LTC3727EG

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LTC3727EG

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仕様

Package / Case SSOP-28
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Series LTC3727
Brand Analog Devices
Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Shipping Restrictions Mouser does not presently sell this product in your region.
Operating Supply Current 670 uA
Topology Buck
Output Voltage 800 mV to 14 V
Output Current 25 A
Number of Outputs 2 Output
Input Voltage - Min 4 V
Input Voltage - Max 36 V
Switching Frequency 550 kHz
Height 2 mm

概要

Description

The LTC3727EG is a dual, high-performance synchronous step-down switching regulator controller. Designed by Linear Technology (now part of Analog Devices), it is intended for high-efficiency power conversion applications. The device operates at a constant frequency with two phases shifted by 180 degrees, which reduces the input capacitance and electromagnetic interference. It offers a wide input voltage range and can deliver high output currents, making it suitable for powering processors, ASICs, and other high-demand digital circuits.
Key features of the LTC3727EG include its current mode control for fast transient response and cycle-by-cycle current limit protection. The controller supports Burst Mode operation for increased efficiency at light loads and can achieve high efficiencies across a wide range of power levels. It also includes programmable output voltage and an adjustable soft-start feature to limit inrush current during startup. Other features include short-circuit protection, thermal shutdown, and overvoltage protection. With its robust performance and flexibility, the LTC3727EG is often utilized in telecommunications, networking equipment, and other applications requiring reliable power management solutions.

Features

The LTC3727EG is a dual, high-efficiency, current mode step-down switching regulator controller. It is designed to drive N-channel MOSFETs in a synchronous buck topology. Key features include:
1. High Efficiency: Optimized for high efficiency, the LTC3727EG can achieve greater than 95% efficiency with its synchronous rectification.
2. Wide Input Voltage Range: It supports a broad input voltage range from 4V to 36V, making it versatile for various applications.
3. High Frequency Operation: The device can operate at selectable frequencies from 125kHz to 500kHz, allowing for compact designs with small inductors and capacitors.
4. Current Mode Control: This feature provides excellent line and load transient response and simplifies compensation.
5. Output Tracking and Sequencing: The LTC3727EG supports tracking and sequencing of multiple output voltages, which is crucial for powering modern multi-voltage systems.
6. Burst Mode Operation: This mode enhances efficiency at light loads by reducing switching frequency.
7. Fault Protection: It includes features like short-circuit protection, overvoltage protection, and thermal shutdown to ensure robust operation.
8. Programmable Soft-Start: This feature reduces inrush current during startup.
These features make the LTC3727EG suitable for a range of applications including telecom, automotive, and distributed power systems.

Package

The LTC3727EG is typically housed in a 28-lead SSOP (Shrink Small-Outline Package) package. This package type is designed to offer a compact form factor suitable for surface mounting on PCBs, providing efficient thermal performance and ease of handling in electronic circuit design.

Pinout

The LTC3727EG is a dual-output, high-efficiency, synchronous step-down switching regulator controller. It is typically used in power management applications. The device comes in a 28-lead SSOP (Shrink Small Outline Package) package.
The pin count for the LTC3727EG is 28 pins. Key functions of this controller include:
1. Dual Outputs: It can control two separate outputs, making it ideal for applications requiring multiple voltage rails.
2. Synchronous Rectification: Enhances efficiency by using MOSFETs for rectification instead of diodes.
3. Current Mode Operation: Provides excellent line and load transient response.
4. High Efficiency: Designed for high-efficiency power conversion.
5. Programmable Operating Frequency: Allows flexibility in design with adjustable switching frequency.
6. Output Voltage Tracking: Facilitates coordinated powering-up of multiple voltage rails.
This device is widely used in applications where space and efficiency are critical, such as in telecom equipment, computing, and industrial systems.

Manufacturer

The LTC3727EG is manufactured by Linear Technology Corporation. Linear Technology is a company known for designing, manufacturing, and marketing a broad line of high-performance analog integrated circuits. Their products are used in various applications including telecommunications, networking products, industrial instrumentation, computers, automotive electronics, factory automation, and more. In 2017, Linear Technology was acquired by Analog Devices, Inc., another major player in the semiconductor industry, which continues to produce and sell Linear Technology's products.

Application

The LTC3727EG is a dual synchronous step-down switching regulator controller. It is typically used in applications requiring efficient power conversion, such as telecommunications, networking equipment, server power supplies, and distributed power systems. The controller is suitable for high-performance, high-current, and low-output voltage applications, providing excellent regulation and transient response. Additionally, it is used in systems where space and power efficiency are crucial, such as portable electronics and industrial control systems.

Equivalent

The LTC3727EG is a dual output, step-down DC/DC controller from Analog Devices. Equivalent products may include the Maxim Integrated MAX17503, Texas Instruments TPS5430, or ON Semiconductor NCP5422, depending on the specific requirements such as voltage, current, and additional features. Always check the datasheets for compatibility in terms of electrical characteristics and pin configurations.

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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