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Overview of OPA344 by Texas Instruments
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CAD Models for OPA344 by Texas Instruments
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Reference Designs related to OPA344
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Inverting buck-boost reference design
This reference design uses UCD3138064A as a digital controller to control two-phase two-rail inverting buck-boost. This non-isolated converter is used for wireless radio power. The input voltage is from -35 V to -60 V. There are two outputs. The default output voltage of rail 1 is 32 V and max current is 8.5 A; the default output voltage of rail 2 is 48 V and max current is 5.5 A. The output voltage is adjustable from 30 V to 56 V. With some component changes and firmware changes: the hardware can be used for current mode control or transition mode control to increase power and improve load transient. Test results of three controls are provided respectively.