الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > محولات التيار المستمر-التناوب المستمر > LM5160XDNTT

LM5160XDNTT

65V 2A sync buck/Fly-Buck, integrated FETs, COT control, no compensation, 50k-1MHz, 4x4mm WSON-12

6700

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جزء الشركة المصنعة ： جزء الشركة المصنعة

LM5160XDNTT

الحزمة ： الحزمة

12-pin WSON (4.0 x 4.0 x 0.8mm)

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
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الخدمة والتغليف
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الوصف

نظرة عامة على المنتج

The LM5160XDNTT is a 65V, 2A synchronous step-down (buck) and Fly-Buck converter from Texas Instruments with integrated high-side and low-side MOSFETs. Using adaptive constant on-time (COT) control, it requires no external loop compensation and delivers fast transient response. The 4.5V to 65V input range, 2A output, and selectable DCM/FPWM modes make it ideal for industrial, telecom, and isolated Fly-Buck power supply designs in a compact 12-pin WSON (4x4mm) package.

المواصفات الرئيسية

الطوبولوجيا Synchronous Buck / Fly-Buck
جهد الإدخال 4.5V to 65V
جهد الخرج 2V to 60V (adjustable)
تيار الإخراج 2A maximum
Switch Current Limit 2.5A (typical)
تردد التحويل 50kHz to 1MHz (resistor programmable)
وضع التحكم Adaptive Constant On-Time (COT)
Duty Cycle Up to 92%
Feedback Voltage Accuracy ±1% over temperature
Integrated MOSFETs High-side + Low-side (synchronous)
External Schottky Required No
FPWM/DCM Selection Yes (pin selectable)
Soft Start Programmable (external capacitor)
UVLO Adjustable with hysteresis
الحزمة 12-pin WSON (4 x 4mm)
درجة حرارة التشغيل -40 درجة مئوية إلى +125 درجة مئوية

الميزات

  • 4.5V to 65V wide input voltage range
  • Integrated high-side and low-side MOSFETs — no external Schottky
  • 2A maximum load current with 2.5A current limit
  • Adaptive COT control — no external loop compensation needed
  • Fast transient response with high step-down ratios
  • Selectable forced PWM (FPWM) or DCM operation
  • FPWM mode supports multi-output Fly-Buck isolated topologies
  • Resistor-adjustable switching frequency up to 1MHz
  • Programmable soft start with pre-biased startup
  • ±1% feedback voltage reference accuracy
  • Adjustable input UVLO with hysteresis
  • Thermal shutdown with hysteresis
  • Peak and valley current limit protection

التطبيقات

  • Industrial PLC and I/O module power
  • IGBT gate driver isolated bias supplies (Fly-Buck)
  • Telecom primary and secondary side power
  • Smart meter power line communication supplies
  • Low-power isolated DC/DC converters
  • Automotive and battery-powered systems

The LM5160XDNTT is a 65V, 2A synchronous buck/Fly-Buck DC/DC converter from Texas Instruments with both high-side and low-side MOSFETs integrated on-chip, eliminating the need for an external Schottky diode. The adaptive constant on-time (COT) control scheme requires no external loop compensation while delivering fast transient response and supporting high step-down ratios. The switching frequency is resistor-programmable from 50kHz to 1MHz. The FPWM pin selects between forced continuous conduction mode (for multi-output Fly-Buck isolated topologies) and DCM mode (for high light-load efficiency). The ±1% feedback reference ensures tight output regulation over the full -40°C to +125°C temperature range. Protection features include peak/valley current limiting, adjustable UVLO, and thermal shutdown.

The LM5160 uses an adaptive constant on-time (COT) control scheme. When the FB pin voltage falls below the reference, the high-side MOSFET turns on for a pre-calculated on-time that is inversely proportional to VIN, resulting in a nearly constant switching frequency. After the on-time, the high-side FET turns off and the low-side synchronous FET turns on until the inductor current decays to the valley current limit threshold or the FB voltage rises above the reference. A transconductance error amplifier minimizes the steady-state DC error between the average FB voltage and the internal reference, providing ±1% regulation accuracy without the Type-II/III compensation networks required by voltage-mode controllers. In FPWM mode, the low-side FET is kept on even at zero load (allowing negative inductor current), which is essential for Fly-Buck topologies where the coupled inductor secondary must always have a well-defined magnetizing current waveform. In DCM mode, the low-side FET turns off when the inductor current reaches zero, preventing negative current and improving light-load efficiency.

دبوس الاسم الوصف
1 VIN Input supply (4.5V to 65V)
2 EN/UVLO Enable / UVLO adjust (external resistor divider)
3 RON On-time programming resistor (to VIN)
4 FB Feedback voltage (connect to output divider)
5 VCC Internal 5V LDO output (bypass with cap)
6 س س Soft start programming (external cap)
7 FPWM Mode select: high=FPWM, float/low=DCM
8 GND Signal ground
9 SW Switch node (connect to inductor)
10 BOOT Bootstrap cap (to SW)
11 PGND Power ground
12 PGND Power ground
الوسادة PGND Exposed thermal pad (connect to GND plane)
  • Isolated IGBT Gate Driver Bias (Fly-Buck): Use the LM5160 in Fly-Buck topology to generate +15V/-5V isolated bias supplies for IGBT gate drivers. The 65V input accepts the DC bus voltage directly. A coupled inductor provides isolation while the FPWM mode ensures continuous magnetizing current for regulated isolated outputs. No optocoupler is needed since the primary-side output regulates the isolated secondary.
  • Industrial PLC I/O Module Power: Convert 24V bus to 5V/2A for a PLC analog I/O module. The COT control’s fast transient response handles the I/O module’s pulsed current loads without large output capacitors. The 1MHz switching frequency allows a small 4.7µH inductor, minimizing module height. The ±1% output accuracy meets PLC voltage regulation requirements.
  • Telecom 48V to 12V Intermediate Bus: Convert a 48V telecom bus (36V-72V range) to 12V intermediate bus at up to 2A. The 65V maximum input accommodates the 72V peak. In DCM mode, efficiency at light load exceeds 85%, reducing power waste in standby. The integrated MOSFETs simplify the BOM compared to controller+external-FET solutions.
الطراز Vin Max Iout التحكم الفرق الرئيسي
LM5160ADNTT 65V 2A COT External VCC bias option for high Vin efficiency
LM5012 100V 2.5A COT Higher Vin, non-synchronous
LM5161 65V 1A COT Lower current, smaller solution
TPS54160 60V 1.5A Current Mode TI, lower Vin, requires compensation
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ضمان الجودة

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

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We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

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Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

الخدمة والتغليف

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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