LM5164QDDARQ1: LM5164, Converter, 48V, 100V Input

The LM5164QDDARQ1 synchronous buck converter is designed to regulate over a wide range of input voltages, reducing the requirement for external surge suppression components. A minimum adjustable on-time of 50 ns allows for significant step-down conversion ratios, allowing direct step-down from a 48-V nominal input to low-voltage rails, reducing system complexity and solution cost. The LM5164QDDARQ1 works at approximately 100 percent duty cycle with input voltage dips as low as 6 V, making it a great choice for wide input supply range industrial and large cell count battery pack applications.

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3D Model

• Designed for reliable and rugged applications

– Wide input voltage range of 6 V to 100 V

– Junction temperature range: –40°C to +150°C

– Fixed 3-ms internal soft-start timer

– Peak and valley current-limit protection

– Input UVLO and thermal shutdown protection

• Suited for scalable Industrial power supplies and battery packs

– Low minimum on- and off-times of 50 ns

– Adjustable switching frequency up to 1 MHz

– Diode emulation for high light-load efficiency

– 10.5-µA no-load input quiescent current

– 3-µA shutdown quiescent current

– Optimized for CISPR 32 EMI standard

• Integration reduces solution size and cost

– COT mode control architecture

– Integrated 0.725-Ω NFET buck switch supports wide duty-cycle range

– Integrated 0.34-Ω NFET synchronous rectifier

eliminates external Schottky diode

– 1.2-V internal voltage reference

– No loop compensation components

– Internal VCC bias regulator and boot diode

– Open-drain power good indicator

– 8-Pin SOIC package with PowerPAD™

• Create a custom design using WEBENCH® power designer

• Reduced board space: The new device's thermally efficient, small-form integrated circuit (SOIC) PowerPADTM packaging is 5 mm x 6 mm, which is 30% smaller than competitive offerings. Designers can use the LM5164QDDARQ1 to develop a complete power supply design with a footprint of 105 mm2, which is more than 10% smaller than competitive products.

• High light load efficiency: The LM5164QDDARQ1 has a very low typical standby static current of 10-A. When compared to rival methods, this delivers a 10% light-load efficiency, a 24 V to 5 V conversion at 1-mA loads, and extends battery life.

• Simple and cost-effective design: A standard 8-pin SOIC box, few external components, and WEBENCH® Power Designer simplify and decrease design costs.

NA LM5164QDDARQ1 technical specifications, attributes, parameters and parts with similar specifications to NA LM5164QDDARQ1.

• Appliances, power and garden tools

• High-cell-count battery packs (E-Bike, E-Scooter)

• Motor drives, drones, telecom

LM5164QDDARQ1 Typical Application Circuit

Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.