This reference design provides a tiny auxiliary +12-V supply for general purpose. In this case, SEPIC topology supports wide input range from 6 V to 60 V. Even at inputs as low as 3.5 V, this reference design is able to provide half of the output power. Another benefit of SEPIC is low reflected ripple, resulting in less conducted emissions. The small magnetizing inductance sets right half plane zero fairly high, so loop bandwidth can be increased and allows a small output capacitance by keeping good transient response.
| Output voltage options | PMP30781.1 |
|---|---|
| Vin (Min) (V) | 6 |
| Vin (Max) (V) | 60 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | .2 |
| Output Power (W) | 2.4 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Sepic- Integrated Switch |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Tiny Automotive 2-W Bias Power Supply Reference Design | Mar. 10, 2020 |
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