LM5085MM

This 8-pin VSSOP packaged device operates at a frequency of 1000kHz, providing efficient power conversion
7,432 Effective Inventory

LM5085MM

Effective Inventory7,432

This 8-pin VSSOP packaged device operates at a frequency of 1000kHz, providing efficient power conversion

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Quality Assurance

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Certification

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Shipping & Payment

Shipping & Payment

About Shipping

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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LM5085MM DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Rapid Quote

Please submit RFQ for LM5085MM or email to us: Email: [email protected], we will contact you in 12 hours.

Details

With the LM5085MM, Texas Instruments has once again proven its commitment to innovation and performance in power management technology. This IC's combination of advanced features, reliable safety mechanisms, and compact packaging solidifies its position as a go-to solution for demanding applications. Whether it's minimizing power losses in automotive electronics or optimizing energy efficiency in industrial settings, the LM5085MM is a trustworthy ally for engineers seeking top-notch power regulation capabilities

Key Features

  • LM5085-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to 125°C Operating Junction Temperature)
  • Wide 4.5-V to 75-V Input Voltage Range
  • Adjustable Current Limit Using RDS(ON) or a Current Sense Resistor
  • Programmable Switching Frequency to 1MHz
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency with Line and Load Variations
  • Adjustable Output Voltage from 1.25 V
  • Precision ±2% Feedback Reference
  • Capable of 100% Duty Cycle Operation
  • Internal Soft-start Timer
  • Integrated High Voltage Bias Regulator
  • Thermal Shutdown
  • Package:
    • HVSSOP-8
    • VSSOP-8
    • WSON-8

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category ! Switching Controllers Number of Outputs 1 Output
Input Voltage 4.5 V to 75 V Output Voltage 1.25 V to 75 V
Output Current ! 1.75 A Minimum Operating Temperature - 40 C
Maximum Operating Temperature ! + 125 C Mounting Style SMD/SMT
Package / Case VSSOP-8 Brand Texas Instruments
Product Type ! Switching Controllers Subcategory PMIC - Power Management ICs
Type Buck Controller Unit Weight 0.001058 oz

Specification Comparison

LM5085MM vs LM5085MME vs LM5085MY LM5085MM vs LM5085MYE vs LM5085MY

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM5085MM PDF Download

FAQs

What is LM5085MM?

The LM5085MM is a high-voltage synchronous buck controller designed by Texas Instruments. It is specifically designed for high efficiency step-down voltage regulation in industrial, automotive, and power supply applications.

How Does LM5085MM Work?

The LM5085MM operates by regulating the output voltage through a synchronous buck switching topology. It controls the duty cycle of the internal power switches to deliver the desired output voltage while maximizing efficiency. The controller offers protection features such as overcurrent protection and thermal shutdown to ensure system reliability.

How Many Pins does LM5085MM have and What are the Functions of the Pinout Configuration?

The LM5085MM is housed in a 16-pin VQFN (Very Thin Quad Flat No-Lead) package. The pinout configuration includes:

  • VIN: Input voltage pin.
  • SW: Switch node connection for the power switches.
  • FB: Feedback pin for output voltage regulation.
  • COMP: Compensation pin for loop stability.
  • PGND, DGND: Power and digital ground pins, respectively.
  • RT/CLK: Timing resistor or external clock input.
  • EN, UVLO: Enable and undervoltage lockout control pins.
  • SS/TR/FREQ: Soft-start, tracking, and frequency setting pins.

What are the Pros and Cons of LM5085MM?

Pros:

  • High Voltage Operation: Suitable for applications requiring high input voltages.
  • High Efficiency: Utilizes synchronous buck topology for improved efficiency.
  • Protection Features: Includes overcurrent protection and thermal shutdown for system reliability.
  • Flexible Control: Offers soft-start, frequency setting, and tracking functions for control flexibility.
  • Compact Package: The VQFN package is space-efficient and thermally enhanced.

Cons:

  • Complexity: Requires careful design considerations for optimal performance.
  • External Components: May need additional external components for specific application requirements.
  • Cost: Higher cost compared to non-synchronous buck controllers.

Are There Any Equivalents/Alternatives to LM5085MM for Recommendation?

  • The LM5116 from Texas Instruments is a similar high-voltage synchronous buck controller with enhanced features.
  • Alternatives to the LM5085MM include the LT8631 from Analog Devices and the MAX17503 from Maxim Integrated.

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