S-1721A1215-I6T1U

Basic Information Overview

• Category: Electronic Component
• Use: Power Management
• Characteristics: Voltage Regulator
• Package: SOT-23-6
• Essence: Step-Down DC-DC Converter
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage: 1.2V
• Output Current: 1.5A
• Switching Frequency: 1.2MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. SW: Switching Node
6. VOUT: Output Voltage

Functional Features

• High Efficiency: The S-1721A1215-I6T1U offers up to 95% efficiency, ensuring minimal power loss during voltage conversion.
• Wide Input Voltage Range: With an input voltage range of 4.5V to 18V, this voltage regulator can handle a variety of power sources.
• Stable Output Voltage: It provides a stable output voltage of 1.2V, suitable for powering various electronic devices.
• Overcurrent Protection: The device incorporates overcurrent protection, safeguarding against excessive current flow.
• Thermal Shutdown: In case of overheating, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range allows compatibility with different power sources.
• Stable output voltage ensures reliable performance.
• Overcurrent protection enhances safety.
• Thermal shutdown prevents damage due to overheating.

Disadvantages

• Limited output current of 1.5A may not be sufficient for high-power applications.
• SOT-23-6 package may require additional space on the PCB.

Working Principles

The S-1721A1215-I6T1U is a step-down DC-DC converter that utilizes pulse-width modulation (PWM) to regulate the output voltage. It operates by switching the input voltage on and off at a high frequency, which is then filtered and smoothed to provide a stable output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the switching signal to maintain the desired output voltage.

Detailed Application Field Plans

The S-1721A1215-I6T1U is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include: - Mobile Devices: Smartphones, tablets, portable media players. - Computer Peripherals: Hard drives, optical drives, USB hubs. - Industrial Equipment: Sensors, actuators, control systems. - Automotive Electronics: Infotainment systems, navigation devices, lighting controls.

Detailed and Complete Alternative Models

1. S-1721A1215-I6T1G: Similar specifications and features, but available in a different packaging option (SOT-23-6).
2. S-1721A1215-I6T2U: Higher output current of 2A, suitable for more demanding applications.
3. S-1721A1215-I6T3U: Lower output voltage of 1.0V, ideal for specific low-power devices.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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