LT3028IDHC#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout Linear Regulator
• Package: DFN-12
• Essence: High-performance voltage regulator with low dropout voltage
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 1.8V to 20V
• Output Voltage Range: 0.6V to 18V
• Dropout Voltage: 300mV at 500mA load current
• Output Current: Up to 500mA
• Quiescent Current: 30µA
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.1% typical
• Ripple Rejection: 70dB at 1kHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3028IDHC#TRPBF is a DFN-12 package with the following pin configuration:

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| | | LT3028IDHC#TRPBF | |_______________________________________| | | | 1 2 3 4 5 6 7 8 9 | |_______________________________________| | | | VIN GND NC NC VOUT NC | |_______________________________________| ```

Functional Features

• Low dropout voltage: The LT3028IDHC#TRPBF provides a low dropout voltage of only 300mV at 500mA load current, ensuring efficient power conversion.
• Wide input voltage range: It can accept input voltages ranging from 1.8V to 20V, making it suitable for a variety of applications.
• Adjustable output voltage: The output voltage can be adjusted from 0.6V to 18V, providing flexibility in different circuit requirements.
• Low quiescent current: With a quiescent current of only 30µA, the LT3028IDHC#TRPBF minimizes power consumption when the load is light.
• Excellent line and load regulation: It offers excellent line and load regulation, ensuring stable output voltage even with varying input voltage and load conditions.
• High ripple rejection: The LT3028IDHC#TRPBF provides a high ripple rejection of 70dB at 1kHz, reducing noise and improving overall performance.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Low quiescent current minimizes power consumption. - Excellent line and load regulation ensures stable output voltage. - High ripple rejection reduces noise.

Disadvantages: - Limited output current of up to 500mA may not be sufficient for high-power applications. - DFN-12 package may require careful handling during assembly.

Working Principles

The LT3028IDHC#TRPBF is a low dropout linear regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass element.

Detailed Application Field Plans

The LT3028IDHC#TRPBF is suitable for various applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial control systems - Automotive electronics - Telecommunications equipment - Medical devices

Detailed and Complete Alternative Models

• LT3028IDD#PBF: DFN-12 package, 2500 units per reel
• LT3028IDHC#PBF: DFN-12 package, high temperature grade, 2500 units per reel
• LT3028IDHC#TRMPBF: DFN-12 package, tape & reel, moisture sensitivity level 3, 2500 units per reel
• LT3028IDHC#TRMPBF: DFN-12 package, tape & reel, moisture sensitivity level 4, 2500 units per reel

These alternative models offer similar functionality and characteristics to the LT3028IDHC#TRPBF, providing options for different application requirements.

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