S-1312D12-A4T1U3

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: SOT-23-5
• Essence: Regulates input voltage to a stable output voltage
• Packaging/Quantity: Tape and reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 1.2V
• Output Current: 100mA
• Dropout Voltage: 150mV (typical)
• Quiescent Current: 30μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1312D12-A4T1U3 IC has the following pin configuration:

```

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| | --| V IN|-- Pin 1: Input Voltage --|____| | | --| GND|-- Pin 2: Ground --|____| | | --| V OUT|-- Pin 3: Output Voltage --|____| | | --| CE |-- Pin 4: Chip Enable --|____| | | --| NC |-- Pin 5: No Connection --|____| ```

Functional Features

• Low dropout voltage ensures efficient power conversion.
• High accuracy provides a stable output voltage.
• Low quiescent current minimizes power consumption.
• Chip enable pin allows for easy control of the regulator.

Advantages

• Wide input voltage range allows for versatile applications.
• Small package size (SOT-23-5) enables space-saving designs.
• Excellent line and load regulation characteristics ensure stable performance.
• Low dropout voltage makes it suitable for battery-powered devices.

Disadvantages

• Limited output current (100mA) may not be sufficient for high-power applications.
• Single fixed output voltage (1.2V) restricts flexibility in certain designs.

Working Principles

The S-1312D12-A4T1U3 is a linear voltage regulator that uses a PNP transistor as the pass element. It regulates the input voltage to a stable 1.2V output voltage by adjusting the resistance of the pass element. The chip enable pin allows the user to control the regulator's operation, enabling power-saving modes when not required.

Detailed Application Field Plans

The S-1312D12-A4T1U3 is commonly used in various electronic devices and systems, including: - Battery-powered portable devices (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - IoT (Internet of Things) devices - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

• S-1312D12-M5T1U3: Same specifications, different package (SOT-23-5)
• S-1312D12-A4T2U3: Same specifications, different pin configuration (inverted CE and NC pins)
• S-1312D12-A4T1U4: Same specifications, additional thermal shutdown feature

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