S-817B57AY-B2-U

Product Overview

Category

The S-817B57AY-B2-U belongs to the category of voltage regulators.

Use

This product is primarily used for voltage regulation in electronic circuits.

Characteristics

• Package: The S-817B57AY-B2-U comes in a small surface-mount package.
• Essence: It is a low-dropout voltage regulator with a fixed output voltage.
• Packaging/Quantity: This product is typically packaged in reels or tubes, with varying quantities depending on the supplier.

Specifications

The specifications of the S-817B57AY-B2-U are as follows:

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 5.7V (fixed)
• Output Current: Up to 50mA
• Dropout Voltage: 160mV (typical)
• Quiescent Current: 35µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-817B57AY-B2-U has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

The functional features of the S-817B57AY-B2-U include:

• Low dropout voltage: The regulator maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: The device consumes minimal current when in standby mode, resulting in improved energy efficiency.
• Short-circuit protection: The regulator is designed to protect against short-circuits, preventing damage to the circuitry.
• Thermal shutdown protection: In case of excessive temperature, the regulator automatically shuts down to prevent overheating.

Advantages and Disadvantages

Advantages: - Compact size and surface-mount package make it suitable for space-constrained applications. - Fixed output voltage eliminates the need for external resistors. - Low dropout voltage ensures efficient power conversion.

Disadvantages: - Limited output current capacity may not be suitable for high-power applications. - Fixed output voltage restricts flexibility in certain designs.

Working Principles

The S-817B57AY-B2-U operates based on the principle of a low-dropout voltage regulator. It regulates the input voltage to a fixed output voltage by utilizing an internal voltage reference and feedback mechanism. The device continuously monitors the output voltage and adjusts the internal circuitry to maintain a stable output, even when the input voltage fluctuates.

Detailed Application Field Plans

The S-817B57AY-B2-U finds application in various electronic devices and circuits, including but not limited to:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices often require stable voltage regulation to ensure proper functionality.
2. IoT devices: Internet of Things (IoT) devices that operate on low power can benefit from the low quiescent current and compact size of this regulator.
3. Automotive electronics: The S-817B57AY-B2-U can be used in automotive applications where a stable voltage supply is crucial for reliable operation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the S-817B57AY-B2-U include:

1. S-817A Series: This series offers a range of fixed output voltages with different current capacities.
2. S-817B Series: Similar to the S-817B57AY-B2-U, this series provides fixed output voltages but with varying current limits.
3. S-817C Series: These regulators have adjustable output voltages, allowing for greater flexibility in design.

In conclusion, the S-817B57AY-B2-U is a low-dropout voltage regulator that provides stable voltage regulation in electronic circuits. Its compact size, low dropout voltage, and low quiescent current make it suitable for various applications, including battery-powered devices, IoT devices, and automotive electronics. While it has limitations in terms of output current capacity and fixed output voltage, alternative models are available to cater to different requirements.