This reference design uses the LM61495-Q1 synchronous buck regulator. This device features internal top and bottom field-effect transistors (FET), which are configured as a synchronous inverting buck-boost converter to provide an adjustable output between –7.5V and –12V capable of delivering a maximum 4A of current to the load from 9V to 18V input. The output voltage is adjusted by providing an analog voltage signal to the Vcntl_1 (TP4) test point, referenced to GND. Control voltages between 0V and 5V correspond to output voltages between –12V and –7.5V, respectively.
| Output voltage options | PMP23241.1 |
|---|---|
| Vin (Min) (V) | 9 |
| Vin (Max) (V) | 18 |
| Vout (Nom) (V) | -12 |
| Iout (Max) (A) | -5 |
| Output Power (W) | 60 |
| 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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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Synchronous Inverting Buck-Boost Converter With Adjustable Negative Output Reference Design | PDF | HTML | Jul. 11, 2024 |
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