S-1172B46-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Accuracy, Low Quiescent Current
• 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
• Output Current: 100mA
• Dropout Voltage: 200mV (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Quiescent Current: 30μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B46-U5T1U has a total of five pins in the SOT-23-5 package. The pin configuration is as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. NC: No connection pin
4. VOUT: Output voltage pin
5. CE: Chip enable pin

Functional Features

• Low dropout voltage ensures stable output even with low input voltage.
• High accuracy provides precise output voltage regulation.
• Low quiescent current minimizes power consumption.
• Built-in overcurrent protection safeguards the circuit from excessive current.

Advantages

• Compact SOT-23-5 package allows for space-saving designs.
• Wide input voltage range enables versatile applications.
• Excellent line and load regulation ensure stable performance.
• Low quiescent current prolongs battery life in portable devices.

Disadvantages

• Limited output current of 100mA may not be suitable for high-power applications.
• Dropout voltage of 200mV may cause a slight voltage drop across the regulator.

Working Principles

The S-1172B46-U5T1U 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 and adjusting the pass transistor accordingly. This feedback loop ensures that the output voltage remains constant despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The S-1172B46-U5T1U is commonly used in various electronic devices, including: - Battery-powered devices: Portable audio players, digital cameras, handheld gaming consoles. - Communication equipment: Wireless routers, modems, network switches. - Industrial control systems: Sensors, actuators, motor drivers. - Automotive electronics: Infotainment systems, navigation devices, lighting controls.

Detailed and Complete Alternative Models

• S-1172B33-U5T1U: Output voltage range of 1.2V to 3.3V, same package and characteristics.
• S-1172B50-U5T1U: Output voltage range of 1.2V to 5.0V, same package and characteristics.
• S-1172B12-U5T1U: Output voltage range of 1.2V to 1.8V, same package and characteristics.

These alternative models provide different output voltage ranges while maintaining similar characteristics and package options.

In conclusion, the S-1172B46-U5T1U is a versatile linear voltage regulator with low dropout, high accuracy, and low quiescent current. Its compact package and wide input voltage range make it suitable for various applications in battery-powered devices, communication equipment, industrial control systems, and automotive electronics. While it has limitations in terms of output current and dropout voltage, there are alternative models available to meet specific voltage requirements.