Texas Instruments Evaluation Module for TPS51217 20A Synchronous Step Down Controller with DCAP™ Mode TPS51217EVM-533 TPS51217EVM-533 Scheda Tecnica

The TPS51217EVM-533 evaluation module (EVM) uses the TPS51217, a small-size single buck controller
with adaptive on-time D-CAP™ providing dynamically selectable 0.9-V to 1.2-V output at up to 20 A from
input voltages ranging from 8 V to 20 V.

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Description

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Electrical Performance Specifications

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Schematic

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Test Setup

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Test Procedure

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Performance and Typical Characteristic Curves

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EVM Assembly Drawing and PCB Layouts

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List of Materials

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References

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TPS51217EVM-533 Schematic

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Tip and Barrel Measurement for Output Voltage Ripple

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Recommended Test Set Up

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Efficiency at 0.9-V Output

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Efficiency at 1.2-V Output

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Load Regulation at 0.9-V Output

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Load Regulation at 1.2-V Output

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Line Regulation at 0.9-V Output

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Line Regulation at 1.2-V Output

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Load Transient 0.9-V Output

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Output Ripple at 0.9-V Output

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Output Ripple at 1.2-V Output

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Switching Node Waveform

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Enable Turn-On Waveform at 0.9-V Output

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Enable Turn-Off Waveform at 0.9-V Output

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Pre-Bias Turn-On Waveform at 0.9-V Output

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Output Voltage Step-Down

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Output Voltage Step-Up

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Top Layer Assembly Drawing (Top View)

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Bottom Assembly Drawing (Bottom View)

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Top Copper (Top View)

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Internal Layer 1 (Top View)

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Internal Layer 2 (Top View)

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Bottom Copper (Top View)

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SLUU420 – MAY 2010

Copyright © 2010, Texas Instruments Incorporated