LM5085MYE/NOPB
DC/DC Cntrlr Single-OUT Step Down 1000kHz 8-Pin HVSSOP EP T/RLM5085MYE/NOPB
DC/DC Cntrlr Single-OUT Step Down 1000kHz 8-Pin HVSSOP EP T/R
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Manufacturer Part # : LM5085MYE/NOPB
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Package/Case: HVSSOP-8
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Brand: Texas Instruments
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Product Categories : DC DC Switching Controllers
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Service & Packaging
Service & Packaging
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LM5085MYE/NOPB 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!
Details
With a seamless blend of cutting-edge features and robust design, the LM5085MYE/NOPB synchronous buck controller stands out as a versatile solution for high-efficiency voltage regulation tasks. Its broad input voltage range of 4.5V to 75V enables adaptability across various sectors, from automotive to industrial applications. The controller's fixed frequency voltage-mode PWM control mechanism ensures precise output regulation and swift response to dynamic load changes. Furthermore, the adjustable switching frequency of up to 1MHz empowers users to optimize efficiency and component size, delivering tailored performance for specific requirements. Featuring a rich array of protective functionalities like overcurrent protection, thermal shutdown, and input undervoltage lockout, the LM5085MYE/NOPB prioritizes system reliability and operational stability. Its integrated high-side and low-side MOSFET drivers simplify design complexities and reduce external component dependencies, offering a streamlined solution for demanding power supply designs
Key Features
- Easier Design Implementation
- Increased Efficiency Margin
- Better Thermal Performance
- Smoother Power Delivery
- Increased Flexibility Options
- Simplified EMI Filtering Requirements
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Vin (min) (V) | 4.5 | Vin (max) (V) | 75 |
Vout (min) (V) | 1.25 | Vout (max) (V) | 75 |
Iout (max) (A) | 10 | Iq (typ) (mA) | 1.3 |
Switching frequency (min) (kHz) | 50 | Switching frequency (max) (kHz) | 1000 |
Features | Adjustable current limit, Enable, Frequency synchronization | Operating temperature range (°C) | -40 to 125 |
Regulated outputs (#) | 1 | Number of phases | 1 |
Rating | Catalog | Control mode | Constant on-time (COT) |
Type | Controller |
FAQs
What is LM5085MYE/NOPB?
The LM5085MYE/NOPB is a high-voltage monolithic buck regulator designed by Texas Instruments. It is specifically designed for high-voltage input step-down applications, making it ideal for industrial and automotive power supplies, as well as distributed power systems.
How Does LM5085MYE/NOPB Work?
The LM5085MYE/NOPB operates as a step-down (buck) regulator, converting a higher input voltage to a lower regulated output voltage. It employs a PWM (Pulse-Width Modulation) architecture to control the output voltage, providing efficient power conversion with high accuracy and stability. The device features a wide input voltage range and high switching frequency, enabling it to address a variety of power supply requirements.
How Many Pins does LM5085MYE/NOPB have and What are the Functions of the Pinout Configuration?
The LM5085MYE/NOPB is housed in a 14-pin HTSSOP (PowerPAD) package. The pinout configuration includes:
- VIN: Input voltage pin.
- PGND: Power ground pin.
- SW: Switching node pin.
- FB: Feedback pin for output voltage regulation.
- RT/CLK: External resistor or clock synchronization pin.
- SS/TR/UVLO: Soft-start, tracking, or undervoltage lockout pin.
- VCC: Supply voltage pin for internal circuitry.
- COMP: Compensation pin for loop stability.
- SS/TR/UVLO: Soft-start, tracking, or undervoltage lockout pin.
- SENSE: Current sense input for overcurrent protection.
What are the Pros and Cons of LM5085MYE/NOPB?
Pros:
- High Voltage Input Range: Capable of handling high input voltages for various industrial and automotive applications.
- Efficiency: Provides efficient power conversion, minimizing power dissipation and maximizing battery life.
- External Synchronization: Allows for synchronization to an external clock, enabling flexible system design.
- Integrated Protections: Includes features such as overcurrent protection and undervoltage lockout for enhanced reliability and safety.
- Compact and Thermally Enhanced Package: The HTSSOP package offers a balance of size and thermal performance.
Cons:
- Complexity: Buck regulator designs may require careful consideration of external components and layout for optimal performance.
- Thermal Management: The high-voltage operation may require attention to thermal management in certain applications.
- External Components: May require additional external components for specific application requirements.
Are There Any Equivalents/Alternatives to LM5085MYE/NOPB for Recommendation?
- The LM5117 from Texas Instruments is a similar high-voltage buck regulator with different feature sets.
- Alternatives to the LM5085MYE/NOPB include the LT8610 and LT8640 from Analog Devices.
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