TITPS54340DDAR
Overview
The TPS54340DDAR is a 42V, 3.5A, step-down regulator with an integrated high-side MOSFET designed for high-efficiency power conversion. It features an adjustable switching frequency from 100kHz to 2.5MHz and employs Pulse Skipping Eco-mode to maintain high efficiency during light-load operations. The device is housed in an 8-pin PowerSOIC package with an exposed thermal pad for improved heat dissipation.
Why Choose This Part
The component offers high flexibility with its wide switching frequency range and synchronization capability, allowing for optimized inductor sizing and EMI management. Its 146 uA operating quiescent current and 1 uA shutdown current make it excellent for power-sensitive designs. Integrated safety features like cycle-by-cycle current limiting and frequency foldback protect the device during fault conditions.
Applications
Key Specifications
Getting Started
Designers should use the WEBENCH Power Designer tool to calculate external component values for the feedback network and LC filter. Ensure the exposed thermal pad is soldered to a large ground plane to manage the heat generated by the 3.5A output. An external compensation network is required to stabilize the current mode control loop for specific output requirements.
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