LTC1627IS8

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LTC1627IS8

IC REG BUCK ADJ 500MA 8SO

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  • Mfr.부분 #LTC1627IS8
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사양

Part Status Discontinued at Digi-Key
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 2.65V
Voltage - Input (Max) 8.5V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 8.5V
Current - Output 500mA
Frequency - Switching 35kHz ~ 350kHz
Synchronous Rectifier Yes
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO
Base Product Number LTC1627

개요

Description

The LTC1627IS8 is a high-performance, voltage-mode PWM (Pulse Width Modulation) controller designed for DC-DC converters. It operates over a wide input voltage range, making it suitable for various applications, including battery-powered devices and industrial power supplies. The controller features an adjustable output voltage, enabling flexibility in designing power systems.
Key specifications include a switching frequency range of up to 1 MHz, which allows for smaller inductors and capacitors, improving efficiency and reducing overall system size. The LTC1627IS8 includes built-in features such as soft-start, overvoltage protection, and thermal shutdown to enhance reliability and performance.
Designed for ease of use, the device has a minimal external component count, simplifying the design process. Its dual-loop control architecture helps maintain stable output voltage across varying loads and input conditions. Overall, the LTC1627IS8 is an ideal choice for applications requiring efficient, reliable power management in compact form factors.

Features

The LTC1627IS8 is a high-performance, step-down DC-DC converter designed for a variety of applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various power supply scenarios.
2. High Efficiency: Offers efficiency up to 95%, minimizing heat generation and improving overall system performance.
3. Adjustable Output Voltage: Output voltage can be set from 1.22V to 55V using external resistors, providing flexibility for different applications.
4. Current Mode Control: Ensures stable operation and fast transient response, enhancing performance in dynamic load conditions.
5. Built-in Switching Frequency: Fixed frequency operation at 500kHz reduces component size and simplifies filtering.
6. Low Ripple: Provides low output voltage ripple, beneficial for sensitive applications.
7. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring safe operation.
8. Power Good Indicator: Monitors output voltage and indicates when it's within an acceptable range.
Overall, the LTC1627IS8 is ideal for powering microcontrollers, sensors, and other electronics requiring stable voltage regulation.

Package

The LTC1627IS8 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) format. This type of package is characterized by its small size and surface mount capability, making it suitable for space-constrained applications.

Pinout

The LTC1627IS8 is an integrated circuit from Analog Devices designed for use as a voltage regulator controller. It has an 8-pin configuration. The pin functions are as follows:
1. VIN: Input voltage supply.
2. GND: Ground connection.
3. SW: Switch node for connecting to the inductor.
4. VOUT: Output voltage feedback input.
5. COMP: Compensation for the control loop.
6. ISEN: Current sense input for overcurrent protection.
7. CSN: Current sense negative input.
8. SHDN: Shutdown control pin to enable or disable the device.
The LTC1627 is used primarily in applications requiring high efficiency and precise voltage regulation.

Manufacturer

The LTC1627IS8 is manufactured by Analog Devices, Inc. (ADI), a prominent global semiconductor company. Analog Devices specializes in data conversion, signal processing, and power management solutions. Founded in 1965, the company focuses on high-performance analog, mixed-signal, and digital signal processing (DSP) technologies. ADI serves a diverse range of industries, including automotive, communications, industrial automation, healthcare, and consumer electronics, providing products designed to optimize performance and efficiency in various applications. The LTC1627IS8, specifically, is a high-speed, high-performance voltage regulator controller used in various electronic devices for power management applications.

Application

The LTC1627IS8 is a high-speed, low-noise, voltage-mode synchronous buck converter controller, primarily used in applications such as:
1. Power supplies for FPGAs and ASICs.
2. DC-DC converters in portable devices.
3. Voltage regulation in telecommunications equipment.
4. Industrial automation systems.
5. High-performance computing and server power management.
Its efficiency and performance make it suitable for applications requiring precise voltage regulation and fast transient response.

Equivalent

Equivalent products to the LTC1627IS8 include the LM2576, LM2675, and LM2676 from Texas Instruments, as well as the MAX868 from Maxim Integrated. These alternatives may vary in specifications such as voltage and current ratings, so it's essential to check the specific requirements for your application before substituting.

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