S-1009C39I-I4T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management IC
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-23-5
• Essence: Regulates voltage with low dropout
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 100mA
• Dropout Voltage: 160mV @ 100mA
• Quiescent Current: 30µA (typical)

Detailed Pin Configuration

The S-1009C39I-I4T1U has a total of five pins: 1. VIN: Input voltage pin 2. GND: Ground pin 3. CE: Chip enable pin 4. VOUT: Output voltage pin 5. NC: No connection pin

Functional Features

• Low dropout voltage: The S-1009C39I-I4T1U provides a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low quiescent current: With a typical quiescent current of only 30µA, this IC minimizes power consumption in standby or low-load conditions.
• Overcurrent protection: The device incorporates overcurrent protection, safeguarding the circuit from excessive current flow and potential damage.

Advantages and Disadvantages

Advantages: - Efficient voltage regulation with low dropout - Low quiescent current for reduced power consumption - Overcurrent protection ensures circuit safety

Disadvantages: - Limited maximum output current (100mA) - Restricted input voltage range (2.5V to 6.0V)

Working Principles

The S-1009C39I-I4T1U is a low dropout voltage regulator that maintains a stable output voltage despite variations in the input voltage. It achieves this by utilizing a pass transistor that adjusts its resistance to compensate for changes in the input voltage. The chip enable pin (CE) allows the user to control the regulator's operation, enabling or disabling the output as needed.

Detailed Application Field Plans

The S-1009C39I-I4T1U finds applications in various electronic devices where efficient voltage regulation is required. Some potential application fields include: - Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices can benefit from the low dropout voltage and low quiescent current of this IC. - IoT devices: Internet of Things (IoT) devices often operate on limited power sources and require efficient power management. The S-1009C39I-I4T1U can be used in sensors, smart home devices, and other IoT applications. - Automotive electronics: With its ability to regulate voltage within a wide input range, this IC can be employed in automotive systems, including infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

1. S-1009C33I-I4T1U: Similar to S-1009C39I-I4T1U but with an output voltage range of 1.2V to 3.3V.
2. S-1009C50I-I4T1U: Similar to S-1009C39I-I4T1U but with an output voltage range of 1.2V to 5.0V.
3. S-1009C25I-I4T1U: Similar to S-1009C39I-I4T1U but with an output voltage range of 1.2V to 2.5V.

These alternative models provide similar functionality but with different output voltage ranges, allowing for flexibility in various applications.

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