S-1721A3330-I6T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: SOT-23-6
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 0.8V to 5.5V
• Output Current: 300mA (maximum)
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1721A3330-I6T1U IC has a total of six pins arranged in the following configuration:

```

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

Pin 1: Vout - Output Voltage Pin 2: Vin - Input Voltage Pin 3: EN - Enable Pin Pin 4: FB - Feedback Pin Pin 5: NC - No Connection Pin 6: GND - Ground

Functional Features

• High efficiency voltage regulation
• Low power consumption
• Built-in overcurrent protection
• Thermal shutdown protection
• Short-circuit protection
• Under-voltage lockout

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power loss - Low power consumption extends battery life - Overcurrent, thermal shutdown, and short-circuit protection enhance reliability - Under-voltage lockout prevents damage to connected devices

Disadvantages: - Limited output current (maximum 300mA) - Dropout voltage of 200mV may affect performance in low input voltage scenarios

Working Principles

The S-1721A3330-I6T1U is a voltage regulator IC that maintains a stable output voltage regardless of fluctuations in the input voltage. It achieves this by using an internal reference voltage and feedback mechanism. The input voltage is regulated to the desired output voltage by adjusting the duty cycle of an internal switching transistor. This allows for efficient power conversion while minimizing power loss.

Detailed Application Field Plans

The S-1721A3330-I6T1U is commonly used in various portable electronic devices, such as smartphones, tablets, and wearable devices. Its compact package and low power consumption make it suitable for applications where space and battery life are critical. Some specific application areas include:

1. Mobile Phones: Power management for various components, including display, processor, and memory.
2. Portable Media Players: Voltage regulation for audio and video processing circuits.
3. Wearable Devices: Power supply for sensors, microcontrollers, and wireless communication modules.
4. IoT Devices: Voltage regulation for sensors, actuators, and connectivity modules.

Detailed and Complete Alternative Models

1. S-1711A3330-I6T1U: Similar specifications and pin configuration, but with a lower dropout voltage of 150mV.
2. S-1721B3330-I6T1U: Higher output current capability (500mA) with similar characteristics and pin configuration.
3. S-1721A3330-I6T2U: Same specifications and pin configuration, but available in a different package (SOT-89-5).

These alternative models provide flexibility in choosing the most suitable voltage regulator based on specific requirements and constraints.

In conclusion, the S-1721A3330-I6T1U is a voltage regulator IC that offers high efficiency, low power consumption, and various protection features. Its compact package and wide input/output voltage range make it suitable for a range of portable electronic devices. However, its limited output current and dropout voltage should be considered when designing applications with low input voltages.