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TPS51219RTER

Buck Controller, Diff Feedback, 3-28Vin, D-CAP/D-CAP2, QFN-16

8901

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制造商零件：

TPS51219RTER

包装：

WQFN-16 (3.0 x 3.0 x 0.8 mm, 0.5mm pitch)

品牌：
产品类别：
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说明

产品概览

The TPS51219RTER from Texas Instruments is a high-performance synchronous buck controller with differential voltage feedback, 3-28V input, D-CAP/D-CAP2 modes, and 3x3mm QFN-16 package.

主要规格

类型 Synchronous Step-Down Controller with Differential Feedback
Input Voltage (Conversion) 3V to 28V
Supply Voltage (V5) 5V (external)
Output Voltage 0.5V to 2.0V (adjustable); 1.05V/1.0V fixed options
输出电流 0A to 20A+ (external MOSFETs)
控制模式 D-CAP or D-CAP2 (selectable via MODE resistor)
开关频率 300/400/500/670 kHz (mode-dependent)
Current Sensing Low-side RDS(ON) sensing (4700 ppm/C) or external resistor
软启动 1ms internal voltage servo
包装 WQFN-16 (RTE, 3 x 3 mm)
工作温度 -40C to +85C

特点

  • Differential voltage feedback for precision regulation
  • DC compensation for accurate output voltage
  • D-CAP mode (300/400kHz) for fast transient response
  • D-CAP2 mode (500/670kHz) for all-ceramic capacitors
  • Low-side RDS(ON) current sensing with temperature compensation
  • External RSENSE option for accurate current sensing
  • 1ms internal voltage servo soft-start
  • Built-in output discharge
  • Power-good output
  • Integrated boost switch
  • OVP, UVP, OCP, and thermal shutdown (non-latched)
  • Skip-mode at light load for high efficiency

应用

  • Notebook computer VCCIO supplies
  • Point-of-load power for Intel/AMD platforms
  • Low-voltage high-current POL converters
  • DDR memory power rails

The TPS51219RTER from Texas Instruments is a high-performance single synchronous step-down controller with differential voltage feedback in a tiny 3x3mm WQFN-16 package. The device features selectable D-CAP or D-CAP2 control modes via the MODE pin resistor, providing flexibility for applications requiring either fast transient response (D-CAP) or stability with low-ESR ceramic output capacitors (D-CAP2). The differential voltage feedback senses the output voltage directly at the load through dedicated VSNS/GSNS pins, eliminating IR drop errors in high-current PCB traces. The DC compensation feature corrects for the DC offset inherent in D-CAP mode, providing tight output voltage regulation. The conversion input voltage ranges from 3V to 28V, supporting a wide range of bus voltages. The output voltage is adjustable from 0.5V to 2.0V or can be set to 1.05V or 1.0V fixed options via the REFIN pin. Current sensing is implemented through low-side MOSFET RDS(ON) sensing with 4700 ppm/C temperature compensation, or an external current sense resistor for higher accuracy. The device requires an external 5V supply (V5) for the internal circuitry and gate drivers.

The TPS51219RTER uses adaptive on-time control (D-CAP or D-CAP2) to regulate the output voltage. In D-CAP mode, the controller monitors the output voltage ripple through the VSNS/GSNS differential feedback pair. When the output voltage drops below the reference threshold, the controller triggers an on-time pulse whose duration is adaptively calculated from the input and output voltage to maintain the target switching frequency. This architecture provides extremely fast transient response because there is no error amplifier compensation network limiting the control loop bandwidth. In D-CAP2 mode, an internal compensation ramp is added to the feedback signal, allowing stable operation with very low ESR ceramic output capacitors. The DC compensation circuit measures the DC difference between the output voltage and the reference, and adds a correction term to the on-time adjustment, eliminating the DC offset that naturally occurs in ripple-based control. The differential feedback uses dedicated sense lines (VSNS/GSNS) that connect directly at the load point, rejecting common-mode voltage drops in the power delivery path. The low-side RDS(ON) current sensing measures the voltage across the synchronous MOSFET during the off-time, using the 4700 ppm/C temperature coefficient to compensate for RDS(ON) variation with temperature.

针脚 名称 类型 功能
1 V5 电源 5V supply for internal circuits and gate drivers
2 BST 输入/输出 Bootstrap capacitor for high-side driver
3 DH 输出 High-side MOSFET gate drive
4 DL 输出 Low-side MOSFET gate drive
5 PGND 电源 Power ground for gate drivers
6 TRIP 输入 Overcurrent trip level / current sense
7 COMP 输入/输出 DC compensation capacitor
8 MODE 输入 Mode/frequency selection resistor
9 VSNS 输入 Output voltage sense (differential +)
10 GSNS 输入 Output voltage sense return (differential -)
11 REFIN 输入 Reference voltage input (1.05V/1.0V/external)
12 EN 输入 Enable (HIGH=on)
13 PGOOD 输出 Power-good (open-drain)
14 接地 电源 Signal ground
15 VIN 输入 Conversion input voltage (3-28V, sense only)
16 SW 输入/输出 Switch node (bootstrap return)
  • Intel notebook VCCIO 1.05V supply with differential feedback for 20A+ load regulation within 1% at the CPU die
  • 12V to 1.0V POL for FPGA core with D-CAP2 mode and all-ceramic output capacitors at 670kHz
  • 19V to 1.5V DDR3 VDDQ supply with external RSENSE for accurate current reporting and OCP
制造商 部件编号 包装 说明
TI TPS51220ARTER WQFN-16 Dual output version
TI TPS51116 WQFN-20 DDR complete solution with LDO
Monolithic Power MP2853GQET-P QFN-20 Multi-phase, more features
英飞凌 IR3823AMTRPBF PQFN-24 Integrated FET, similar power
TI TPS51216RUKR WQFN-20 DDR VDDQ/VTT/VREF
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质量保证

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.

2. Strict Full-batch Quality Inspection

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.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, 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

 

发货与付款

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.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
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We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • Air Freight: 7 – 12 working days
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

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    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

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

1. One-stop Sourcing & BOM Support

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.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

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.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

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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