LTC3704EMS

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LTC3704EMS

Switching Voltage Regulators LTC3704 - Wide Input Range, No RSENSE Positive-to-Negative DC/DC Controller

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Spécifications

Vue d'ensemble

Description

The LTC3704EMS is a high-performance synchronous buck controller designed for step-down voltage regulation applications. It features a wide input voltage range of 4.5V to 60V and can efficiently regulate output voltages as low as 0.8V. The device integrates both control and compensation circuitry, allowing for easy design and implementation of power supply systems.
Key features include adjustable switching frequency, peak current limit, and a built-in soft-start function, which helps manage inrush current during startup. The LTC3704EMS also offers power good indicators, over-voltage protection, and under-voltage lockout to enhance reliability.
This controller is suitable for a variety of applications, including industrial, automotive, and telecom systems, where efficient and reliable power conversion is critical. Its compact design and high efficiency make it an ideal choice for powering microcontrollers, FPGAs, and other digital devices. Overall, the LTC3704EMS is a versatile solution for designers seeking a robust and efficient buck conversion solution.

Features

The LTC3704EMS is a high-performance DC-DC controller designed for step-down (buck) and boost applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power sources.
2. Adjustable Output Voltage: Output voltage can be set from 0.8V to 20V, allowing for flexibility in application requirements.
3. High Efficiency: Achieves efficiencies up to 95%, reducing heat generation and enhancing performance.
4. Integrated Gate Drivers: Includes high-speed gate drivers that support external MOSFETs for improved output power capability.
5. Programmable Switching Frequency: Adjustable frequency from 100kHz to 1MHz helps optimize performance based on application needs.
6. Current Mode Control: Provides fast transient response and improved stability.
7. Overcurrent Protection: Features cycle-by-cycle current limiting to protect against overload conditions.
8. Thermal Shutdown: Offers built-in thermal protection for enhanced reliability.
9. Soft-Start Function: Limits inrush current during startup to prevent stress on components.
These features make the LTC3704EMS suitable for a variety of applications, including industrial, automotive, and telecommunications.

Package

The LTC3704EMS is available in a 16-lead MSOP (Mini Small Outline Package) package type, which is a compact surface-mount package designed for low-profile applications.

Pinout

The LTC3704EMS is a dual-output buck converter controller designed for high-performance DC-DC applications. It has a pin count of 20 pins.
Key functions include:
1. Power Management: It regulates the output voltage efficiently for various loads.
2. Dual Outputs: It supports two separate output voltages, allowing for versatile power supply designs.
3. Synchronous Operation: The controller enables synchronous rectification for improved efficiency.
4. Programmable Switching Frequency: Users can set the switching frequency to optimize performance and minimize noise.
5. Current Limit Protection: It includes features for overcurrent protection to safeguard the components.
6. Phase Interleaving: Supports phase interleaving to reduce input and output ripple currents.
7. Soft-Start Feature: Controls the startup behavior to prevent inrush current.
These features make it suitable for applications such as point-of-load converters, telecommunications, and industrial systems.

Manufacturer

The LTC3704EMS is manufactured by Analog Devices, Inc. (ADI), a prominent American multinational company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, Analog Devices designs and manufactures a wide range of products for various applications, including aerospace, automotive, communications, consumer electronics, industrial automation, and healthcare. The LTC3704EMS is specifically a high-efficiency, step-down (buck) switching regulator designed for power management solutions. ADI is known for its innovative technologies and has a strong reputation in the semiconductor industry, focusing on delivering precision and performance in their products.

Application

The LTC3704EMS is a versatile DC-DC controller primarily used in applications such as portable devices, battery management systems, low-voltage power supplies, and industrial equipment. It efficiently manages power conversion in systems requiring step-down (buck) regulation, enabling improved energy efficiency in automotive, telecommunications, and consumer electronics. Its features support adjustable output voltages and high-frequency operation, making it suitable for compact designs.

Equivalent

Equivalent products to the LTC3704EMS chip include the Texas Instruments TPS40170, ON Semiconductor NCP302155, and the Analog Devices LTC3880. These alternatives offer similar features for voltage regulation and power management applications. Always verify specific requirements, such as input/output voltage, current ratings, and packaging, to ensure compatibility.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

Payment Methods

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2. Carte de crédit/débit

3. Transfert bancaire