S-1172B46-U5T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Thermal shutdown protection
• 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
• 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-1172B46-U5T1G has a total of five pins arranged as follows:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: NC (No Connection) Pin 4: VOUT (Output Voltage) Pin 5: CE (Enable Control)

Functional Features

• Low dropout voltage ensures stable operation even with small input-output voltage differentials.
• High output voltage accuracy provides precise regulation for sensitive electronic components.
• Low quiescent current minimizes power consumption in standby or idle mode.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages

• Wide input voltage range allows flexibility in various applications.
• Small package size (SOT-23-5) enables space-saving designs.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Low quiescent current prolongs battery life in portable devices.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• No adjustable output voltage option available.
• NC pin serves no function, reducing pin utility.

Working Principles

The S-1172B46-U5T1G is a linear voltage regulator that maintains a constant output voltage regardless of changes in input voltage or 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 through the use of a low-resistance pass transistor, ensuring efficient operation even with small input-output differentials.

Detailed Application Field Plans

The S-1172B46-U5T1G is suitable for a wide range of applications, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

• S-1172B33-U5T1G: Output voltage range of 1.2V to 3.3V
• S-1172B50-U5T1G: Output voltage range of 1.2V to 5.0V
• S-1172B33-M5T1G: Output voltage range of 1.2V to 3.3V, with enable control
• S-1172B50-M5T1G: Output voltage range of 1.2V to 5.0V, with enable control

These alternative models offer similar functionality with varying output voltage ranges and enable control options.

In conclusion, the S-1172B46-U5T1G is a voltage regulator IC with low dropout voltage, high output voltage accuracy, and low quiescent current. It is commonly used in battery-powered devices, portable electronics, and various other applications. While it has limitations such as limited output current and lack of adjustable output voltage, its advantages include wide input voltage range, small package size, and excellent regulation characteristics.