TPS2828DBVT

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Thermal shutdown protection - Overcurrent protection

Package: SOT-23-5

Essence: The TPS2828DBVT is a voltage regulator IC designed to provide stable and regulated output voltage for various electronic devices.

Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

The TPS2828DBVT has the following specifications:

• Input Voltage Range: 2.7V to 6V
• Output Voltage Range: 1.2V to 5.5V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV at 500mA
• Quiescent Current: 45µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS2828DBVT has a SOT-23-5 package with the following pin configuration:

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Pin 1: Enable (EN) Pin 2: Ground (GND) Pin 3: Feedback (FB) Pin 4: Output (OUT) Pin 5: Input (IN)

Functional Features

The TPS2828DBVT offers the following functional features:

1. High Efficiency: The voltage regulator provides high efficiency, minimizing power loss and maximizing battery life in portable devices.

2. Low Dropout Voltage: With a low dropout voltage of only 200mV at 500mA, the IC ensures stable output voltage even when the input voltage is close to the desired output voltage.

3. Wide Input Voltage Range: The TPS2828DBVT can operate with an input voltage range of 2.7V to 6V, making it suitable for a wide range of applications.

4. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature by shutting down the regulator when the temperature exceeds a certain threshold.

5. Overcurrent Protection: The TPS2828DBVT includes overcurrent protection, safeguarding the circuit from excessive current flow and preventing damage to the device.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Thermal shutdown and overcurrent protection

Disadvantages: - Limited output current capacity (up to 500mA)

Working Principles

The TPS2828DBVT operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. When the output voltage drops below the desired level, the regulator adjusts the pass transistor to increase the output voltage. Conversely, if the output voltage exceeds the desired level, the regulator reduces the output voltage by adjusting the pass transistor.

Detailed Application Field Plans

The TPS2828DBVT is commonly used in various electronic devices that require stable and regulated power supply, such as:

1. Mobile phones and smartphones
2. Portable media players
3. Digital cameras
4. Wireless communication devices
5. Battery-powered IoT devices

Alternative Models

Here are some alternative models that offer similar functionality to the TPS2828DBVT:

1. LM1117-ADJ: Adjustable Linear Voltage Regulator
2. LT1763-3.3: Low Dropout Linear Regulator
3. MCP1700-3302E/TO: Low Quiescent Current LDO Regulator
4. TS2940-ADJ: Adjustable Voltage Regulator with Thermal Shutdown

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

In conclusion, the TPS2828DBVT is a voltage regulator IC that provides stable and regulated output voltage for various electronic devices. With its high efficiency, wide input voltage range, and built-in protection features, it is a reliable choice for applications requiring precise power supply regulation.