TC1174VUA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current
• Package: SOT-23
• Essence: Regulates voltage with low power consumption
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Options: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
• Output Current: Up to 250mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 35µA typical
• Line Regulation: 0.02%/V
• Load Regulation: 0.05%/mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TC1174VUA is a 5-pin device with the following pin configuration:

1. GND (Ground)
2. VIN (Input Voltage)
3. VOUT (Output Voltage)
4. BYPASS (Bypass Capacitor)
5. SHDN (Shutdown Control)

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Built-in thermal shutdown protection prevents overheating.
• Short-circuit and overcurrent protection safeguards the device and connected components.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Small package size (SOT-23) enables space-saving designs.
• Low dropout voltage ensures efficient power conversion.
• Low quiescent current prolongs battery life in portable devices.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Sensitive to input voltage fluctuations, requiring stable power supply.

Working Principles

The TC1174VUA is a linear voltage regulator that maintains a stable output voltage regardless of variations in the input voltage. It achieves this by utilizing a pass transistor and feedback mechanism. The device 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 TC1174VUA finds applications in various fields, including:

1. Portable Electronics: Powering microcontrollers, sensors, and other low-power components in smartphones, tablets, and wearables.
2. Industrial Automation: Providing regulated voltage for control systems, sensors, and actuators in industrial machinery.
3. Automotive Electronics: Regulating voltage for automotive modules, infotainment systems, and lighting controls.
4. IoT Devices: Enabling efficient power management in smart home devices, environmental sensors, and wireless communication modules.

Alternative Models

1. LM1117-3.3: Similar voltage regulator with higher output current capability.
2. MCP1700-3302E: Low dropout voltage regulator with adjustable output voltage.
3. TS2940CX33: Low quiescent current voltage regulator with fixed 3.3V output.

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