TPS56121 Datasheet, PDF (14/31 Pages) Texas Instruments – 4.5-V to 14-V Input High-Current Synchronous Buck Converter

TPS56121
SLUSAH4C – MARCH 2011 – REVISED JANUARY 2015
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7.4 Device Functional Modes
The TPS56121 devices operate in continuous conduction mode (CCM) at a fixed frequency, regardless of the
output current. For the first 128 switching cycles, the low-side MOSFET on-time is slowly increased to prevent
excessive current sinking in the event the device is started with a prebiased output. Following the first 128
switching cycles, the low-side MOSFET and the high-side MOSFET on-times are fully complementary.
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