S-1172B43-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Accuracy
• Package: SOT-89-5
• Essence: Regulates voltage with minimal power loss
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV @ 500mA
• Output Current: 500mA
• Quiescent Current: 75µA
• Line Regulation: ±0.05%
• Load Regulation: ±0.3%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B43-U5T1U has a total of five pins arranged as follows: 1. VIN: Input voltage pin 2. GND: Ground pin 3. VOUT: Output voltage pin 4. CE: Chip enable pin 5. NC: No connection pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• High accuracy provides precise output voltage control.
• Built-in overcurrent protection safeguards the circuit from excessive current flow.
• Thermal shutdown feature prevents overheating and damage to the IC.

Advantages and Disadvantages

Advantages: - Low dropout voltage minimizes power dissipation. - High accuracy ensures stable output voltage. - Overcurrent protection enhances circuit reliability. - Thermal shutdown prevents IC damage due to excessive heat.

Disadvantages: - Limited output current of 500mA may not be suitable for high-power applications. - Restricted input voltage range may limit compatibility with certain systems.

Working Principles

The S-1172B43-U5T1U is a voltage regulator IC that maintains a stable output voltage regardless of input voltage fluctuations. It utilizes a feedback mechanism to adjust the internal resistance and maintain the desired output voltage. The low dropout voltage allows for efficient regulation, while the high accuracy ensures precise voltage control.

Detailed Application Field Plans

The S-1172B43-U5T1U finds applications in various electronic devices, including: 1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and digital cameras. 2. Automotive systems: Ensures stable voltage supply for automotive electronics, including infotainment systems and engine control units. 3. Industrial equipment: Used in power supplies for industrial machinery, ensuring reliable operation under varying load conditions. 4. Communication devices: Regulates voltage for routers, modems, and other networking equipment, maintaining signal integrity.

Detailed and Complete Alternative Models

1. S-1172B33-U5T1U: Similar voltage regulator with a lower output voltage range (1.2V to 3.3V).
2. S-1172B50-U5T1U: Voltage regulator with a higher output voltage range (1.2V to 5.0V) and increased output current capability (700mA).

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