LTC3728EG#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Current mode control - Synchronous rectification - Programmable soft-start - Overvoltage protection - Undervoltage lockout - Thermal shutdown

Package: 20-Lead SSOP

Essence: The LTC3728EG#PBF is a high-performance synchronous step-down switching regulator. It is designed to provide efficient power management in various applications.

Packaging/Quantity: The LTC3728EG#PBF is available in a 20-Lead SSOP package. It is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 4V to 36V
Output Voltage Range: 0.6V to VIN
Maximum Output Current: 10A
Switching Frequency: Up to 2MHz
Efficiency: Up to 95%
Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3728EG#PBF has the following pin configuration:

VIN: Input Voltage
GND: Ground
FB: Feedback Voltage
SYNC: Synchronization Input
VCC: Supply Voltage
SS/TR: Soft-Start/Tracking
PGND: Power Ground
SW: Switch Node
SW: Switch Node
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage
VCC: Supply Voltage

Functional Features

High efficiency synchronous step-down switching regulator
Current mode control for improved transient response
Programmable soft-start and tracking for controlled startup
Overvoltage protection to safeguard the load
Undervoltage lockout for reliable operation
Thermal shutdown to prevent overheating

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power dissipation - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Synchronous rectification improves overall performance - Programmable soft-start ensures smooth startup - Overvoltage protection enhances system reliability - Undervoltage lockout prevents improper operation - Thermal shutdown protects against overheating

Disadvantages: - Limited maximum output current of 10A - Higher switching frequency may require additional filtering components

Working Principles

The LTC3728EG#PBF operates as a synchronous step-down switching regulator. It converts a higher input voltage to a lower output voltage efficiently. The IC utilizes current mode control to regulate the output voltage and improve transient response. Synchronous rectification minimizes power losses, resulting in higher efficiency. The device also incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe and reliable operation.

Application Field Plans

The LTC3728EG#PBF is suitable for a wide range of applications, including but not limited to: - Industrial equipment - Telecommunications systems - Automotive electronics - Power supplies - Battery-powered devices - LED lighting

Alternative Models

Some alternative models that offer similar functionality to the LTC3728EG#PBF include: - LT8610AB#PBF - LT8611AB#PBF - LT8612AB#PBF - LT8613AB#PBF - LT8614AB#PBF

These models can be considered as alternatives based on specific requirements and design considerations.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC3728EG#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC3728EG#PBF in technical solutions:

Q: What is LTC3728EG#PBF? A: LTC3728EG#PBF is a high-performance synchronous step-down DC/DC controller IC manufactured by Linear Technology (now part of Analog Devices).
Q: What is the input voltage range supported by LTC3728EG#PBF? A: LTC3728EG#PBF supports an input voltage range from 4V to 38V.
Q: What is the output voltage range that can be achieved using LTC3728EG#PBF? A: The output voltage range can be set between 0.6V and VIN, where VIN is the input voltage.
Q: Can LTC3728EG#PBF operate in a wide temperature range? A: Yes, LTC3728EG#PBF is designed to operate in a temperature range of -40°C to 125°C.
Q: Does LTC3728EG#PBF support synchronous rectification? A: Yes, LTC3728EG#PBF supports synchronous rectification for improved efficiency.
Q: What is the maximum switching frequency of LTC3728EG#PBF? A: The maximum switching frequency of LTC3728EG#PBF is 550kHz.
Q: Can LTC3728EG#PBF be used in battery-powered applications? A: Yes, LTC3728EG#PBF can be used in battery-powered applications as it supports low quiescent current operation.
Q: Does LTC3728EG#PBF have built-in protection features? A: Yes, LTC3728EG#PBF includes various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
Q: Can LTC3728EG#PBF be used in parallel to increase output current? A: Yes, LTC3728EG#PBF can be configured in a master-slave configuration to increase the output current capability.
Q: Are there any evaluation boards available for LTC3728EG#PBF? A: Yes, Analog Devices provides evaluation boards for LTC3728EG#PBF, which can help in testing and prototyping applications.

Please note that the answers provided here are general and may vary depending on the specific application and design considerations. It is always recommended to refer to the datasheet and application notes for detailed information and guidelines.