TPS51120EVM-001

TPS51120 Evaluation Module

TPS51120EVM-001

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Overview

The TPS51120EVM-001 evaluation module utilizes the TPS51120 in a high efficiency, dual synchronous buck converter providing 5 V at 6 A and 3.3 V at 6 A from 8 V to 25 V input. The user’s guide describes the TPS51120EVM-001 performance in D-CAP™ mode and RDS(on) current sensing.

The TPS51120 is a highly sophisticated dual current mode synchronous step-down controller. It is a full featured controller designed to run directly off three to four-cell Li-ion battery and provide high power and 5 V and/or 3.3 V standby regulation for all the downstream circuitry in a notebook computer system.

High current, 100 mA, 5 V or 3.3 V on-board linear regulators have glitch-free switch over function to SMPS and can be kept alive independently during standby state. The pseudo-constant frequency adaptive on-time control scheme supports full range of current mode operation including simplified loop compensation, ceramic output capacitors as well as seamless transition to reduced frequency operation at light-load condition. Optional D-CAP™ mode operation optimized for SP-CAP or POSCAP output capacitors allows further reduction of external compensation parts.

Buck controllers (external switch)
TPS51120 4.5-V to 28-V, dual-channel synchronous buck controller with low standby current consumption

 

N-channel MOSFET transistors
CSD17505Q5A 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 3.5 mOhm CSD17522Q5A 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 8.1 mOhm

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Evaluation board

TPS51120EVM-001 – TPS51120 Evaluation Module

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

Technical documentation

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Type Title Date
* User guide High Performance Synchronous Buck EVM Using the TPS51120EVM-001 (Rev. A) Feb. 15, 2006
More literature TPS51120EVM-001 EU Declaration of Conformity (DoC) Jan. 02, 2019
Data sheet TPS51120 Dual, Synchronous Step-Down Controller With 100-mA Standby Regulators for Notebook System Power datasheet (Rev. C) Jan. 29, 2015

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