S-1009N28I-I4T1U

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low dropout voltage regulator - High output voltage accuracy - Low quiescent current - Overcurrent protection - Thermal shutdown protection

Package: SOT-23-5

Essence: The S-1009N28I-I4T1U is a power management IC designed for low dropout voltage regulation in various electronic devices.

Packaging/Quantity: The S-1009N28I-I4T1U is typically packaged in reels, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 1.8V to 5.0V
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 30μA (typical)
• Output Current: 100mA (maximum)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1009N28I-I4T1U has the following pin configuration:

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-1009N28I-I4T1U maintains a low dropout voltage, ensuring efficient power delivery even when the input voltage is close to the desired output voltage.
• Overcurrent protection: The IC incorporates overcurrent protection, safeguarding the connected circuitry from excessive current flow.
• Thermal shutdown protection: In case of excessive temperature rise, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High output voltage accuracy ensures stable power supply to connected devices. - Low quiescent current minimizes power consumption in standby mode. - Small package size (SOT-23-5) allows for space-efficient integration into various electronic designs.

Disadvantages: - Limited output current capacity (100mA maximum) may not be suitable for high-power applications. - Input voltage range is relatively narrow (2.0V to 6.0V), limiting compatibility with certain power sources.

Working Principles

The S-1009N28I-I4T1U operates as a low dropout voltage regulator. It regulates the input voltage to provide a stable output voltage, even when the input voltage is close to the desired output voltage. The IC achieves this by utilizing a feedback mechanism that continuously adjusts the internal circuitry to maintain the desired output voltage.

Detailed Application Field Plans

The S-1009N28I-I4T1U can be used in various electronic devices that require stable power supply, such as: - Mobile phones - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models to the S-1009N28I-I4T1U include: - S-1009N28I-M4T1U - S-1009N28I-J4T1U - S-1009N28I-K4T1U

These alternative models offer similar functionality and characteristics, providing flexibility in design choices.

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