S-1135B21-U5T1U

Product Overview

Category

S-1135B21-U5T1U belongs to the category of voltage regulators.

Use

This product is used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV (at 100mA)
• Quiescent Current: 30µA (typical)
• Package Type: SOT-23-5
• Essence: Low dropout voltage, low quiescent current, and small package size.
• Packaging/Quantity: This product is typically packaged in reels of 3,000 units.

Specifications

• Input Voltage Range: 2.0V to 6.0V
• Output Voltage Range: 0.8V to 5.5V
• Output Current: Up to 300mA
• Dropout Voltage: 200mV (at 100mA)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The S-1135B21-U5T1U has a total of five pins:

1. VIN: Input voltage pin.
2. GND: Ground pin.
3. VOUT: Output voltage pin.
4. CE: Chip enable pin.
5. NC: No connection pin.

Functional Features

• Low dropout voltage: The S-1135B21-U5T1U exhibits a low dropout voltage of only 200mV at 100mA output current, ensuring efficient voltage regulation even with low input voltages.
• Low quiescent current: With a typical quiescent current of 30µA, this voltage regulator minimizes power consumption during standby or idle modes, making it suitable for battery-powered applications.
• Small package size: The SOT-23-5 package offers a compact form factor, enabling space-saving integration into various electronic devices.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient voltage regulation.
• Low quiescent current minimizes power consumption.
• Small package size allows for space-saving integration.

Disadvantages

• Limited output current capacity (up to 300mA).
• Input voltage range is restricted to 2.0V to 6.0V.

Working Principles

The S-1135B21-U5T1U operates based on the principle of linear voltage regulation. It utilizes an internal pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. This enables the device to maintain a stable output voltage even when the input voltage varies within the specified range.

Detailed Application Field Plans

The S-1135B21-U5T1U finds application in various electronic systems where precise voltage regulation is required. Some potential application fields include:

1. Portable electronic devices: This voltage regulator can be used in smartphones, tablets, portable media players, and other battery-powered devices to ensure stable power supply to sensitive components.
2. IoT devices: Internet of Things (IoT) devices often operate on low voltages and require efficient voltage regulation. The S-1135B21-U5T1U can be employed in IoT sensors, smart home devices, and wearable technology.
3. Automotive electronics: In automotive applications, this voltage regulator can be utilized for powering microcontrollers, sensors, and other electronic components, ensuring reliable operation under varying voltage conditions.

Detailed and Complete Alternative Models

1. S-1135B21-M5T1U: Similar to S-1135B21-U5T1U, but with a different package type (SOT-23-5).
2. S-1135B21-N5T1U: Another alternative with the same specifications and package type as S-1135B21-U5T1U.
3. S-1135B21-R5T1U: A variant of S-1135B21-U5T1U with extended temperature range (-40°C to +105°C).

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable voltage regulator for specific applications.

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