S-1172B25-U5T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Small package size
• Package: SOT-23-5
• Essence: Linear voltage regulator
• 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 (typical) at 100mA load current
• Output Current: 100mA
• Quiescent Current: 30µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B25-U5T1G has a total of five pins arranged in the following configuration:

```

---

| | --| Vout|-- Pin 1: Output Voltage --| GND |-- Pin 2: Ground --| Vin |-- Pin 3: Input Voltage --| NC |-- Pin 4: No Connection --| EN |-- Pin 5: Enable Control |____| ```

Functional Features

• Low dropout voltage ensures stable operation even with low input voltages.
• High output voltage accuracy provides precise voltage regulation.
• Low quiescent current minimizes power consumption during standby or idle mode.
• Small package size allows for space-efficient designs.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Excellent line and load regulation ensures stable output voltage under different conditions.
• Low dropout voltage reduces power dissipation and extends battery life.
• Enable control pin allows for easy on/off control of the regulator.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• SOT-23-5 package may require additional thermal considerations for dissipating heat.

Working Principles

The S-1172B25-U5T1G is a linear voltage regulator that uses 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. The dropout voltage is minimized by using a low-resistance pass transistor.

Detailed Application Field Plans

The S-1172B25-U5T1G is commonly used in various electronic devices and systems, including: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive applications - Medical equipment

Detailed and Complete Alternative Models

• S-1172B33-U5T1G: Same features and specifications, but with an output voltage range of 1.8V to 3.3V.
• S-1172B50-U5T1G: Same features and specifications, but with an output voltage range of 2.5V to 5.0V.
• S-1172B12-U5T1G: Same features and specifications, but with an output voltage range of 0.8V to 1.2V.

These alternative models provide flexibility in choosing the desired output voltage range for specific applications.

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