LTC3618IUF

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LTC3618IUF

IC REG CONV DDR 2OUT 24QFN

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規格

Part Status Obsolete
Applications Converter, DDR
Voltage - Input 2.25V ~ 5.5V
Number of Outputs 2
Voltage - Output Adj down to 0.5V
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 24-WFQFN Exposed Pad
Supplier Device Package 24-QFN (4x4)
Base Product Number LTC3618

概述

Description

The LTC3618IUF is a high-efficiency, synchronous step-down DC-DC converter designed for applications requiring compact power management solutions. It operates from a wide input voltage range of 2.8V to 15V and delivers up to 3A of continuous output current. The device features a peak efficiency of up to 95%, making it suitable for battery-powered and portable applications.
Key features include an adjustable output voltage (down to 0.8V), low quiescent current for improved efficiency in low-load conditions, and a built-in compensation network that simplifies design. The LTC3618 also supports various modes, including Burst Mode operation for reduced power consumption during light loads. Its small footprint (3mm x 3mm) and low profile make it ideal for space-constrained designs.
The built-in protection features, such as overcurrent and thermal shutdown, enhance reliability. Overall, the LTC3618IUF is an excellent choice for powering microcontrollers, RF devices, and other digital circuits where compact, efficient power conversion is critical.

Features

The LTC3618IUF is a high-efficiency, synchronous step-down DC-DC converter designed for compact applications. Key features include:
1. Input Voltage Range: Operates from 3V to 15V, accommodating various power sources.
2. Output Voltage: Adjustable output voltage from 0.8V to 5V, supporting a wide range of applications.
3. High Efficiency: Up to 95% efficiency, minimizing heat generation and extending battery life.
4. Output Current: Capable of delivering up to 3A of continuous output current.
5. Low Quiescent Current: Approximately 20µA in sleep mode, ideal for battery-powered devices.
6. Fast Transient Response: Maintains stable output during load transients.
7. Switching Frequency: Configurable from 300kHz to 2.2MHz, allowing flexibility in component selection.
8. Thermal Protection: Integrated thermal shutdown to prevent overheating.
9. Small Package Size: Available in a compact 3mm × 4mm QFN package, suitable for space-constrained designs.
These features make the LTC3618IUF suitable for applications like portable electronics, wireless systems, and automotive devices.

Package

The LTC3618IUF is packaged in a 16-lead 3mm x 3mm LFCSP (Lead Frame Chip Scale Package). This compact package is designed for efficient thermal performance and space-saving in applications.

Pinout

The LTC3618IUF is a highly integrated step-down DC/DC converter with a total pin count of 20.
Key functions of its pins include:
1. Input and Output Pins: VIN (input voltage), VOUT (output voltage), and GND (ground).
2. Control Pins: EN (enable), RUN (run mode), and MODE (selects between PWM and Burst mode).
3. Feedback Pins: VFB (feedback voltage) for regulation.
4. Compensation Pins: COMP (compensation network) to stabilize the control loop.
5. Sensing and Monitoring: SW (switch node), ILIM (current limit), and PG (power good indicator).
6. Configuration Pins: Frequency setting and additional control features.
The LTC3618IUF is designed for high efficiency and low quiescent current, making it suitable for a variety of applications such as battery-powered devices and point-of-load power supplies.

Manufacturer

The LTC3618IUF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company is known for its innovative technologies used in various applications, including communications, industrial automation, automotive, healthcare, and consumer electronics. Analog Devices provides solutions that enable accurate and efficient data conversion and signal processing, making it a key player in the semiconductor industry. The LTC3618IUF is a high-performance synchronous step-down voltage regulator, designed for powering a wide range of devices.

Application

The LTC3618IUF is a high-efficiency, synchronous step-down DC-DC converter used in various applications, including:
1. Telecommunications: Powering networking equipment and base stations.
2. Consumer Electronics: Supplying power to laptops, tablets, and smartphones.
3. Industrial Equipment: Used in automation, robotics, and control systems.
4. Automotive: Providing power for infotainment systems and electronic control units.
5. Medical Devices: Supporting portable and battery-operated medical equipment.
Its versatility and efficiency make it suitable for diverse power management needs.

Equivalent

The LTC3618IUF is a high-efficiency buck converter. Equivalent products include:
1. TI TPS563201 - 3A step-down regulator.
2. MAXIM MAX17500 - 3A synchronous step-down regulator.
3. ON Semiconductor NCP81239 - 4A buck converter.
4. Analog Devices ADP2302 - 2A step-down regulator.
5. Infineon IR35215 - 8A digital PWM controller.
Always check specifications for compatibility with your application's requirements.

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