TPS62740, TPS62742

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SLVSB02B – NOVEMBER 2013 – REVISED JULY 2014

Device Functional Modes (continued)

9.4.3 Internal Current Limit

The TPS6274x integrates a current limit on the high side, as well the low side MOSFETs to protect the device

against overload or short circuit conditions. The peak current in the switches is monitored cycle by cycle. If the

high side MOSFET current limit is reached, the high side MOSFET is turned off and the low side MOSFET is

turned on until the current decreases below the low side MOSFET current limit.

9.4.4 Dynamic Voltage Scaling with VSEL Interface

During operation, the output voltage of the device can be changed, see Figure 47. The device will not actively

ramp down the output voltage from a higher to a lower level.

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