LTC3729EUH#TRPBF

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LTC3729EUH#TRPBF

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IC REG CTRLR BUCK 32QFN

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規格

屬性 價值
Series PolyPhase®
Part Status Active
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4V ~ 36V
Frequency - Switching 260kHz ~ 550kHz
Duty Cycle (Max) 99.5%
Synchronous Rectifier Yes
Clock Sync No
Control Features Current Limit, Enable, Phase Control, Power Good, Soft Start
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (5x5)
Base Product Number LTC3729

概述

Description

The LTC3729EUH#TRPBF is a high-performance dual synchronous step-down (buck) regulator from Analog Devices, specifically designed for applications that require high efficiency and precise voltage regulation. It features integrated MOSFETs, enabling it to deliver up to 20A output current while maintaining low power dissipation.
Key specifications include a wide input voltage range (typically 4.5V to 60V) and adjustable output voltages configured via external resistors. The device operates with high efficiency, often exceeding 90%, which is crucial for battery-powered and thermal-sensitive applications.
Additional features include current mode control for improved transient response, programmable switching frequency, and built-in protection mechanisms such as over-voltage, under-voltage lockout, and thermal shutdown.
Typical applications include power supplies for communications, industrial equipment, and automotive systems. The LTC3729EUH#TRPBF comes in a thermally enhanced package, facilitating effective heat dissipation and reliability in demanding environments.

Equivalent

The LTC3729EUH#TRPBF is a dual-channel synchronous step-down controller. Equivalent products include the LM2576, TPS5430, and LT8610. Other alternatives are the MAX8684 and ISL6325, which offer similar features like high efficiency and adjustable output voltage. Always verify specifications to ensure compatibility with your application.

Features

The LTC3729EUH#TRPBF is a high-performance, dual-output synchronous step-down regulator controller designed for flexible power management solutions. Key features include:
1. Dual Output: Capable of driving two synchronous step-down converters, allowing for an efficient power supply for multiple components.
2. Wide Input Voltage Range: Operates from 4.5V to 60V, suitable for various applications.
3. High Efficiency: Supports high efficiency across a wide load range, minimizing heat dissipation.
4. Current-Mode Control: Provides fast transient response and enhances stability.
5. Programmable Switching Frequency: Adjustable frequency from 250kHz to 1MHz for optimal performance and size.
6. Integrated Bootstrap Diode: Reduces external component count and simplifies design.
7. Power Good Indicator: Monitors output voltages with a power-good flag for system reliability.
8. Thermal Shutdown and Overcurrent Protection: Enhances safety and reliability.
These features make the LTC3729EUH#TRPBF suitable for various applications, including automotive, industrial, and telecommunications.

Pinout

The LTC3729EUH#TRPBF is a dual-channel gate driver IC with a total of 20 pins. Its primary functions include driving the high-side and low-side MOSFETs in synchronous step-down converters, providing precise timing control and high-speed switching capabilities. Key features include an internal bootstrap switch for high-side drive, protection against shoot-through, and adjustable dead time. The device operates with a wide input voltage range, making it suitable for various applications in power management.

Manufacturer

The LTC3729EUH#TRPBF is manufactured by Analog Devices, Inc. (ADI), a prominent American multinational semiconductor company. Established in 1965, Analog Devices specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company primarily serves various markets, including automotive, communications, industrial automation, healthcare, and consumer electronics.
The LTC3729 is specifically a power management IC that provides dual-channel synchronous step-down (buck) regulation, designed for applications requiring efficient and high-performance power supply solutions. Analog Devices is known for its commitment to innovation and quality, focusing on delivering advanced technologies that address complex signal processing needs. With a strong presence in the semiconductor industry, ADI is recognized for its expertise in creating products that enable precision and reliability in electronic systems.

Application

The LTC3729EUH#TRPBF is a high-performance dual-phase synchronous step-down controller primarily used in DC-DC power supply applications. Key application areas include:
1. Telecommunications - For powering high-performance servers and network equipment.
2. Industrial Equipment - Providing regulated power to automated systems and control circuits.
3. Computing - Used in CPUs and GPUs for efficient voltage regulation.
4. Consumer Electronics - Powering devices requiring stable and efficient power supplies.
5. LED Drivers - Managing power for LED lighting systems.
Its features support high efficiency, low output ripple, and precise voltage regulation across diverse applications.

Package

The LTC3729EUH#TRPBF is packaged in a 28-lead HTSSOP (Thin Shrink Small Outline Package) with an exposed pad for enhanced thermal performance.

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