Wearable applications like smart wristbands provide two main power rails to supply the wireless MCU, sensors, and the display. They are very tiny, and therefore require the smallest solution size possible. This reference design shows a full solution based on the TPS62770 multi-rail DC/DC converter, CC2650 wireless MCU, and a PMOLED display.
| Output voltage options | PMP9792.1 | PMP9792.2 |
|---|---|---|
| Vin (Min) (V) | 2.5 | 2.5 |
| Vin (Max) (V) | 5.5 | 5.5 |
| Vout (Nom) (V) | 1.8 | 12 |
| Iout (Max) (A) | .3 | .2 |
| Output Power (W) | .54 | 2.4 |
| Isolated/Non-Isolated | Isolated | Isolated |
| Input Type | DC | DC |
| Topology | Buck- Synchronous | Boost- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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
Design file that contains information on physical board layer of design PCB
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Multi Rail Low Iq Power for Wearable Applications Design Guide | Mar. 30, 2016 |
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.