This small and simple, low-noise inverting power module design (voltage inverter) cleanly supports a –5-V output voltage at up to 1.5 A of current from a 3- to 11.5-V input. Featuring TI’s TPS82130 MicroSiP™ power module step-down converter in an inverting buck-boost topology, the design achieves a power density of 584 mW/mm3 and a solution size of less than 50 mm2, allowing it to power sensitive analog loads in space-constrained, high-temperature communications equipment, such as optical modules. This design also supports many common industrial equipment, including those that require a 5-V input and –5-V output voltage inverter at up to 1 A.
| Output voltage options | TIDA-01457.1 |
|---|---|
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 11.5 |
| Vout (Nom) (V) | -5 |
| Iout (Max) (A) | 1.5 |
| Output Power (W) | 7.5 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck Boost- Inverting |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
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
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 3- to 11.5-VIN, –5-VOUT, 1.5-A Inverting Power Module Reference Design (Rev. A) | PDF | HTML | Jan. 26, 2023 |
| User guide | Manufacturing and Rework Design Guide for MicroSiP™ Power Modules (Rev. A) | PDF | HTML | Jun. 16, 2021 | |
| Technical article | How to modify a step-down converter to the inverting buck-boost topology | PDF | HTML | May 17, 2018 |
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