S-1135B20-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • High efficiency
  • Low dropout voltage
  • Wide input voltage range
  • Overcurrent protection
  • Thermal shutdown protection
• Package: SOT-23-5
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 2.0V
• Output Current: 150mA
• Dropout Voltage: 200mV @ 100mA
• Quiescent Current: 30μA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1135B20-U5T1U has a total of five pins arranged as follows:

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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

• High efficiency conversion of input voltage to stable output voltage
• Low dropout voltage ensures proper regulation even with small input-output differentials
• Overcurrent protection safeguards the circuit from excessive current flow
• Thermal shutdown protection prevents damage due to excessive heat

Advantages

• Wide input voltage range allows for versatile applications
• Low quiescent current minimizes power consumption in standby mode
• Compact SOT-23-5 package enables space-saving designs
• Excellent line and load regulation ensures stable output voltage

Disadvantages

• Limited output current of 150mA may not be sufficient for high-power applications
• NC pin serves no function, potentially wasting PCB space

Working Principles

The S-1135B20-U5T1U is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage derived from the output. The pass transistor adjusts its resistance to maintain a constant output voltage despite changes in input voltage or load conditions.

Detailed Application Field Plans

The S-1135B20-U5T1U is commonly used in various battery-powered devices, such as portable electronics, IoT devices, and wireless communication modules. Its low dropout voltage and wide input voltage range make it suitable for applications where the input voltage can vary significantly, such as battery-powered systems.

Detailed and Complete Alternative Models

• S-1133B20-U5T1G: Similar specifications but with an adjustable output voltage
• S-1135C20-U5T1U: Higher output current of 300mA
• S-1135D20-U5T1U: Lower output voltage of 1.8V

These alternative models provide flexibility in choosing the appropriate voltage regulator based on specific application requirements.

In conclusion, the S-1135B20-U5T1U is a highly efficient and compact linear voltage regulator designed for battery-powered devices. With its wide input voltage range, low dropout voltage, and various protection features, it offers reliable voltage regulation in diverse applications.