S-1721A1215-M6T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • High efficiency
  • Low dropout voltage
  • Small package size
  • Wide input voltage range
• Package: SOT-23-6
• Essence: This IC is designed to regulate voltage in electronic circuits, ensuring a stable output voltage regardless of input variations.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.2V
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1721A1215-M6T1G has six pins arranged as follows:

```

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| | --| Vout GND|-- Pin 1 --| Vin NC |-- Pin 2 --| EN NC |-- Pin 3 --| FB NC |-- Pin 4 --| NC NC |-- Pin 5 --| Vin NC |-- Pin 6 |___________| ```

Functional Features

• Voltage Regulation: The IC maintains a constant output voltage of 1.2V, even when the input voltage varies within the specified range.
• Low Dropout Voltage: With a typical dropout voltage of only 200mV, this IC can operate efficiently even when the input voltage is close to the desired output voltage.
• Enable Control: The EN pin allows for easy on/off control of the regulator, conserving power when not needed.
• Overcurrent Protection: The IC includes built-in protection against excessive output current, safeguarding the connected circuitry.

Advantages and Disadvantages

Advantages: - High efficiency ensures minimal power loss. - Small package size allows for space-saving integration in compact electronic devices. - Wide input voltage range provides flexibility in various applications.

Disadvantages: - Limited maximum output current of 150mA may not be suitable for high-power applications. - Dropout voltage of 200mV might be relatively high for some low-voltage systems.

Working Principles

The S-1721A1215-M6T1G utilizes a combination of internal circuitry, including a voltage reference, error amplifier, and pass transistor, to regulate the output voltage. It compares the feedback voltage (FB) with the reference voltage to adjust the pass transistor's resistance, maintaining a stable output voltage.

Detailed Application Field Plans

This voltage regulator IC finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Wearable devices - IoT modules

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the S-1721A1215-M6T1G are: - LM1117-3.3: A popular linear voltage regulator with a fixed output voltage of 3.3V. - MCP1700-3302E: Another low dropout voltage regulator with a fixed output voltage of 3.3V. - TPS79633: A high-performance voltage regulator with a fixed output voltage of 3.3V and low quiescent current.

These alternative models offer similar functionality and characteristics, providing options based on specific requirements and design constraints.

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