LD39100PU33RY

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Capability
• Package: TO-220
• Essence: Regulates voltage with low dropout and high current capability
• Packaging/Quantity: Bulk packaging, typically sold in reels of 1000 units

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD39100PU33RY has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. BYPASS: Bypass capacitor connection pin
5. EN: Enable pin for turning the regulator on/off

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High current capability allows the regulator to handle loads up to 1A.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit protection safeguards the regulator and connected components from damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage minimizes power dissipation and improves efficiency. - High current capability makes it suitable for powering various electronic devices. - Thermal shutdown and short-circuit protection enhance reliability and safety.

Disadvantages: - Limited output current compared to some other voltage regulators. - Requires external bypass capacitors for optimal performance.

Working Principles

The LD39100PU33RY is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage.

Detailed Application Field Plans

The LD39100PU33RY is commonly used in various applications, including but not limited to: - Powering microcontrollers and other digital ICs in embedded systems. - Providing regulated power supply for sensors, actuators, and communication modules in IoT devices. - Voltage regulation in automotive electronics, such as infotainment systems and engine control units. - Powering portable electronic devices, such as smartphones, tablets, and portable audio players.

Detailed and Complete Alternative Models

• LD39100PU33G: Similar specifications and features, but available in a different package (TO-263).
• LD39100PU33R: Same specifications and features, but with an adjustable output voltage.
• LD39100PU33Y: Similar specifications and features, but optimized for low noise applications.

Note: The above alternative models are provided for reference and may have slight differences in package, pin configuration, or additional features.

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