TPS50601-SP Datasheet, PDF (27/40 Pages) Texas Instruments – 6-A Synchronous Buck Converter

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TPS50601-SP
SLVSD45 – DECEMBER 2015
8.4 Device Functional Modes
8.4.1 Fixed-Frequency PWM Control
The device uses fixed frequency, peak current mode control. The output voltage is compared through external
resistors on the VSENSE pin to an internal voltage reference by an error amplifier which drives the COMP pin.
An internal oscillator initiates the turn on of the high-side power switch. The error amplifier output is converted
into a current reference which compares to the high-side power switch current. When the power switch current
reaches the current reference generated by the COMP voltage level, the high-side power switch is turned off and
the low-side power switch is turned on.
8.4.2 Continuous Current Mode (CCM) Operation
As a synchronous buck converter, the device normally works in CCM under all load conditions.
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