LT3055IDE#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High PSRR, Adjustable Output
• Package: DFN-8
• Essence: Linear Technology Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 1.8V to 45V
• Output Voltage Range: 0.6V to 44V
• Dropout Voltage: 340mV at 500mA Load Current
• Line Regulation: ±0.02% Typical
• Load Regulation: ±0.1% Typical
• Quiescent Current: 1.7mA Typical
• PSRR: 80dB at 1kHz
• Temperature Range: -40°C to +125°C

Pin Configuration

The LT3055IDE#TRPBF package consists of 8 pins arranged as follows:

```

---

| | | U1 | |___________|

Pin Configuration:

1. IN
2. GND
3. ADJ
4. OUT
5. NC
6. NC
7. NC
8. NC ```

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• High power supply rejection ratio (PSRR) ensures stable output voltage despite variations in the input voltage.
• Adjustable output voltage provides flexibility in various applications.
• Low quiescent current minimizes power consumption when the regulator is idle.
• Overcurrent and thermal protection ensure safe operation.

Advantages and Disadvantages

Advantages: - Wide input voltage range enables compatibility with a variety of power sources. - High PSRR ensures stable output voltage in noisy environments. - Adjustable output voltage allows for customization based on specific requirements. - Low dropout voltage minimizes power dissipation and extends battery life. - Overcurrent and thermal protection enhance reliability.

Disadvantages: - Relatively high quiescent current compared to some other voltage regulators. - Limited maximum output current may not be suitable for high-power applications.

Working Principles

The LT3055IDE#TRPBF 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 constant output voltage. The adjustable output voltage is set using an external resistor connected to the ADJ pin.

Detailed Application Field Plans

The LT3055IDE#TRPBF is commonly used in various applications, including:

1. Battery-powered devices: Provides stable voltage regulation for portable electronics, such as smartphones, tablets, and wearable devices.
2. Industrial equipment: Ensures reliable power supply for control systems, sensors, and communication modules.
3. Automotive electronics: Regulates voltage for automotive infotainment systems, lighting controls, and engine management units.
4. Communication systems: Maintains stable voltage for routers, switches, and wireless access points.
5. Medical devices: Provides precise voltage regulation for medical instruments, patient monitoring systems, and diagnostic equipment.

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with a wide input voltage range and low dropout voltage.
2. LT1086: Low dropout positive voltage regulator with adjustable output and high PSRR.
3. LM1117: Fixed voltage regulator available in various output voltages with low dropout voltage.
4. LT1763: Ultra-low dropout linear regulator with adjustable output and low quiescent current.
5. LDO50V: Low dropout voltage regulator designed for high-voltage applications.

Note: The above list is not exhaustive and serves as a reference for alternative models.

This entry provides an overview of the LT3055IDE#TRPBF voltage regulator, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.