S-1133B25-I8T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-89
• Essence: Voltage Regulator IC
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 1.0A
• Dropout Voltage: 200mV (typical) at 500mA
• Quiescent Current: 45µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1133B25-I8T1U has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN | Input Voltage | | 2 | GND | Ground | | 3 | VOUT | Output Voltage |

Functional Features

• Low dropout voltage ensures stable output even with low input voltage.
• Built-in overcurrent protection prevents damage to the IC and connected devices.
• Thermal shutdown feature protects against overheating.
• Fast transient response for sudden load changes.
• Low quiescent current prolongs battery life in portable applications.

Advantages

• Wide input voltage range allows for versatile applications.
• Small package size enables space-saving designs.
• High output current capability suits various power requirements.
• Excellent line and load regulation for reliable performance.
• Robust protection features enhance system reliability.

Disadvantages

• Dropout voltage may limit efficiency in certain applications.
• Limited output voltage range compared to some other regulators.
• Higher quiescent current compared to some low-power alternatives.

Working Principles

The S-1133B25-I8T1U is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is close to the desired output voltage. It achieves this by utilizing a PNP transistor as a pass element and employing a feedback mechanism to regulate the output voltage. The internal circuitry continuously monitors the output voltage and adjusts the pass element accordingly to maintain the desired voltage level.

Detailed Application Field Plans

The S-1133B25-I8T1U is suitable for various applications where a stable and regulated power supply is required. Some potential application fields include: - Battery-powered devices such as portable electronics, handheld instruments, and wireless communication devices. - Automotive electronics, including infotainment systems, navigation units, and engine control modules. - Industrial equipment, such as factory automation systems, motor drives, and control panels. - Consumer electronics, including audio/video equipment, gaming consoles, and home appliances.

Detailed and Complete Alternative Models

• S-1133B25-M5T1U: Similar specifications but in a smaller SOT-23 package.
• S-1133B25-U5T1U: Higher output current capability of 1.5A.
• S-1133B25-I6T1U: Lower dropout voltage of 150mV at 500mA.
• S-1133B25-I9T1U: Extended temperature range of -40°C to +105°C.

Note: This is not an exhaustive list, and there may be other alternative models available from the manufacturer.

Word count: 439 words