LTC3631EDD-3.3#PBF

Product Overview

Category

The LTC3631EDD-3.3#PBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic devices to regulate and stabilize voltage levels.

Characteristics

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage: 3.3V
• Maximum Output Current: 500mA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C
• Package Type: DFN-10
• RoHS Compliant

Packaging/Quantity

The LTC3631EDD-3.3#PBF is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 500mA
• Quiescent Current: 20µA
• Dropout Voltage: 200mV at 500mA
• Switching Frequency: 1MHz
• Shutdown Current: <1µA
• Soft-Start Time: 1ms
• Overtemperature Protection: Yes
• Short-Circuit Protection: Yes
• Enable Pin: Yes

Detailed Pin Configuration

The LTC3631EDD-3.3#PBF has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. SW (Switch Node)
4. FB (Feedback Voltage)
5. EN (Enable)
6. SS (Soft-Start)
7. VOUT (Output Voltage)
8. PGND (Power Ground)
9. NC (No Connection)
10. VREF (Reference Voltage)

Functional Features

• Wide input voltage range allows for flexibility in various applications.
• High efficiency ensures minimal power loss during voltage regulation.
• Overtemperature and short-circuit protection enhance the safety and reliability of the device.
• Enable pin allows for easy control of the regulator's operation.
• Soft-start feature prevents excessive inrush current during startup.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with different power sources.
• High efficiency reduces energy consumption and heat generation.
• Compact package size (DFN-10) facilitates space-constrained designs.
• Overtemperature and short-circuit protection enhance system reliability.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Dropout voltage of 200mV at 500mA may result in a slight voltage drop across the regulator.

Working Principles

The LTC3631EDD-3.3#PBF utilizes a switching regulator topology to regulate the input voltage to a stable 3.3V output. It employs a high-frequency switching transistor to efficiently convert the input voltage to the desired output level. The feedback voltage is compared to a reference voltage, and the duty cycle of the switching transistor is adjusted accordingly to maintain the output voltage within the specified range.

Detailed Application Field Plans

The LTC3631EDD-3.3#PBF can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - IoT devices - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

• LT1763CS8-3.3#PBF
• LM1117IMPX-3.3/NOPB
• TPS79633DCQR
• ADP3339AKCZ-3.3-R7
• MAX6035AAUR50-T

These alternative models offer similar voltage regulation capabilities and can be considered as substitutes for the LTC3631EDD-3.3#PBF in different applications.

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