Stackable 18-V input, 35-A PMBus converter delivers industry's highest density
Texas Instruments (TI) introduced the industry's highest-density, 18-V input, 35-A synchronous DC/DC buck converter, which offers full differential remote-voltage sensing and PMBus to support telemetry. TI's TPS546C23
power converter integrates high- and low-side MOSFETs into a small-footprint package that is significantly denser than competitive devices. Designers can stack two converters in parallel to drive loads up to 70 A for processors in space-constrained and power-dense applications in various markets, including wired and wireless communications, enterprise and cloud computing, and data storage systems. For more information, samples and an evaluation module, see www.ti.com/tps546C23-pr
The highly integrated TPS546C23 power converter is 44-percent denser (amperes per square millimeter) than competitive devices. It features 0.5 percent reference-voltage accuracy over temperature and full differential remote-voltage sensing to meet the voltage accuracy requirements of deep sub-micron processors. Current sharing enables the stacking of two converters and high efficiency and excellent thermal performance are delivered via the device's single-pad, stacked die, quad flat no-lead (QFN) package. Read the blog post, "Stack current with PowerStack packages for higher POL."
TI also offers the TPS546C20A PMBus converter that supports pin-strapping for both the output voltage and soft-start time. Get more information on TI's entire portfolio of converters with the PMBus interface.
TPS546C23 key features and benefits
- Integrated low Rdson power MOSFETs support 35 A of continuous output current.
- On-chip PMBus interface and non-volatile memory simplify power-supply design and enable customization.
- Output current, output voltage and internal die temperature telemetry supported via PMBus facilitate active power management. Read the blog post, "PMBus – what is the value anyway?"
- Voltage-control mode with clock frequency synchronization and input feed-forward improves EMI/noise and responds rapidly to input-voltage changes. Frequency synchronization to an external clock eliminates beat noise and reduces electromagnetic interference (EMI).
More details available here.
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