S-1009C18I-N4T1U

Product Overview

Category

S-1009C18I-N4T1U belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: SOT-23-5
• Essence: Low dropout voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

The specifications of S-1009C18I-N4T1U are as follows:

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage: 1.8V
• Output Current: 100mA (max)
• Dropout Voltage: 160mV (typ)
• Quiescent Current: 30μA (typ)
• Line Regulation: ±0.05% (typ)
• Load Regulation: ±0.3% (typ)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The pin configuration of S-1009C18I-N4T1U is as follows:

1. GND (Ground)
2. VIN (Input Voltage)
3. VOUT (Output Voltage)
4. CE (Control Enable)
5. NC (No Connection)

Functional Features

• Low dropout voltage: The S-1009C18I-N4T1U exhibits a low dropout voltage, ensuring efficient voltage regulation even when the input voltage is close to the desired output voltage.
• Low quiescent current: With a low quiescent current, this voltage regulator minimizes power consumption when the load is light or idle.
• Excellent line and load regulation: The S-1009C18I-N4T1U maintains stable output voltage despite variations in input voltage and load conditions.
• Thermal shutdown protection: This product incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient voltage regulation.
• Low quiescent current minimizes power consumption.
• Excellent line and load regulation for stable output voltage.
• Thermal shutdown protection prevents damage from overheating.

Disadvantages

• Limited output current of 100mA may not be suitable for high-power applications.
• Input voltage range limited to 2.0V to 6.0V.

Working Principles

The S-1009C18I-N4T1U operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to reduce the voltage difference. Conversely, when the input voltage drops below the desired output voltage, the pass transistor increases its resistance to compensate and maintain a stable output voltage.

Detailed Application Field Plans

The S-1009C18I-N4T1U finds applications in various electronic devices and circuits, including but not limited to:

1. Battery-powered portable devices: This voltage regulator can be used to regulate the voltage supplied to microcontrollers, sensors, and other low-power components in devices such as smartphones, tablets, and wearables.
2. IoT (Internet of Things) devices: The S-1009C18I-N4T1U is suitable for regulating voltage in IoT devices that require low power consumption and stable voltage supply.
3. Embedded systems: It can be employed in embedded systems where a reliable and regulated voltage source is essential for proper operation.
4. Automotive electronics: This voltage regulator can be utilized in automotive applications, such as infotainment systems, dashboard displays, and control modules.

Detailed and Complete Alternative Models

1. S-1009C18I-M4T1U: Similar to S-1009C18I-N4T1U, but with a different package (SOT-89-5).
2. S-1009C18I-N3T1U: Similar to S-1009C18I-N4T1U, but with an output voltage of 3.3V.
3. S-1009C18I-N5T1U: Similar to S-1009C18I-N4T1U, but with an output voltage of 5.0V.

These alternative models offer similar functionality and characteristics while providing flexibility in terms of package and output voltage options.

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