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Texas Instruments CSD17570Q5B | Demoboard TIDA-01512

PMBus Voltage Regulator Reference Design for NXP QorIQ LS2085A/88A Processors

Overview

TopologyBuck Converter
IC revisionA

Description

TIDA-01512 uses the TPS53681 multiphase controller and CSD95490Q5MC Smart Power Stages to implement a high-performance design suitable for powering NXP QorIQ Communications Processors.The dual outputs of the controller target the 60-ATDC, 1.0-V core rail with a four-phase design and a 30-ATDC, 1.2-V auxilliary rail. Utilizing smart power stages and integrated PMBus™ functionality allows for easy output voltage setting, telemetry of key design parameters, and compensation adjustment.During validation a >50% reduction in output capacitance was seen over NXP 's reference board.

Features

  • Dual Rail 4+2 Design - Targeting LS2085A/88A VDD and GVDD Rails
  • PMBus monitoring of VIN, VOUT, IOUT, PIN, and POUT
  • Dual Rail Temperature Monitoring
  • Peak Efficiencies of 92% and 94% for VDD and GVDD Rails
  • 50% reduction in COUT over NXP Eval Board

Typical applications

  • Small Cell Base Station

Products

Order Code Data­sheet Simu­lation Downloads Product seriesCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
RESR
(mΩ)
ILeak
(µA)
DF
(%)
Ø D
(mm)
L
(mm)
Packaging Samples
875115360004SPEC
7 files WCAP-PSHP Aluminum Polymer Capacitors330 µF 16 2000 -55 °C up to +105 °C 3700 20 528 10 10 8.7 15" Tape & Reel
Order Code Data­sheet Simu­lation
875115360004SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
RESR
(mΩ)
ILeak
(µA)
DF
(%)
Ø D
(mm)
L
(mm)
Packaging Samples