S-1172B1C-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown protection
• Package: SOT-23-5
• Essence: This IC is designed to regulate voltage in electronic circuits, ensuring a stable and reliable power supply.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical) at 100mA load current
• Quiescent Current: 35µA (typical)
• Output Current: 100mA (maximum)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B1C-U5T1U IC has the following pin configuration:

```

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| | --| Vout|-- Pin 1 --| Vin |-- Pin 2 --| GND |-- Pin 3 --| CE |-- Pin 4 --| NC |-- Pin 5 |____| ```

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
• Low quiescent current minimizes power consumption when the load is light or idle.
• Overcurrent protection safeguards the IC and connected components from excessive current flow.
• Thermal shutdown protection prevents overheating and potential damage to the IC.

Advantages

• Compact SOT-23-5 package allows for space-saving integration into various electronic devices.
• Wide input voltage range enables compatibility with different power sources.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Low quiescent current prolongs battery life in portable applications.
• Overcurrent and thermal shutdown protections enhance system reliability.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• The SOT-23-5 package may require additional heat dissipation measures for certain operating conditions.

Working Principles

The S-1172B1C-U5T1U is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a constant output voltage despite changes in the input voltage or load conditions.

Detailed Application Field Plans

The S-1172B1C-U5T1U is widely used in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive applications - Medical equipment

Detailed and Complete Alternative Models

• S-1172B1D-U5T1U
• S-1172B1E-U5T1U
• S-1172B1F-U5T1U
• S-1172B1G-U5T1U
• S-1172B1H-U5T1U

These alternative models offer similar functionality and specifications, providing flexibility in choosing the most suitable voltage regulator for specific applications.

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