IDD-ADJ#TRPBF: Adjustable output voltage version, allowing for a user-defined output voltage within a specified range.
3. LTC3631HDD-3.3#TRPBF: Higher current variant with an output current of up to 1A.

These alternative models provide flexibility in terms of output voltage and current requirements, catering to a wider range of applications.

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