The single-board solution consolidates multiple functional blocks into a single design, streamlines the overall system design by reducing the bill of materials and minimizing interconnection losses.
This results in improved efficiency, reduced system size, and better thermal performance.
Here is the comprehensive comparison between the prototyped multidemo board setup and the newly developed single board solution.
In the prototype, the design uses three separate demo boards: the LTC4416 for ideal diode power path control, the LTC4162-L for battery charging and power management, and the CN0509 USB charger board.
The CN0509 was particularly notable for its wide input voltage range of 5 V to 100 V and its ability to deliver a regulated 5 V output at up to 2 A. It combines the LTC7103 buck converter and the LT8302 isolated flyback converter to offer galvanic isolation between input and output.
In contrast, the single board consolidates these functionalities by replacing the LTC7103, and LT8302 with a single component—the LTC3115-1. While certain features like isolated output were sacrificed, the trade-off resulted in a more streamlined and practical design suitable for scalable applications.
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Physical Board Size
A single‑board solution reduces the BOM by about 30% and minimizes overall size, its compact design contributes to a more efficient power system architecture and enables smaller form factors without sacrificing performance. -
Efficiency
One of the most impactful improvements of this board is its ability to deliver power at high efficiency. Optimized power delivery reduces energy losses, which, in turn, supports longer operational times and improved thermal performance.
Compared to the multi-board prototype, the single-board implementation achieves significantly higher efficiency (exceeding 90%) due to reduced conversion stages and elimination of energy loss in cable used.
The design is therefore more suitable for compact and scalable applications.
Figure 7. Output current regulation and efficiency (single board vs. prototyped stacked demo board).
Application:
The single board power bank design features a streamlined layout that enhances overall efficiency and reduces the physical footprint.
The architecture is versatile and adaptable, making it suitable for a wide range of applications involving battery-powered devices. It supports intelligent power path management, which will prolong the battery lifespan.
This concept can be used in embedded automotive systems to combine photovoltaic input with other power supply sources and battery backup in large scale production.
Related Article:
What protection and performance features are built into the Single board Smart Power Bank?
What battery configurations are supported in Smart Power Bank?
How Does Single‑Board Smart Power Design Keep Your Device Running Even When Inputs Fail?
How Does the LTC4416 Enable Smart Power Switching in a Single‑Board System?
How Does the Smart Power Bank’s Design Manage Multiple Power Sources?
