Two converters can be stacked, making them ideal for space-constrained applications.

Texas Instruments (TI) (NASDAQ: TXN) today introduced the industry's first 16-V input, 40-A synchronous DC/DC buck converter with frequency synchronization by employing an advanced current-mode (ACM) control topology with built-in compensation.

The TPS543C20 SWIFT converter integrates the latest generation of low-resistance high-side and low-side MOSFETs in a thermally enhanced, small-footprint package, delivering enhanced efficiency. Furthermore, two converters can be stacked side-by-side, enabling them to drive loads up to 80 A for processors in space-constrained and power-intensive applications, including wired and wireless communications, enterprise and cloud computing, and data storage systems.

It also maintains stable input/output voltages over a wide range through its innovative, built-in compensation Advanced Current Mode (ACM) control topology and fast transient response. ACM differs from peak current mode in that it internally generates a ramp waveform while dynamically adjusting the operating switching frequency to maintain stability over a wide range. Therefore, it offers the benefits of both conventional fixed-frequency control for low-noise operation without external compensation and constant on-time (COT) control for fast transient response.

For similar applications requiring 25 A, the pin-compatible TPS543B20 in the PowerStack QFN package is available. Additionally, for applications requiring PMBus, the stackable 35A TPS546C23 SWIFT synchronous buck converter can be used to support telemetry.

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