S-1135A18-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 ensure stable power supply
• 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
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30µA (typical)
• Load Regulation: ±0.5% (typical)
• Line Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1135A18-A6T1U has a total of five pins: 1. VIN: Input voltage pin 2. GND: Ground pin 3. EN: Enable pin for turning the regulator on/off 4. FB: Feedback pin for setting the output voltage 5. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• High accuracy provides precise regulation of the output voltage.
• Low quiescent current minimizes power consumption in standby mode.
• Built-in overcurrent protection safeguards the circuit from excessive current.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows flexibility in various applications. - Small package size enables space-saving designs. - Excellent load and line regulation provide stable output voltage. - Low quiescent current prolongs battery life in portable devices.

Disadvantages: - Limited output current capability (100mA maximum). - Not suitable for high-power applications.

Working Principles

The S-1135A18-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 constant output voltage. Conversely, when the input voltage drops below the desired output voltage, the pass element increases the resistance to compensate and stabilize the output voltage.

Detailed Application Field Plans

The S-1135A18-A6T1U is commonly used in various electronic devices, including: 1. Battery-powered devices: Portable audio players, digital cameras, and handheld gaming consoles. 2. Communication equipment: Mobile phones, wireless routers, and Bluetooth headsets. 3. Industrial applications: Sensors, control systems, and power management modules. 4. Automotive electronics: Infotainment systems, navigation units, and engine control units.

Detailed and Complete Alternative Models

1. S-1135A18-A6T2U: Similar specifications but with a different package (SOT-89-5).
2. S-1135A18-A6T3U: Higher output current capability (300mA) but with a larger package (SOT-23-6).
3. S-1135A18-A6T4U: Lower quiescent current (10µA) but with a narrower input voltage range (2.7V to 5.5V).

(Note: These alternative models are provided for reference and may have slight variations in specifications.)

This entry provides comprehensive information about the S-1135A18-A6T1U voltage regulator. Its basic information overview, detailed specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models are covered.