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The TPS543A26TRASR is a high-efficiency 18V, 16A synchronous buck converter with an internally compensated, fixed-frequency Advanced Current Mode (ACM) control architecture that generates output voltages from 0.5V to 7V while operating in FCCM mode for extended periods. The device offers high efficiency and operates at switching frequencies up to 2.2MHz, making it suitable for designs that require a small solution size.

TPS543A26TRASR: 4V to 18V Input, 16A Synchronous SWIFT™ Buck Converter in Thermally Enhanced Package 

Model No.: TPS543A26TRASR 

Package: WQFN-FCRLF-17 

Type: Synchronous Buck Converter 

Additional Features: Includes High-precision voltage reference, two-wire remote sensing, selectable soft-start time, monotonic start-up to pre-biased output, selectable current limit, adjustable UVLO (via EN pin), and full fault protection.

The TPS543A26TRASR is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.

TPS543A26TRASR - Product Features: 

Integrated 6.5mΩ and 2mΩ MOSFETs 

Input voltage range of 4V to 18V 

Fixed-frequency, internally compensated, Advanced Current Mode (ACM) control 

0.5V to 7V output voltage range 

True differential Remote Sensing Amplifiers (RSAs) 

Three optional PWM ramp options to optimise control Three selectable PWM ramp options to optimise control loop performance 

Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz and 2.2MHz 

Synchronised to an external clock 

0.5V with ±0.5% voltage reference accuracy over the full temperature range 

1ms, 2ms, 4ms and 8ms selectable soft-start times 

Monotonically starts up to pre-biased output 

Selectable current Optional current limit supporting 16A and 12A operation 

Enable terminal with adjustable input undervoltage lockout 

Power Normal Output Monitor 

Output overvoltage, output undervoltage, input undervoltage, overcurrent, and over-temperature protection 

-40°C to 150°C operating junction temperature range 

2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitch TPS543A26TRASR - Applications: 

Wireless and wired communications infrastructure equipment 

Optical and fibre optic networks 

Test and measurement 

Medical and healthcare

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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• 5.When can I deliver the goods after placing an order? How long will it take to get there?

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• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.