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Enterprise SSD Backup Power Reference Design
PMP30046
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Key Document

Description

The PMP30046 reference design shows a system solution for an enterprise SSD backup power supply. The input voltage of the hotswap controller can be either 5V or 12V. A buck stage converts this input voltage to 3.3V with a maximum load current of 2.5A. The 3.3V are boosted to 28V for charging a backup capacitor. In case of a power fail event another buck stage will supply 5V with a maximum load current of 2.5A to the input rail by using the energy stored in the backup capacitor.

Features
  • Built and tested
  • Small footprint
  • Works with input voltages of 5V and 12V
  • System solution

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP30046.1
(Output Voltage 1)		PMP30046.2
(Output Voltage 2)		PMP30046.3
(Output Voltage 3)		PMP30046.4
(Output Voltage 4)
Vin (Min) (V)5535
Vin (Max) (V)5123.628
Vout (Nom) (V)53.3285
Iout (Max) (A)32.5.072.5
Output Power (W)158.251.9612.5
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDCDC
TopologyHot SwapBuck- SynchronousBuck- Non SyncBuck- Synchronous

TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19537Q3  100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 14.5 mOhm  MOSFETs  Sample & Buy Not Available
LM43603  3.5V to 36V, 3A Synchronous Step-Down Voltage Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS25940-Q1  2.7-V to 18-V, 42mΩ, 0.6-5.3A automotive eFuse with current monitor and short to battery protection  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3700  High-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS61170-Q1  3-V to 18-V wide input range, 1.2-A boost converter in 2-mm x 2-mm QFN package, AEC-Q100 qualified  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS62130  3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19537Q3 VSON-CLIP (DQG)| 8 Download Download
LM43603 Download Download
Download Download
TPS25940-Q1 Download
TPS3700 Download
Download Download
TPS61170-Q1 Download Download
TPS62130 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 790 05 Oct 2016
Design files (6)
Title Type Size (KB) Date
ZIP 55 05 Oct 2016
ZIP 849 05 Oct 2016
PDF 974 05 Oct 2016
PDF 169 05 Oct 2016
PDF 199 05 Oct 2016
PDF 422 05 Oct 2016

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