S-1172B40-E6T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Small package size
• Package: SOT-23-5
• Essence: This IC is designed to regulate voltage in electronic circuits, ensuring a stable and reliable power supply.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical)
• Output Current: 150mA (maximum)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1172B40-E6T1U has the following pin configuration:

```

---

| | --| Vout|-- Pin 1 --| Vin |-- Pin 2 --| GND |-- Pin 3 --| CE |-- Pin 4 --| NC |-- Pin 5 |____| ```

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered devices.
• Small package size allows for space-saving integration into compact electronic designs.

Advantages

• Reliable voltage regulation for stable operation of electronic circuits.
• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage reduces power dissipation and improves efficiency.
• High output voltage accuracy ensures precise voltage regulation.
• Low quiescent current extends battery life in portable devices.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Limited maximum output current of 150mA may not be sufficient for high-power applications.
• Operating temperature range of -40°C to +85°C may restrict usage in extreme environments.

Working Principles

The S-1172B40-E6T1U 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, adjusting the pass transistor's resistance to maintain a stable output voltage. The dropout voltage is minimized by utilizing a low-resistance pass transistor.

Detailed Application Field Plans

The S-1172B40-E6T1U can be used in various electronic applications, including: 1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from its low quiescent current and efficient voltage regulation. 2. Industrial control systems: It provides stable power supply for microcontrollers, sensors, and other components in industrial automation applications. 3. Automotive electronics: Suitable for powering automotive modules, infotainment systems, and lighting controls due to its wide input voltage range and small package size. 4. IoT devices: Enables reliable voltage regulation in Internet of Things (IoT) devices, ensuring proper functionality and longevity.

Detailed and Complete Alternative Models

1. S-1172B33-E6T1U: Similar to S-1172B40-E6T1U but with an output voltage range of 1.2V to 3.3V.
2. S-1172B50-E6T1U: Similar to S-1172B40-E6T1U but with an output voltage range of 1.2V to 5.0V.
3. S-1172B33-I6T1U: Similar to S-1172B40-E6T1U but in a different package (SOT-89-5) and with an output voltage range of 1.2V to 3.3V.

(Note: These alternative models are provided for reference and may have slight differences in specifications and pin configuration.)

In conclusion, the S-1172B40-E6T1U is a versatile voltage regulator IC that offers efficient and reliable voltage regulation for various electronic applications. Its low dropout voltage, high output voltage accuracy, and small package size make it a suitable choice for space-constrained designs. However, its limited maximum output current and operating temperature range should be considered when selecting alternative models or using it in specific applications.