LT3045IDD#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Power Supply Rejection Ratio (PSRR) - Low Output Noise - Adjustable Output Voltage - Current Limit Protection

Package: DFN-8 (3mm x 3mm)

Essence: The LT3045IDD#TRPBF is a high-performance, low dropout voltage regulator designed for various applications requiring a stable and precise output voltage.

Packaging/Quantity: The LT3045IDD#TRPBF is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 1.8V to 20V
• Output Voltage Range: 0.6V to 15V
• Dropout Voltage: 200mV at 500mA Load
• Line Regulation: ±0.005% Typical
• Load Regulation: ±0.02% Typical
• Output Noise: 2µVRMS (10Hz to 100kHz)
• PSRR: 75dB at 1kHz
• Quiescent Current: 1.7mA
• Maximum Output Current: 500mA

Pin Configuration

The LT3045IDD#TRPBF has the following pin configuration:

```

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| | --| VIN VOUT |-- --| GND NC |-- |___________| ```

• VIN: Input Voltage
• VOUT: Output Voltage
• GND: Ground
• NC: No Connection

Functional Features

• Low dropout voltage allows operation with small input-output differentials.
• High power supply rejection ratio ensures stability even in noisy environments.
• Low output noise provides clean and reliable power for sensitive applications.
• Adjustable output voltage allows flexibility in various circuit designs.
• Current limit protection prevents damage due to excessive load current.

Advantages and Disadvantages

Advantages: - High performance and precision - Wide input voltage range - Low dropout voltage - Excellent line and load regulation - Low output noise - Adjustable output voltage

Disadvantages: - Relatively high quiescent current compared to some other voltage regulators - Limited maximum output current (500mA)

Working Principles

The LT3045IDD#TRPBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The device employs advanced circuitry to achieve low dropout voltage, high PSRR, and low output noise.

Detailed Application Field Plans

The LT3045IDD#TRPBF finds applications in various fields, including but not limited to: 1. Precision instrumentation 2. Audio equipment 3. Communication systems 4. Industrial control systems 5. Battery-powered devices 6. Medical equipment 7. Automotive electronics

Detailed and Complete Alternative Models

1. LT3042IDD#TRPBF: Similar to LT3045IDD#TRPBF but with a lower maximum output current of 200mA.
2. LT3080IDD#TRPBF: Higher maximum output current of 1.1A but with a higher dropout voltage.
3. LT1764EQ-1.8#TRPBF: Fixed output voltage of 1.8V with a maximum output current of 3A.

These alternative models provide options based on specific requirements and constraints of different applications.

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