S-817B37AY-B2-U

Product Overview

Category

The S-817B37AY-B2-U belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 3.7V
• Maximum Output Current: 50mA
• Low Quiescent Current: 1.0µA (typ.)
• Low Dropout Voltage: 160mV (typ.)
• Built-in Overcurrent Protection
• Small Package Size: SOT-23-5

Package

The S-817B37AY-B2-U is packaged in a SOT-23-5 package, which is a small surface-mount package with five pins.

Essence

The essence of the S-817B37AY-B2-U is its ability to regulate voltage efficiently and reliably in electronic circuits.

Packaging/Quantity

This product is typically available in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 3.7V
• Output Current: 50mA (max)
• Dropout Voltage: 160mV (typ)
• Quiescent Current: 1.0µA (typ)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The S-817B37AY-B2-U has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. NC (No Connection)
4. VOUT (Output Voltage)
5. EN (Enable)

Functional Features

• Voltage Regulation: The S-817B37AY-B2-U provides a stable output voltage of 3.7V, regardless of input voltage fluctuations.
• Overcurrent Protection: This product has built-in overcurrent protection to safeguard the circuit from excessive current flow.
• Low Quiescent Current: With a quiescent current of only 1.0µA, the S-817B37AY-B2-U minimizes power consumption when not in use.
• Low Dropout Voltage: The dropout voltage of 160mV ensures efficient operation even with low input voltages.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Small package size enables space-saving designs.
• Built-in overcurrent protection enhances circuit reliability.
• Low quiescent current reduces power consumption.

Disadvantages

• Limited maximum output current of 50mA may not be suitable for high-power applications.
• Dropout voltage of 160mV may affect efficiency in certain scenarios.

Working Principles

The S-817B37AY-B2-U utilizes a voltage reference, error amplifier, and pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a constant output voltage. Conversely, if the input voltage drops below the desired output voltage, the pass transistor increases its resistance to compensate and maintain a stable output.

Detailed Application Field Plans

The S-817B37AY-B2-U is commonly used in various electronic devices and circuits, including but not limited to: - Battery-powered devices - Portable audio players - Wearable devices - IoT (Internet of Things) applications - Sensor modules - Medical devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the S-817B37AY-B2-U are: - S-817B33AMC-CWJT2G - S-817B33AMC-CXJT2G - S-817B33AMC-DWJT2G - S-817B33AMC-DXJT2G

These alternative models offer similar voltage regulation capabilities and package options, providing flexibility in design choices.

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