S-1172B18-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Overcurrent protection
• Package: SOT-89
• Essence: Voltage regulation for electronic devices
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.8V
• Output Current: 1A
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50μA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B18-U5T1U has three pins: 1. VIN: Input voltage pin 2. VOUT: Output voltage pin 3. GND: Ground pin

Functional Features

• Low dropout voltage ensures stable output even with low input voltage.
• High output voltage accuracy provides precise voltage regulation.
• Low quiescent current minimizes power consumption in standby mode.
• Overcurrent protection safeguards the IC and connected devices.

Advantages

• Reliable voltage regulation for electronic devices.
• Compact SOT-89 package allows for space-saving designs.
• Wide operating temperature range enables usage in various environments.
• Overcurrent protection enhances system safety.

Disadvantages

• Limited output current of 1A may not be suitable for high-power applications.
• Single fixed output voltage restricts flexibility in voltage selection.

Working Principles

The S-1172B18-U5T1U is a linear voltage regulator that maintains a constant output voltage despite variations in input voltage and load conditions. It utilizes a pass transistor to regulate the output voltage by adjusting its resistance based on feedback from a voltage reference circuit. The dropout voltage is minimized by using a low-resistance pass transistor, ensuring stable operation even with low input voltages.

Detailed Application Field Plans

The S-1172B18-U5T1U finds applications in various electronic devices requiring stable voltage regulation, such as: - Battery-powered devices - Portable audio players - Wireless communication modules - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. S-1172B18-M5T1U: Similar specifications but with an adjustable output voltage.
2. S-1172B18-U3T1U: Lower output voltage of 3.0V for specific applications.
3. S-1172B18-U6T1U: Higher output voltage of 6.0V for specific applications.

Note: This is not an exhaustive list, and there may be other alternative models available from the manufacturer.

This entry provides comprehensive information about the S-1172B18-U5T1U voltage regulator IC. Its specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models are covered.