TPS73033DBVR

TPS73033DBVR

Overview

Category: Voltage Regulator
Use: Power Management
Characteristics: Low Dropout Regulator (LDO)
Package: SOT-23
Essence: High-performance, low-power voltage regulator
Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 3.3V
• Dropout Voltage: 160mV at 200mA
• Output Current: 200mA
• Quiescent Current: 1.6µA (typical)
• Line Regulation: 0.02%/V (typical)
• Load Regulation: 0.05%/mA (typical)
• Thermal Shutdown Protection
• Short-Circuit Current Limit
• Enable Pin for On/Off Control

Pin Configuration

The TPS73033DBVR is a 5-pin device with the following pin configuration:

1. EN (Enable): Controls the on/off state of the regulator.
2. GND (Ground): Connected to the ground reference.
3. FB (Feedback): Provides feedback for regulating the output voltage.
4. NC (No Connect): This pin is not internally connected and should be left unconnected.
5. VIN (Input Voltage): Accepts the input voltage to be regulated.

Functional Features

• Low dropout voltage allows efficient regulation even with small input-output differentials.
• Ultra-low quiescent current enables power-saving applications.
• Excellent line and load regulation ensures stable output voltage under varying conditions.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limit protects the regulator and the load from excessive current.

Advantages

• Small package size makes it suitable for space-constrained applications.
• Wide input voltage range allows compatibility with various power sources.
• Low dropout voltage minimizes power dissipation and extends battery life.
• Ultra-low quiescent current enables energy-efficient designs.
• Excellent line and load regulation ensure stable performance.

Disadvantages

• Limited output current of 200mA may not be sufficient for high-power applications.
• SOT-23 package may require additional thermal management in certain cases.

Working Principles

The TPS73033DBVR is a low dropout regulator that maintains a stable output voltage despite variations in the input voltage. It achieves this by using a pass transistor to regulate the voltage across a series resistor. The feedback mechanism compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The TPS73033DBVR is commonly used in various applications, including:

1. Battery-powered devices: Provides regulated power supply for portable electronics, such as smartphones, tablets, and wearables.
2. IoT (Internet of Things) devices: Enables efficient power management in connected devices, sensors, and wireless modules.
3. Industrial equipment: Suitable for powering control systems, sensors, and communication modules in industrial automation.
4. Automotive electronics: Used in automotive infotainment systems, dashboard displays, and other vehicle electronics.
5. Medical devices: Provides stable power supply for medical instruments, patient monitoring systems, and wearable health trackers.

Detailed and Complete Alternative Models

1. TPS73133DBVR: Similar to TPS73033DBVR but with an output voltage of 3.3V.
2. TPS73633DBVR: Offers a higher output current of 400mA while maintaining similar characteristics.
3. TPS70933DBVR: Provides a lower dropout voltage of 100mV at 200mA output current.

These alternative models offer different specifications and can be chosen based on specific application requirements.

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