Enterprise SSD Backup Power Reference Design


Design files


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.

  • Built and tested
  • Small footprint
  • Works with input voltages of 5V and 12V
  • System solution
Output voltage options PMP30046.1 PMP30046.2 PMP30046.3 PMP30046.4
Vin (Min) (V) 5 5 3 5
Vin (Max) (V) 5 12 3.6 28
Vout (Nom) (V) 5 3.3 28 5
Iout (Max) (A) 3 2.5 .07 2.5
Output Power (W) 15 8.25 1.96 12.5
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC
Topology Hot Swap Buck- Synchronous Buck- Non Sync Buck- Synchronous
?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM436033.5V to 36V, 3A Synchronous Step-Down Voltage Converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS621303-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS61170-Q13-V to 18-V wide input range, 1.2-A boost converter in 2-mm x 2-mm QFN package, AEC-Q100 qualified

Data sheet: PDF | HTML
N-channel MOSFETs

CSD19537Q3100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 14.5 mOhm

Data sheet: PDF | HTML
Supervisor & reset ICs

TPS3700High-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring

Data sheet: PDF | HTML
eFuses & hot swap controllers

TPS25940-Q12.7-V to 18-V, 42mΩ, 0.6-5.3A automotive eFuse with current monitor and short to battery protection

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report PMP30046 Test Results Oct. 05, 2016

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​