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TPS54618CQRTERQ1

6 A sync buck, 2.95–6 V, AEC-Q100 Grade 0, integrated FETs, 1 MHz, 20-VQFN, automotive

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Manufacturer Part：

TPS54618CQRTERQ1

Package：

20-VQFN (RTE) — 3.5 x 3.5 mm

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Description

Product Overview

The TPS54618CQRTERQ1 is a 6 A synchronous step-down converter from Texas Instruments qualified to AEC-Q100 for automotive applications. Packaged in a 20-pin VQFN (RTE), it operates from 2.95 V to 6 V input and provides adjustable output down to 0.6 V at 6 A. The device switches at 1 MHz and integrates both high-side and low-side MOSFETs for minimal external component count in automotive power systems.

Key Specifications

Topology 6 A Synchronous Buck (Integrated FETs)
Input Voltage Range 2.95 V to 6 V
Output Current 6 A
Output Voltage 0.6 V to 5.5 V (Adjustable)
Switching Frequency 1 MHz
Efficiency Up to 95%
Package 20-VQFN (RTE) — 3.5 x 3.5 mm
Operating Temperature -40°C to +150°C (Q1)
Qualification AEC-Q100 Grade 0

Features

  • AEC-Q100 Grade 0 qualified for automotive applications up to 150°C TJ
  • Integrated 19 mΩ high-side and 12 mΩ low-side MOSFETs
  • 1 MHz fixed switching frequency
  • D-CAP2 control mode for fast transient response
  • Power good output and programmable UVLO

Applications

  • Automotive infotainment and ADAS power supplies
  • Car battery to point-of-load conversion
  • Automotive processor and FPGA core power
  • Industrial 5 V / 3.3 V power distribution
  • High-current POL regulation in harsh environments

The TPS54618C-Q1 is an automotive-grade 6 A synchronous step-down converter from Texas Instruments, qualified to AEC-Q100 Grade 0 for operation up to 150°C junction temperature. The device integrates both high-side and low-side MOSFETs in a compact 20-VQFN package, minimizing external component count. Using D-CAP2 control mode, the device provides fast transient response with no external compensation components. The 1 MHz switching frequency allows small inductor and capacitor values. Features include power good output, programmable UVLO, pre-bias startup, and comprehensive protection.

The TPS54618C-Q1 uses TI’s D-CAP2 control mode, a proprietary emulated ripple control architecture that provides fast transient response without external compensation. The internal ripple injection network synthesizes the output voltage ripple information, which the PWM comparator uses for regulation. The integrated 19 mΩ high-side PMOS and 12 mΩ low-side NMOS MOSFETs switch at 1 MHz to deliver up to 6 A output current. The error amplifier compares the FB pin voltage against a 0.6 V internal reference. Over-current protection is implemented by sensing the low-side MOSFET voltage during the off-time. The PGOOD pin indicates when the output is within regulation.

Pin Name Type Function
1 BOOT I/O Bootstrap capacitor for high-side drive
2 VIN Input Input supply (2.95–6 V)
3 EN Input Enable / UVLO programming
4 SS I/O Soft-start capacitor
5 COMP I/O External compensation (D-CAP2: cap to GND)
6 FB Input Output voltage feedback (0.6 V ref)
7 PGOOD Output Power good indicator (open drain)
8–12 GND/PGND Power Ground connections
13–16 SW Output Switch node (to inductor)
17 PGND Power Power ground
  • Automotive infotainment head unit 5 V to 1.2 V core power
  • ADAS processor and sensor fusion power supplies
  • Car battery 3.3 V POL regulation in engine compartment
  • Industrial 5 V bus to low-voltage high-current conversion
  • Automotive camera module power supply
Manufacturer Part Number Package Notes
TI TPS54618RTERQ1 20-VQFN Non-C version, same family
TI TPS54560BDDARQ1 8-SO-PowerPAD 5 A, 60 V, automotive buck
TI TPS54540BDDARQ1 8-SO-PowerPAD 5 A, 42 V, automotive buck
Monolithic Power MP8759GH-5-Z QFN-16 9 A, 5 V, sync buck
Infineon TLD5098ELXUMA1 26-TSSOP Automotive buck controller
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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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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.

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Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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4. Professional Reliability Control

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Contact Us

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Email: info@ic-vendor.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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5. Local Pickup in Shenzhen

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Contact Information

Email: info@ic-vendor.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.

1. General Packaging Specifications

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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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@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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