Why Choose a Single‑Board Smart Power Bank for Your Next Project?
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 505-LTC3115EDHD-1#PBF-ND | LTC3115EDHD-1#PBF |
| 505-LTC3115EDHD-1#TRPBFTR-ND,505-LTC3115EDHD-1#TRPBFCT-ND,505-LTC3115EDHD-1#TRPBFDKR-ND | LTC3115EDHD-1#TRPBF |
| LTC3115EFE-1#TRPBFTR-ND,LTC3115EFE-1#TRPBFCT-ND,LTC3115EFE-1#TRPBFDKR-ND | LTC3115EFE-1#TRPBF |
| 505-LTC3115EFE-1#PBF-ND | LTC3115EFE-1#PBF |
| 505-LTC3115IDHD-1#TRPBFTR-ND,505-LTC3115IDHD-1#TRPBFCT-ND,505-LTC3115IDHD-1#TRPBFDKR-ND | LTC3115IDHD-1#TRPBF |
| 505-LTC3115IDHD-1#PBF-ND | LTC3115IDHD-1#PBF |
| 505-LTC3115IFE-1#PBF-ND | LTC3115IFE-1#PBF |
| 505-LTC3115EDHD-2#PBF-ND | LTC3115EDHD-2#PBF |
| 505-LTC3115EFE-2#PBF-ND | LTC3115EFE-2#PBF |
| 505-LTC3115IFE-1#TRPBFTR-ND,505-LTC3115IFE-1#TRPBFCT-ND,505-LTC3115IFE-1#TRPBFDKR-ND | LTC3115IFE-1#TRPBF |
| LTC3115IFE-2#PBF-ND | LTC3115IFE-2#PBF |
| 505-LTC3115HFE-1#PBF-ND | LTC3115HFE-1#PBF |
| 505-LTC3115IDHD-2#PBF-ND | LTC3115IDHD-2#PBF |
| 161-LTC3115MPFE-1#PBF-ND | LTC3115MPFE-1#PBF |
| LTC3115MPFE-2#PBF-ND | LTC3115MPFE-2#PBF |
| 505-LTC3115EDHD-2#TRPBFTR-ND | LTC3115EDHD-2#TRPBF |
| 505-LTC3115HFE-2#PBF-ND | LTC3115HFE-2#PBF |
| 161-LTC3115IDHD-1#WPBF-ND | LTC3115IDHD-1#WPBF |
| 505-LTC3115EFE-2#TRPBFTR-ND | LTC3115EFE-2#TRPBF |
| 161-LTC3115IDHD-1#WTRPBFTR-ND | LTC3115IDHD-1#WTRPBF |
| LTC3115IFE-2#TRPBF-ND | LTC3115IFE-2#TRPBF |
| LTC3115HFE-1#TRPBF-ND | LTC3115HFE-1#TRPBF |
| LTC3115HFE-2#TRPBF-ND | LTC3115HFE-2#TRPBF |
| LTC3115IDHD-2#TRPBF-ND | LTC3115IDHD-2#TRPBF |
| LTC3115MPFE-1#TRPBF-ND | LTC3115MPFE-1#TRPBF |
| 505-LTC4162EUFD-LAD#TRPBFTR-ND,505-LTC4162EUFD-LAD#TRPBFCT-ND,505-LTC4162EUFD-LAD#TRPBFDKR-ND | LTC4162EUFD-LAD#TRPBF |
| 505-LTC4162EUFD-FAD#PBF-ND | LTC4162EUFD-FAD#PBF |
| 505-LTC4162EUFD-LAD#PBF-ND | LTC4162EUFD-LAD#PBF |
| 505-LTC4162EUFD-L42#TRPBFTR-ND,505-LTC4162EUFD-L42#TRPBFCT-ND,505-LTC4162EUFD-L42#TRPBFDKR-ND | LTC4162EUFD-L42#TRPBF |
| 505-LTC4162EUFD-SAD#PBF-ND | LTC4162EUFD-SAD#PBF |
| 505-LTC4162EUFD-SADM#PBF-ND | LTC4162EUFD-SADM#PBF |
| 505-LTC4162EUFD-LADM#PBF-ND | LTC4162EUFD-LADM#PBF |
| 505-LTC4162IUFD-FAD#PBF-ND | LTC4162IUFD-FAD#PBF |
| 505-LTC4162IUFD-SADM#PBF-ND | LTC4162IUFD-SADM#PBF |
| 505-LTC4162IUFD-LAD#PBF-ND | LTC4162IUFD-LAD#PBF |
| 505-LTC4162EUFD-L42#PBF-ND | LTC4162EUFD-L42#PBF |
| 505-LTC4162EUFD-L42M#PBF-ND | LTC4162EUFD-L42M#PBF |
| 505-LTC4162EUFD-L41#PBF-ND | LTC4162EUFD-L41#PBF |
| LTC4162EUFD-SSTM#PBF-ND | LTC4162EUFD-SSTM#PBF |
| LTC4162IUFD-FADM#PBF-ND | LTC4162IUFD-FADM#PBF |
| LTC4162IUFD-SSTM#PBF-ND | LTC4162IUFD-SSTM#PBF |
| LTC4162EUFD-L40#PBF-ND | LTC4162EUFD-L40#PBF |
| LTC4162EUFD-L40M#PBF-ND | LTC4162EUFD-L40M#PBF |
| LTC4162EUFD-FFSM#PBF-ND | LTC4162EUFD-FFSM#PBF |
| LTC4162EUFD-L41M#PBF-ND | LTC4162EUFD-L41M#PBF |
| 505-LTC4162EUFD-FSTM#PBF-ND | LTC4162EUFD-FSTM#PBF |
| LTC4162EUFD-FST#PBF-ND | LTC4162EUFD-FST#PBF |
| LTC4162EUFD-FFS#PBF-ND | LTC4162EUFD-FFS#PBF |
| LTC4162IUFD-SST#PBF-ND | LTC4162IUFD-SST#PBF |
| 505-LTC4162IUFD-L42#PBF-ND | LTC4162IUFD-L42#PBF |
| LTC4162IUFD-L40#PBF-ND | LTC4162IUFD-L40#PBF |
