The TL497A is a fixed-on-time variable-frequency switching-voltage-regulator control circuit.
It incorporates all the active functions required in the construction of switching voltage regulators. It also can be used as the control element to drive external components for high-power-output applications.
The TL497A was designed for ease of use in step-up, step-down, or voltage-inversion applications requiring high efficiency.
Note: May be silver or black label TI version.
MFG: Texas Instruments