S-1009C19I-I4T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-23-5
• Essence: Voltage Regulator IC
• Packaging/Quantity: Tape and Reel, 3000 pieces 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: 200mV (typical) at 100mA
• Quiescent Current: 30µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1009C19I-I4T1U has a total of five pins arranged in the following configuration:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: NC (No Connection) Pin 4: VOUT (Output Voltage) Pin 5: EN (Enable)

Functional Features

• Low dropout voltage for efficient power management.
• Wide input voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Excellent line and load regulation for stable output voltage.
• Enable pin for easy control of the regulator.

Advantages

• Compact SOT-23-5 package for space-constrained designs.
• Wide input voltage range makes it suitable for various power sources.
• Low dropout voltage ensures efficient power conversion.
• Low quiescent current prolongs battery life.
• Excellent line and load regulation for stable output voltage.

Disadvantages

• Limited maximum output current of 100mA may not be sufficient for high-power applications.
• No thermal shutdown feature, which could be a concern in certain operating conditions.

Working Principles

The S-1009C19I-I4T1U is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is slightly lower than the desired output voltage. It achieves this by utilizing a PNP transistor as a pass element and a feedback control circuit to regulate the output voltage. The enable pin allows the user to turn the regulator on or off as needed.

Detailed Application Field Plans

The S-1009C19I-I4T1U is commonly used in various portable electronic devices, such as smartphones, tablets, and wearable devices. It provides a stable power supply for critical components, ensuring proper functionality and performance. Additionally, it can be employed in battery-powered applications where efficient power management is crucial for maximizing battery life.

Detailed and Complete Alternative Models

• S-1009C19I-M4T1U: Similar specifications and features, but with an adjustable output voltage.
• S-1009C19I-N4T1U: Same specifications and features, but in a different package (SOT-89-5).

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