| LTC4162IUFD-L40M#PBF-ND | LTC4162IUFD-L40M#PBF |
| LTC4162IUFD-FFSM#PBF-ND | LTC4162IUFD-FFSM#PBF |
| LTC4162IUFD-L41M#PBF-ND | LTC4162IUFD-L41M#PBF |
| 505-LTC4162IUFD-L41#PBF-ND | LTC4162IUFD-L41#PBF |
| LTC4162IUFD-FSTM#PBF-ND | LTC4162IUFD-FSTM#PBF |
| 505-LTC4162IUFD-L42M#PBF-ND | LTC4162IUFD-L42M#PBF |
| LTC4162IUFD-FFS#PBF-ND | LTC4162IUFD-FFS#PBF |
| 505-LTC4162IUFD-LAD#TRPBFTR-ND | LTC4162IUFD-LAD#TRPBF |
| 505-LTC4162EUFD-FADM#TRPBFTR-ND,505-LTC4162EUFD-FADM#TRPBFCT-ND,505-LTC4162EUFD-FADM#TRPBFDKR-ND | LTC4162EUFD-FADM#TRPBF |
| 505-LTC4162IUFD-SAD#PBF-ND | LTC4162IUFD-SAD#PBF |
| 505-LTC4162IUFD-LADM#PBF-ND | LTC4162IUFD-LADM#PBF |
| LTC4162IUFD-FST#PBF-ND | LTC4162IUFD-FST#PBF |
| LTC4162EUFD-FADM#PBF-ND | LTC4162EUFD-FADM#PBF |
| LTC4162EUFD-SST#PBF-ND | LTC4162EUFD-SST#PBF |
| LTC4162EUFD-FAD#TRPBF-ND | LTC4162EUFD-FAD#TRPBF |
| LTC4162EUFD-FFS#TRPBF-ND | LTC4162EUFD-FFS#TRPBF |
| LTC4162EUFD-FFSM#TRPBF-ND | LTC4162EUFD-FFSM#TRPBF |
| LTC4162EUFD-FST#TRPBF-ND | LTC4162EUFD-FST#TRPBF |
| LTC4162EUFD-FSTM#TRPBF-ND | LTC4162EUFD-FSTM#TRPBF |
| LTC4162EUFD-L40#TRPBF-ND | LTC4162EUFD-L40#TRPBF |
| LTC4162EUFD-L40M#TRPBF-ND | LTC4162EUFD-L40M#TRPBF |
| LTC4162EUFD-L41#TRPBF-ND | LTC4162EUFD-L41#TRPBF |
| LTC4162EUFD-L41M#TRPBF-ND | LTC4162EUFD-L41M#TRPBF |
| LTC4162EUFD-L42M#TRPBF-ND | LTC4162EUFD-L42M#TRPBF |
| LTC4162EUFD-LADM#TRPBF-ND | LTC4162EUFD-LADM#TRPBF |
| LTC4162EUFD-SAD#TRPBF-ND | LTC4162EUFD-SAD#TRPBF |
| LTC4162EUFD-SADM#TRPBF-ND | LTC4162EUFD-SADM#TRPBF |
| LTC4162EUFD-SST#TRPBF-ND | LTC4162EUFD-SST#TRPBF |
| LTC4162EUFD-SSTM#TRPBF-ND | LTC4162EUFD-SSTM#TRPBF |
| LTC4162IUFD-FAD#TRPBF-ND | LTC4162IUFD-FAD#TRPBF |
| LTC4162IUFD-FADM#TRPBF-ND | LTC4162IUFD-FADM#TRPBF |
| LTC4162IUFD-FFS#TRPBF-ND | LTC4162IUFD-FFS#TRPBF |
| LTC4162IUFD-FFSM#TRPBF-ND | LTC4162IUFD-FFSM#TRPBF |
| LTC4162IUFD-FST#TRPBF-ND | LTC4162IUFD-FST#TRPBF |
| LTC4162IUFD-FSTM#TRPBF-ND | LTC4162IUFD-FSTM#TRPBF |
| LTC4162IUFD-L40#TRPBF-ND | LTC4162IUFD-L40#TRPBF |
| LTC4162IUFD-L40M#TRPBF-ND | LTC4162IUFD-L40M#TRPBF |
| LTC4162IUFD-L41#TRPBF-ND | LTC4162IUFD-L41#TRPBF |
| LTC4162IUFD-L41M#TRPBF-ND | LTC4162IUFD-L41M#TRPBF |
| LTC4162IUFD-L42#TRPBF-ND | LTC4162IUFD-L42#TRPBF |
| LTC4162IUFD-L42M#TRPBF-ND | LTC4162IUFD-L42M#TRPBF |
| LTC4162IUFD-LADM#TRPBF-ND | LTC4162IUFD-LADM#TRPBF |
| LTC4162IUFD-SAD#TRPBF-ND | LTC4162IUFD-SAD#TRPBF |
| LTC4162IUFD-SADM#TRPBF-ND | LTC4162IUFD-SADM#TRPBF |
| LTC4162IUFD-SST#TRPBF-ND | LTC4162IUFD-SST#TRPBF |
| LTC4162IUFD-SSTM#TRPBF-ND | LTC4162IUFD-SSTM#TRPBF |
| 505-LTC4416EMS-1#PBF-ND | LTC4416EMS-1#PBF |
| 505-LTC4416EMS#TRPBFTR-ND,505-LTC4416EMS#TRPBFCT-ND,505-LTC4416EMS#TRPBFDKR-ND | LTC4416EMS#TRPBF |
| 505-LTC4416EMS#PBF-ND | LTC4416EMS#PBF |
| 505-LTC4416IMS#PBF-ND | LTC4416IMS#PBF |
| 505-LTC4416IMS-1#PBF-ND | LTC4416IMS-1#PBF |
| 505-LTC4416IMS#TRPBFTR-ND,505-LTC4416IMS#TRPBFCT-ND,505-LTC4416IMS#TRPBFDKR-ND | LTC4416IMS#TRPBF |
| LTC4416EMS-1#TRPBFTR-ND,LTC4416EMS-1#TRPBFCT-ND,LTC4416EMS-1#TRPBFDKR-ND | LTC4416EMS-1#TRPBF |
| 505-LTC4416IMS-1#TRPBFTR-ND | LTC4416IMS-1#TRPBF |
| 161-LTC4416IMS-1-ND | LTC4416IMS-1 |