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TPS53353DQPR

15A step-down converter, 1.5-15V input, 500kHz, VQFN-22

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Manufacturer Part：

TPS53353DQPR

Package：

VQFN-22 (5x6mm)

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Description

Product Overview

The TPS53353DQPR from TI is a 15A D-CAP+ step-down converter with 1.5-15V input, 500kHz switching, and integrated MOSFETs in VQFN-22 for server and telecom power.

Key Specifications

Package VQFN-22 (5x6mm)

Features

  • See datasheet for complete specifications
  • Industry-standard package

Applications

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management

The TPS53353DQPR from TI is a 15A D-CAP+ step-down converter with 1.5-15V input, 500kHz switching, and integrated MOSFETs in VQFN-22 for server and telecom power.

The TPS53353DQPR is a 15A synchronous step-down converter with integrated 8mOhm/5mOhm MOSFETs in VQFN-22 (3.5×3.5mm). It uses D-CAP+ (Direct Capacitor-Available Plus) control mode, a proprietary constant-on-time architecture with adaptive voltage positioning. Unlike voltage-mode or current-mode control, D-CAP+ does not require external compensation for most output capacitor combinations. The on-time is modulated inversely with VIN to maintain pseudo-constant frequency. The error amplifier compares FB against a 0.6V reference and adjusts the on-time to regulate output voltage. The low-side MOSFET operates synchronously during the off-time, eliminating diode conduction losses and improving efficiency to 95%. The device supports 500kHz or 300kHz switching. Over-current protection monitors the low-side MOSFET voltage drop for valley current limiting.

Pin Name Type Function
1-3 PGND Power Power ground for low-side FET
4-6 SW Output Switching node (inductor connection)
7 VBST Analog Bootstrap for high-side driver
8 VIN Power Input Input supply (1.5-15V)
9 COMP Analog Error amplifier output/compensation
10 FB Input Feedback (0.6V reference)
11 SS Analog Soft-start capacitor
12 PWGD Output Power good indicator
13 EN Input Enable (active high)
14-22 AGND/PAD Power Analog ground and thermal pad
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management
    • Manufacturer Part Number Package Notes
    Texas Instruments TPS53355DQPR VQFN-22 30A version, same family
    Analog Devices LTC3616EUDD QFN-24 6A, 4-36V, polyphase
    Infineon IR3899MTRPBF PQFN-4×5 8A, 4.5-14V, integrated
    Texas Instruments TPS54560BDDAR HSOIC-8 5A, 4.5-60V buck
    Monolithic Power MP8759GD-Z QFN-22 5A, 5-36V
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    Quality Assurance

    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.

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    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.

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

     

    Shipping & Payment

    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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    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.
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    Contact Information

    Email: info@materialparts.com

    Tel / WhatsApp: +86 13760382860

    Service & Packaging

    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.

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    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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    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.

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    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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