S-1172B11-U5T1G

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: 1A
• Dropout Voltage: 200mV @ 1A
• Line Regulation: ±0.05% (Typical)
• Load Regulation: ±0.3% (Typical)
• Quiescent Current: 75µA (Typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B11-U5T1G has a total of five pins arranged as follows: 1. VIN: Input voltage pin 2. GND: Ground pin 3. CE: Chip enable pin 4. VOUT: Output voltage pin 5. NC: No connection pin

Functional Features

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

Advantages

• Wide input voltage range allows for versatile applications.
• Compact SOT-23-5 package enables space-saving designs.
• Excellent line and load regulation ensure stable performance under varying conditions.
• Low dropout voltage reduces power dissipation and extends battery life.

Disadvantages

• Limited output current of 1A 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-1172B11-U5T1G is a linear voltage regulator that maintains a stable output voltage regardless of input voltage fluctuations. It achieves this by using a pass transistor to regulate the output voltage based on a reference voltage. The chip enable pin (CE) controls the operation of the regulator, allowing it to enter low-power standby mode when not in use.

Detailed Application Field Plans

The S-1172B11-U5T1G is commonly used in various electronic devices and systems, including: 1. Battery-powered portable devices such as smartphones, tablets, and digital cameras. 2. Industrial control systems requiring stable power supply for sensors and actuators. 3. Automotive electronics for powering microcontrollers, sensors, and infotainment systems. 4. Communication equipment like routers, switches, and wireless access points. 5. Consumer electronics such as gaming consoles, set-top boxes, and audio/video equipment.

Detailed and Complete Alternative Models

1. S-1172B12-U5T1G: Similar specifications but with an adjustable output voltage range.
2. S-1172B13-U5T1G: Higher output current capability of 1.5A.
3. S-1172B14-U5T1G: Lower dropout voltage of 150mV @ 1A.
4. S-1172B15-U5T1G: Extended temperature range of -40°C to +125°C.

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