S-1137B22-U5T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high current capability
• Package: SOT-23-5
• Essence: Regulates voltage to a stable level
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 1.2V - 5.5V
• Dropout Voltage: 200mV @ 500mA
• Maximum Output Current: 1A
• Quiescent Current: 75µA
• Line Regulation: ±0.05%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1137B22-U5T1G 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 ensures efficient power conversion.
• High current capability allows for powering various components.
• Enable pin provides control over the regulator's operation.
• Overcurrent protection safeguards against excessive load currents.
• Thermal shutdown protection prevents overheating.

Advantages

• Stable output voltage even with varying input voltage levels.
• Compact SOT-23-5 package enables space-saving designs.
• Low quiescent current minimizes power consumption.
• Wide operating temperature range suits various environments.
• Excellent line and load regulation for precise voltage control.

Disadvantages

• Limited output current compared to higher-rated regulators.
• Noisy output voltage under certain load conditions.
• Requires external capacitors for stability and noise reduction.

Working Principles

The S-1137B22-U5T1G 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. Any difference between these voltages is amplified and used to adjust the pass transistor, maintaining a stable output voltage.

Detailed Application Field Plans

The S-1137B22-U5T1G finds applications in various electronic devices, including: 1. Battery-powered portable devices 2. Mobile phones and smartphones 3. Digital cameras and camcorders 4. Portable audio players 5. Wireless communication modules

Detailed and Complete Alternative Models

1. S-1137B25-U5T1G: Similar specifications but with a higher maximum output current of 2A.
2. S-1137B18-U5T1G: Similar specifications but with a lower dropout voltage of 100mV @ 500mA.
3. S-1137B30-U5T1G: Similar specifications but with a wider input voltage range of 2.0V - 6.5V.

Note: These alternative models provide options based on specific requirements and constraints.

In conclusion, the S-1137B22-U5T1G is a voltage regulator IC with excellent characteristics, compact packaging, and versatile applications. Its low dropout and high current capability make it suitable for various battery-powered devices. However, designers should consider its limitations, such as limited output current and potential output voltage noise.