TPS2105DBVT

Product Overview

Category

The TPS2105DBVT belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used as a voltage regulator in various electronic devices and systems. It ensures a stable and regulated output voltage, which is crucial for the proper functioning of these devices.

Characteristics

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Output Current: Up to 500mA
• Low Dropout Voltage: 200mV at 100mA
• Low Quiescent Current: 45µA
• Thermal Shutdown Protection
• Short-Circuit Protection

Package

The TPS2105DBVT is available in a small SOT-23-5 package. This package offers compactness and ease of integration into various circuit designs.

Essence

The essence of the TPS2105DBVT lies in its ability to regulate voltage efficiently, ensuring stable power supply to electronic devices.

Packaging/Quantity

The TPS2105DBVT is typically packaged in reels or tape and reel packaging. Each reel contains 3000 units of the IC.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 45µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The TPS2105DBVT has five pins arranged as follows:

```

---

| | --| VIN GND |-- Pin 1: Input Voltage (VIN) --| VOUT EN |-- Pin 2: Ground (GND) --| FB NC |-- Pin 3: Output Voltage (VOUT) --| NC NC |-- Pin 4: Enable (EN) --| NC NC |-- Pin 5: Feedback (FB) |___________| ```

Functional Features

• Voltage Regulation: The TPS2105DBVT provides a stable and regulated output voltage, ensuring reliable operation of electronic devices.
• Low Dropout Voltage: With a low dropout voltage of 200mV at 100mA, this IC minimizes power loss and improves efficiency.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection, preventing damage due to excessive heat.
• Short-Circuit Protection: The TPS2105DBVT features built-in short-circuit protection, safeguarding the circuit from potential damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with various power sources.
• Low quiescent current ensures minimal power consumption during standby or idle modes.
• Compact SOT-23-5 package enables easy integration into space-constrained designs.
• Thermal shutdown and short-circuit protection enhance reliability and safety.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Restricted output voltage range may limit its use in certain specialized circuits.

Working Principles

The TPS2105DBVT operates as a linear voltage regulator. It regulates the output voltage by comparing it to a reference voltage and adjusting the internal pass transistor accordingly. This feedback loop ensures that the output voltage remains constant despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The TPS2105DBVT finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - IoT (Internet of Things) devices - Embedded systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS2105DBVT include: - LM1117-3.3: A popular 3.3V linear voltage regulator with a TO-220 package. - MCP1700-3302E: A low quiescent current LDO regulator with a SOT-23 package. - LT1763: A high-performance, low dropout linear regulator available in various output voltage options.

These alternative models can be considered based on specific requirements and design constraints.

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