LTC7151SIV#PBF

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LTC7151SIV#PBF

IC REG BUCK ADJ 15A 28LQFN

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사양

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 3.1V
Voltage - Input (Max) 20V
Voltage - Output (Min/Fixed) 0.5V
Voltage - Output (Max) 5.5V
Current - Output 15A
Frequency - Switching 1MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 28-VFQFN Exposed Pad
Supplier Device Package 28-LQFN (5x4)
Base Product Number LTC7151

개요

Description

The LTC7151SIV#PBF is a high-performance, synchronous step-down DC/DC regulator designed by Analog Devices (formerly Linear Technology). It provides a wide input voltage range of 4.5V to 60V and can deliver output currents up to 6A. The device is notable for its high efficiency and fast transient response, making it suitable for industrial, automotive, and telecommunications applications.
Key features include adjustable output voltage, programmable soft-start, and a power good indicator. Its compact package allows for easy integration into space-constrained designs. The LTC7151 also supports a wide range of output voltage programming, enabling it to cater to various load requirements.
The device utilizes a synchronous architecture for reduced power loss and improved efficiency across a broad load range. Protection features such as over-voltage, over-current, and thermal shutdown enhance its reliability. Overall, the LTC7151SIV#PBF is an excellent choice for applications requiring a robust and efficient power supply solution.

Features

The LTC7151SIV#PBF is a high-performance synchronous step-down voltage regulator. Key features include:
1. Wide Input Voltage Range: Supports input voltages from 4.5V to 60V, making it suitable for various applications.
2. Output Voltage Flexibility: Adjustable output voltage from 0.8V to the input voltage with high accuracy.
3. High Efficiency: Achieves up to 95% efficiency, minimizing heat generation and power loss.
4. Fast Transient Response: Provides excellent load step response, improving stability in dynamic loads.
5. Integrated Power Switches: Utilizes internal MOSFETs, reducing component count and PCB space.
6. Current Mode Control: Enhances loop stability and transient response.
7. Short-Circuit Protection: Features output current limiting and thermal shutdown for added reliability.
8. Compact Package: Available in a thermally enhanced 20-lead TSSOP package.
These features make the LTC7151 ideal for automotive, industrial, and telecom applications requiring robust power management.

Package

The LTC7151SIV#PBF is packaged in a 16-lead LQFP (Low-profile Quad Flat Package) with a thermal pad. This package type provides efficient heat dissipation and is suitable for surface mounting in a compact design.

Pinout

The LTC7151SIV#PBF is a high-performance, synchronous step-down DC/DC converter from Analog Devices. It features a total of 16 pins.
Key Functions of the Pins:
1. Power Inputs: Pins for connecting input voltage (VIN).
2. Power Outputs: Pins for delivering regulated output voltage (VOUT).
3. Control Pins: Includes a mode selection pin (MODE) for setting the operation mode (Burst Mode or Continuous Mode).
4. Compensation Pin: For external compensation network (COMP).
5. Feedback Pins: Voltage feedback (VFB) to regulate output voltage.
6. Synchronization Pin: Allows synchronization to an external clock (SYNC).
7. Enable Pin: To enable or disable the device (EN).
8. Switching Frequency Pin: For setting the switching frequency.
9. Ground Pin: Common ground connection.
In summary, this IC is designed for efficient power management and regulation in low-voltage applications, making it suitable for a variety of electronic devices.

Manufacturer

The LTC7151SIV#PBF is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a global company that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, ADI serves various industries including automotive, communications, healthcare, and industrial automation. The company is known for its innovative solutions in signal processing and power management, which are critical for applications requiring precision and reliability.

Application

The LTC7151SIV#PBF is a high-performance, low-dropout linear regulator (LDO) designed for applications requiring low noise and high precision. Key application areas include powering sensitive analog and RF circuits, powering high-speed digital devices, automotive electronics, precision measurement systems, and battery-powered devices. Its features make it suitable for telecommunications, medical devices, and industrial automation where stable voltage and low output noise are critical.

Equivalent

The LTC7151SIV#PBF is a high-performance, step-down voltage regulator. Equivalent products include the Texas Instruments TPS563202, Analog Devices LT8640, and ON Semiconductor NCP81239. These alternatives offer similar features such as adjustable output voltage, high efficiency, and wide input voltage ranges. Always verify specifications to ensure compatibility with your application.

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