S-1009N25I-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-1009N25I-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 flexibility in various applications.
• Low quiescent current ensures minimal power consumption during standby mode.
• Excellent line and load regulation for stable output voltage.
• Enable pin for easy on/off control.

Advantages

• Compact SOT-23-5 package saves board space.
• Wide input voltage range makes it suitable for a variety of applications.
• Low dropout voltage minimizes power dissipation.
• Low quiescent current prolongs battery life in portable devices.
• Excellent line and load regulation ensures 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-1009N25I-I4T1U is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is slightly higher than the desired output voltage. It achieves this by using a PNP transistor as a pass element and a feedback mechanism to regulate the output voltage. The enable pin allows the user to control the on/off state of the regulator.

Detailed Application Field Plans

The S-1009N25I-I4T1U is commonly used in various electronic devices and systems where a stable and regulated power supply is required. Some typical application fields include: - Battery-powered devices such as smartphones, tablets, and portable media players. - Wireless communication modules and IoT devices. - Industrial control systems and automation equipment. - Consumer electronics like digital cameras, MP3 players, and handheld gaming consoles.

Detailed and Complete Alternative Models

• S-1009N25I-I4T1U: 2.5V to 6.0V input, 1.2V to 5.5V output, 100mA output current.
• S-1009N25I-I4T2U: 2.5V to 6.0V input, 1.2V to 5.5V output, 200mA output current.
• S-1009N25I-I4T3U: 2.5V to 6.0V input, 1.2V to 5.5V output, 300mA output current.

These alternative models offer similar functionality but with different output current capabilities to cater to various power requirements.

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