LM5575MHX

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LM5575MHX

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IC REG BUCK ADJ 1.5A 16HTSSOP

  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #LM5575MHX

  • データシート LM5575MHX DataSheet

  • パッケージ HTSSOP-16

  • 在庫状況2863

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仕様

属性
Package Tape & Reel (TR),Cut Tape (CT)
Series SIMPLE SWITCHER®
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 6V
Voltage-Input(Max) 75V
Voltage-Output(Min/Fixed) 1.225V
Voltage-Output(Max) 70V
Current-Output 1.5A
Frequency-Switching 50kHz ~ 500kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 16-PowerTSSOP (0.173, 4.40mm Width)

概要

Description

The LM5575MHX is a high-voltage, monolithic switching regulator designed by Texas Instruments, optimized for a wide range of industrial applications. It belongs to the LM5575 series, which is known for its robust power management capabilities. The regulator can efficiently step down input voltages ranging from 6V to 75V to deliver an adjustable output voltage as low as 1.225V. It supports output currents up to 1.5A.
Key features of the LM5575MHX include a high switching frequency of up to 500 kHz, which allows for the use of smaller external components and a more compact design. It also incorporates a Constant On-Time (COT) control method, providing excellent transient response and ease of loop compensation. The device has several protection features including thermal shutdown, current limiting, and output over-voltage protection, ensuring reliable operation under various conditions.
The LM5575MHX is housed in a thermally enhanced, 20-pin HTSSOP package, offering efficient heat dissipation. This makes it suitable for a variety of applications, including telecommunications, automotive, and industrial power supplies.

Equivalent

The LM5575MHX is a buck switching regulator IC. Equivalent products might include switching regulators with similar specifications, such as the LM5575 from different packaging or manufacturers. Other potential equivalents could be the LM2675 from Texas Instruments (though with lower specs) or offerings from other manufacturers like the LT8610 from Analog Devices or the TPS54331 from Texas Instruments. Always check the datasheets to ensure compatibility with your specific application requirements.

Features

The LM5575MHX is a high-performance, step-down switching regulator from Texas Instruments. It is designed to operate with an input voltage range of 6V to 75V, making it suitable for a variety of industrial and automotive applications. The device can deliver an output current of up to 1.5A with adjustable output voltage. Key features include a high efficiency over a wide load range due to its Pulse Width Modulation (PWM) control, and a switching frequency adjustable from 50 kHz to 500 kHz for optimization between efficiency and component size. It also includes an internal compensation network, which simplifies the design process, and a current-mode control for fast transient response and easy loop compensation. Additional features are the soft-start capability, thermal shutdown, and under-voltage lockout for protection. The LM5575MHX comes in a thermally enhanced HTSSOP package, which aids in heat dissipation, allowing for reliable performance in high-power applications.

Pinout

The LM5575MHX is a wide input voltage range buck switching regulator. It is designed for step-down applications and is capable of delivering up to 1.5A of output current. The specific package for the LM5575MHX is the TSSOP (Thin Shrink Small Outline Package) with an exposed pad for better thermal performance.
The pin count for the LM5575MHX in the TSSOP package is typically 16 pins. The functions of these pins generally include input voltage (VIN), output voltage (VOUT), feedback (FB), ground (GND), and various control and compensation pins like enable (EN), soft-start (SS), and others necessary for regulation and performance tuning. The exact pin functions should be verified against the datasheet from the manufacturer to ensure accuracy, as they may vary slightly depending on specific implementations or revisions.
For precise pin configurations and functionalities, consulting the datasheet is essential, as it provides detailed circuit connections, operational limits, and additional component requirements for proper regulator operation.

Manufacturer

The LM5575MHX is manufactured by Texas Instruments, a global semiconductor company. Texas Instruments designs and produces a wide range of semiconductor products including integrated circuits, microcontrollers, and processors. They serve various industries such as automotive, industrial, consumer electronics, and communications. The company is known for its innovation in analog and embedded processing technologies and is one of the largest semiconductor companies in the world.

Application

The LM5575MHX is a step-down switching voltage regulator designed for various applications requiring efficient power conversion. Key areas include:
1. Telecommunications: Used in network equipment for stable power supply.
2. Industrial Automation: Provides reliable power in control systems and machinery.
3. Automotive Electronics: Powers infotainment and control modules.
4. Distributed Power Systems: Converts high-input voltage for local power distribution.
5. Embedded Systems: Supplies power to microcontrollers and peripherals.
6. Consumer Electronics: Powers devices like set-top boxes and gaming consoles.
Its wide input voltage range and high efficiency make it ideal for applications requiring robust power management in compact spaces.

Package

The LM5575MHX is a switching regulator IC available in a thermally enhanced HTSSOP (Heat-Sink Thin Shrink Small Outline Package) with 16 pins, denoted by the "MH" suffix in its part number. It is designed for high-efficiency power supply applications and features an exposed pad to improve thermal performance.

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