TC1303B-SA0EMF

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-23-5
• Essence: Regulates input voltage to a lower, stable output voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA load current
• Maximum Output Current: 250mA
• Quiescent Current: 45µA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC1303B-SA0EMF has a total of five pins:

1. VIN - Input voltage pin
2. GND - Ground pin
3. EN - Enable pin (active high)
4. FB - Feedback pin for setting the output voltage
5. VOUT - Output voltage pin

Functional Features

• Low dropout voltage for efficient power conversion
• Stable output voltage over a wide range of input voltages
• Low quiescent current for power-saving applications
• Thermal shutdown protection to prevent overheating
• Short-circuit current limit for added safety

Advantages and Disadvantages

Advantages

• Small package size allows for space-saving designs
• Wide input voltage range provides flexibility in various applications
• Low dropout voltage minimizes power dissipation
• Excellent line and load regulation for stable output voltage

Disadvantages

• Maximum output current may not be sufficient for high-power applications
• Limited output voltage range may not meet all requirements

Working Principles

The TC1303B-SA0EMF is a low dropout voltage regulator that regulates the input voltage to a lower, stable output voltage. It achieves this by using a pass transistor and feedback mechanism to maintain the desired output voltage regardless of changes in the input voltage or load conditions.

When the input voltage exceeds the desired output voltage, the pass transistor reduces its resistance, allowing more current to flow through and lowering the output voltage. Conversely, when the input voltage drops below the desired output voltage, the pass transistor increases its resistance, reducing the current flow and raising the output voltage.

Detailed Application Field Plans

The TC1303B-SA0EMF is commonly used in various applications where a stable and regulated power supply is required. Some of the typical application fields include:

1. Battery-powered devices: Portable electronics, handheld instruments, etc.
2. IoT devices: Sensors, smart home devices, wearable technology, etc.
3. Automotive electronics: Infotainment systems, navigation systems, etc.
4. Industrial equipment: Control systems, measurement devices, etc.

Detailed and Complete Alternative Models

1. TC1303A-SA0EMF: Similar to TC1303B-SA0EMF but with a different output voltage range (1.8V to 5.5V).
2. TC1303C-SA0EMF: Similar to TC1303B-SA0EMF but with a higher maximum output current (500mA).

These alternative models provide options for different output voltage requirements and higher output current capabilities.

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