LT1764ET#31PBF

Product Overview

Category: Voltage Regulator
Use: Power management
Characteristics: High performance, low dropout voltage, low quiescent current
Package: TO-220
Essence: Linear regulator
Packaging/Quantity: Tape & Reel, 1000 units per reel

Specifications

Input Voltage Range: 2.5V to 20V
Output Voltage Range: 1.21V to 15V
Dropout Voltage: 300mV at 1A Load Current
Quiescent Current: 50µA
Line Regulation: ±0.02%
Load Regulation: ±0.04%
Ripple Rejection: 75dB
Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1764ET#31PBF has three pins:

VIN (Pin 1): Input voltage pin.
GND (Pin 2): Ground reference pin.
VOUT (Pin 3): Output voltage pin.

Functional Features

Low dropout voltage enables operation with small input-output differentials.
Low quiescent current minimizes power consumption in standby mode.
Excellent line and load regulation ensures stable output voltage.
High ripple rejection reduces noise interference.
Thermal shutdown and current limit protection for enhanced reliability.

Advantages

High performance and accuracy.
Wide input voltage range allows flexibility in various applications.
Low dropout voltage enables efficient power conversion.
Low quiescent current prolongs battery life.
Compact TO-220 package facilitates easy integration.

Disadvantages

Limited maximum output voltage of 15V.
Higher cost compared to switching regulators.
Requires external capacitors for stability.

Working Principles

The LT1764ET#31PBF is a linear regulator that maintains a constant output voltage regardless of input voltage fluctuations. It utilizes a pass transistor to regulate the output voltage by adjusting its resistance based on the feedback received from the output. The dropout voltage is minimized, ensuring efficient power conversion even with small input-output differentials.

Detailed Application Field Plans

The LT1764ET#31PBF finds applications in various fields, including:

Portable Electronics: Powering microcontrollers, sensors, and display modules.
Automotive: Regulating voltage for infotainment systems, lighting, and control units.
Industrial: Providing stable power supply for PLCs, motor drives, and instrumentation.
Telecommunications: Voltage regulation for routers, switches, and base stations.
Renewable Energy: Power management in solar panels and wind turbines.

Detailed and Complete Alternative Models

LT1764AET#31PBF: Similar specifications, but with adjustable output voltage.
LT1964ET#31PBF: Higher maximum output voltage of 20V.
LT1084CT-12#PBF: Lower quiescent current and higher ripple rejection.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT1764ET#31PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT1764ET#31PBF in technical solutions:

Q: What is the LT1764ET#31PBF? A: The LT1764ET#31PBF is a low dropout voltage regulator IC manufactured by Linear Technology (now part of Analog Devices). It is designed to provide a stable output voltage with low dropout voltage.
Q: What is the input voltage range of LT1764ET#31PBF? A: The input voltage range of LT1764ET#31PBF is typically between 2.5V and 20V.
Q: What is the output voltage range of LT1764ET#31PBF? A: The output voltage range of LT1764ET#31PBF is adjustable, but it can be set to a fixed voltage of 3.1V using the #31PBF option.
Q: What is the maximum output current of LT1764ET#31PBF? A: The maximum output current of LT1764ET#31PBF is typically around 3A, depending on the specific model and operating conditions.
Q: What is the dropout voltage of LT1764ET#31PBF? A: The dropout voltage of LT1764ET#31PBF is typically very low, around 300mV at full load.
Q: Can LT1764ET#31PBF handle both positive and negative voltages? A: No, LT1764ET#31PBF is a positive voltage regulator and can only handle positive input and output voltages.
Q: Is LT1764ET#31PBF suitable for battery-powered applications? A: Yes, LT1764ET#31PBF is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Does LT1764ET#31PBF have built-in thermal protection? A: Yes, LT1764ET#31PBF has built-in thermal shutdown protection to prevent overheating and damage.
Q: Can LT1764ET#31PBF be used in automotive applications? A: Yes, LT1764ET#31PBF is suitable for automotive applications as it can operate over a wide temperature range and has good load regulation.
Q: What are some typical applications of LT1764ET#31PBF? A: LT1764ET#31PBF is commonly used in various technical solutions such as power supplies, battery chargers, portable devices, and embedded systems where a stable and regulated voltage is required.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements.