TC1303A-ZA0EUNTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-23-5
• Essence: Voltage regulator with low dropout voltage and high accuracy
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA
• Maximum Output Current: 250mA
• Quiescent Current: 45µA
• Line Regulation: ±0.05%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC1303A-ZA0EUNTR has a total of five pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin for turning the regulator on/off
4. VOUT: Output voltage pin
5. BYP: Bypass capacitor pin for improved stability

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output differentials.
• High accuracy output voltage regulation provides stable power supply for sensitive components.
• Low quiescent current minimizes power consumption in standby or idle mode.
• Thermal shutdown and current limit protection ensure safe operation under abnormal conditions.

Advantages and Disadvantages

Advantages: - Low dropout voltage allows for efficient power conversion. - High accuracy output voltage regulation ensures stable power supply. - Low quiescent current reduces power consumption. - Thermal shutdown and current limit protection enhance safety.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - SOT-23-5 package may require additional space on the PCB.

Working Principles

The TC1303A-ZA0EUNTR is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is slightly higher than the desired output voltage. It achieves this by utilizing a PNP pass transistor in conjunction with an error amplifier and feedback network. The error amplifier compares the output voltage to a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The TC1303A-ZA0EUNTR can be used in various applications, including but not limited to: 1. Battery-powered devices: Provides regulated power supply for portable electronics, such as smartphones, tablets, and wearable devices. 2. Industrial equipment: Suitable for powering sensors, actuators, and control circuits in industrial automation systems. 3. Automotive electronics: Can be used in automotive infotainment systems, lighting controls, and other vehicle electronics. 4. Medical devices: Provides stable power for medical instruments and diagnostic equipment. 5. IoT devices: Ideal for low-power IoT devices requiring efficient power management.

Detailed and Complete Alternative Models

1. LM1117-3.3: Low dropout voltage regulator with fixed 3.3V output voltage.
2. LT1763: Low dropout linear regulator with adjustable output voltage and high accuracy.
3. TPS79633: Ultra-low dropout voltage regulator with fixed 3.3V output voltage and high PSRR.
4. MCP1702: Low dropout voltage regulator with fixed output voltage options and low quiescent current.
5. MAX603: Precision low dropout voltage regulator with adjustable output voltage and low noise.

(Note: This list is not exhaustive and there are many other alternative models available in the market.)

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