S-1172B28-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
• Dropout Voltage: 200mV (typical) at 100mA load current
• Quiescent Current: 30µA (typical) at no load
• Output Current: 100mA (maximum)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B28-U5T1G has a total of five pins arranged in the following configuration: 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 low input voltage.
• High accuracy provides precise output voltage regulation.
• Low quiescent current minimizes power consumption during standby mode.
• Built-in overcurrent protection safeguards the circuit from excessive current.
• Thermal shutdown protection prevents damage due to overheating.

Advantages

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

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Dropout voltage may cause a slight decrease in efficiency.

Working Principles

The S-1172B28-U5T1G is a linear voltage regulator that maintains a constant output voltage regardless of input voltage fluctuations. It achieves this by using a pass transistor to regulate the output voltage based on a feedback mechanism. The chip enable pin (CE) controls the operation of the regulator, allowing it to enter low-power standby mode when not required.

Detailed Application Field Plans

The S-1172B28-U5T1G is commonly used in various electronic devices and systems, including: - Battery-powered devices such as smartphones, tablets, and portable media players. - Industrial control systems requiring stable voltage supply. - Automotive electronics for powering sensors, actuators, and control modules. - Communication equipment like routers, switches, and wireless access points. - Consumer electronics such as digital cameras, gaming consoles, and audio players.

Detailed and Complete Alternative Models

• S-1172B33-U5T1G: Similar voltage regulator with a higher output voltage range (3.3V to 5.5V).
• S-1172B18-U5T1G: Similar voltage regulator with a lower output voltage range (1.8V to 5.5V).
• S-1172B50-U5T1G: Similar voltage regulator with a higher output current capability (500mA).

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