S-1135A21-A6T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Accuracy, Low Quiescent Current
• Package: SOT-23-5
• Essence: Regulates voltage to a stable level
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 1.2V - 5.5V
• Dropout Voltage: 200mV @ 100mA
• Quiescent Current: 30µA
• Load Regulation: ±0.5%
• Line Regulation: ±0.3%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1135A21-A6T1U has the following 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 ensures efficient power conversion.
• High accuracy provides precise voltage regulation.
• Low quiescent current minimizes power consumption.
• Enable pin allows for easy on/off control.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Excellent load and line regulation ensure stable output voltage.
• Small package size (SOT-23-5) allows for space-saving designs.
• Low quiescent current prolongs battery life in portable applications.

Disadvantages

• Limited output current capability (100mA maximum).
• No thermal shutdown feature, which may be required in certain applications.

Working Principles

The S-1135A21-A6T1U is a linear voltage regulator that uses a PNP transistor as the pass element. It regulates the output voltage by adjusting the resistance between the input and output terminals. When the input voltage exceeds the desired output voltage, the pass element reduces the resistance to maintain a stable output. Conversely, when the input voltage drops below the desired output voltage, the resistance increases to compensate and maintain regulation.

Detailed Application Field Plans

The S-1135A21-A6T1U is commonly used in various electronic devices that require stable voltage supply, such as: - Battery-powered devices (e.g., smartphones, tablets) - Portable medical equipment - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

• S-1135A18-A6T1U: Similar specifications, but with a lower dropout voltage of 150mV @ 100mA.
• S-1135A33-A6T1U: Similar specifications, but with a higher output voltage range of 1.8V - 3.3V.

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