S-1009N21I-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 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: 200mV (typical)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

• Low dropout voltage for efficient power management
• Wide input voltage range allows flexibility in power supply selection
• Low quiescent current for power-saving applications
• Enable pin for easy on/off control
• Short-circuit protection for enhanced safety

Advantages

• Compact SOT-23-5 package for space-constrained designs
• Wide input voltage range enables compatibility with various power sources
• Low dropout voltage ensures efficient power conversion
• Low quiescent current prolongs battery life in portable devices
• Enable pin offers convenient power control

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Dropout voltage of 200mV may cause a slight voltage drop across the regulator

Working Principles

The S-1009N21I-I4T1U is a low dropout voltage regulator IC designed to provide a stable output voltage despite variations in the input voltage. It operates by regulating the voltage difference between the input and output to maintain a constant output voltage. The enable pin allows the user to turn the regulator on or off as needed. The IC also incorporates short-circuit protection to prevent damage in case of a fault.

Detailed Application Field Plans

The S-1009N21I-I4T1U is commonly used in various electronic devices that require stable power supply, such as: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices

Detailed and Complete Alternative Models

• S-1009N21I-M5T1U
• S-1009N21I-N4T1U
• S-1009N21I-P5T1U
• S-1009N21I-Q4T1U

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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