SPRACK2A September   2019  – March 2020 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

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3.6 Power Management

There are different options to power the F28004x and F28002x devices. F28004x has flexibility in that it supports both dual-rail (3.3 V and 1.2 V) or single-rail (3.3 V) with internal VREG or DCDC to provide the 1.2 V rail. F28002x only supports single-rail 3.3 V supply with the internal VREG providing the 1.2 V rail. This section describes the power management differences and similarities between the two devices.