S-817B43AUA-CXGT2G

Product Overview

Category

The S-817B43AUA-CXGT2G belongs to the category of voltage regulators.

Use

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

Characteristics

• The S-817B43AUA-CXGT2G is a low dropout voltage regulator.
• It operates with an input voltage range of 1.7V to 6.0V.
• The output voltage can be set between 1.2V and 5.5V.
• It has a maximum output current of 150mA.
• This regulator offers high precision and low noise performance.
• It features a built-in overcurrent protection circuit.
• The S-817B43AUA-CXGT2G is available in a small SOT-89 package.

Package and Quantity

The S-817B43AUA-CXGT2G is packaged in a SOT-89 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Input Voltage Range: 1.7V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 150mA
• Dropout Voltage: 160mV (at 100mA)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-817B43AUA-CXGT2G has three pins:

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

Functional Features

• Low dropout voltage: The S-817B43AUA-CXGT2G operates with a low dropout voltage, ensuring efficient voltage regulation even when the input voltage is close to the desired output voltage.
• Overcurrent protection: This regulator incorporates a built-in overcurrent protection circuit that safeguards the device and the connected circuitry from excessive current flow.
• High precision and low noise: The S-817B43AUA-CXGT2G offers high precision voltage regulation with minimal output voltage fluctuations, making it suitable for applications requiring stable power supply.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile use in various electronic circuits.
• Small package size enables space-saving designs.
• Built-in overcurrent protection enhances circuit reliability.
• High precision and low noise performance ensure stable power supply.

Disadvantages

• Limited maximum output current of 150mA may not be sufficient for power-hungry applications.
• Dropout voltage of 160mV may cause some power loss in low voltage applications.

Working Principles

The S-817B43AUA-CXGT2G 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 reduces its resistance to compensate and provide a stable output voltage.

Detailed Application Field Plans

The S-817B43AUA-CXGT2G can be applied in various electronic systems, including but not limited to: 1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and wearables. 2. Industrial control systems: Ensures stable power supply for sensors, actuators, and control circuits. 3. Automotive electronics: Suitable for voltage regulation in automotive applications like infotainment systems, lighting modules, and engine control units. 4. IoT devices: Enables reliable power supply for Internet of Things (IoT) devices, including sensors, gateways, and communication modules.

Detailed and Complete Alternative Models

1. S-817A33AUA-CXGT2G
2. S-817B33AUA-CXGT2G
3. S-817B33AUA-CXHT2G
4. S-817B33AUA-CXJT2G
5. S-817B33AUA-CXKT2G

These alternative models offer similar voltage regulation capabilities and package options as the S-817B43AUA-CXGT2G.

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