TPS51125EVM

TPS51125 Evaluation Module

TPS51125EVM

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Overview

The TPS51125 is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5V and 3.3V LDOs and requires few external components. The 270kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter's efficiency. The TPS51125 supports high-efficiency, fast transient response and provides a combined power-good signal. Out-of-Audio™ mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP™ control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5V to 28V and supports output voltages from 2V to 5.5V. TPS51125EVM evaluation module is a high efficiency, dual synchronous buck converter providing 5V at 8A and 3.3V at 8A from 8V to 25V input.

Buck controllers (external switch)
TPS51125 4.5-V to 28-V, dual-channel synchronous buck controller with 100-mA LDOs and Out-of-Audio™

 

N-channel MOSFETs
CSD17307Q5A 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 12.1 mOhm CSD17507Q5A 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 10.8 mOhm

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Evaluation board

TPS51125EVM – TPS51125 Evaluation Module

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Simulation model

TPS51125 Unencrypted PSpice Average Model Package (Rev. B) – SLIM147B.ZIP (73KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* User guide Using the TPS51125 (Rev. A) Jul. 12, 2012
Certificate TPS51125EVM EU Declaration of Conformity (DoC) Jan. 02, 2019
Data sheet TPS51125 Dual-Synchronous, Step-Down Controller With Out-of-Audio™ Operation and 100-mA LDOS for Notebook System Power datasheet (Rev. H) Jan. 05, 2015

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