S-1135A31-U5T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: SOT-23-5
• Essence: Regulates input voltage to a stable output voltage
• 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
• Output Current: 150mA
• Line Regulation: ±0.05%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1135A31-U5T1U has a standard SOT-23-5 package with the following pin 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: CE (Enable Control)

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High accuracy provides precise output voltage control.
• Low quiescent current minimizes power consumption in standby mode.
• Enable control allows for easy on/off switching of the regulator.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Stable output voltage ensures reliable operation of connected devices.
• Small package size allows for space-saving integration in compact designs.
• Low quiescent current prolongs battery life in portable applications.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Dropout voltage may cause a slight power loss in low input voltage scenarios.

Working Principles

The S-1135A31-U5T1U is a linear voltage regulator that utilizes a pass transistor to regulate the input voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a stable output voltage. The enable control pin allows the user to turn the regulator on or off as needed.

Detailed Application Field Plans

The S-1135A31-U5T1U is commonly used in various electronic devices and systems, including: 1. Battery-powered devices: Portable audio players, handheld gaming consoles, and digital cameras. 2. IoT (Internet of Things) devices: Smart sensors, wearable devices, and home automation systems. 3. Automotive electronics: Infotainment systems, GPS navigation units, and dashboard displays. 4. Industrial equipment: Measurement instruments, control systems, and motor drivers. 5. Communication devices: Wireless routers, modems, and network switches.

Detailed and Complete Alternative Models

1. S-1135A18-U5T1U: Similar specifications but with a lower dropout voltage of 180mV @ 100mA.
2. S-1135A33-U5T1U: Similar specifications but with a higher output current of 300mA.
3. S-1135A50-U5T1U: Similar specifications but with a higher input voltage range of 2.5V - 7.0V.

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

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