This reference design is a 450-W dual-phase boost converter for automotive applications. The circuit accepts an input voltage of 6 V to 35 V and boosts to a nominal 12-V output rail that is capable of sourcing 37.5 A of current. The design uses two synchronous-boost controllers operating at a switching frequency of 450 kHz per phase. Each controller has an internal current source to keep the high-side MOSFETs on at 100% duty cycle. This allows for bypass operation when the input voltage is greater than the regulated output voltage.
| Output voltage options | PMP22819.1 |
|---|---|
| Vin (Min) (V) | 6 |
| Vin (Max) (V) | 35 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 37.5 |
| Output Power (W) | 450 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Boost- Multiphase |
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
Detailed schematic diagram for design layout and components
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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | 450-W Dual-Phase Boost Converter Reference Design for Automotive Applications | PDF | HTML | Sep. 06, 2022 |
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