Enterprise SSD Backup Power Reference Design

(ACTIVE) PMP30046

Description & Features

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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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Bill of Materials (BOM)

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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  100V N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy Not Available
LM43603  3.5V to 36V, 3A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS25940-Q1  2.7V-18V Automotive Current-Limited Load Switch with Current Sense & Short-to-Battery Protection  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3700  TPS3700 18V Window Supervisor with Internal Ref for Overvoltage and Undervoltage Detection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS61170-Q1  Automotive 3V to 18V Wide Input Range, 1.2A Boost Converter in 2x2mm QFN Package  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS62130  3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package  Step-down (buck)  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 VSON (DSU)| 16 Download
Download Download
TPS25940-Q1 Download
TPS3700 Download
Download Download
TPS61170-Q1 Download Download
TPS62130 Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 790 05 Oct 2016 27
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 55 05 Oct 2016 7
ZIP 849 05 Oct 2016 8
PDF 974 05 Oct 2016 9
PDF 169 05 Oct 2016 8
PDF 199 05 Oct 2016 10
PDF 422 05 Oct 2016 132

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