9.2.1 Design Requirements

A typical operation for the TVS0701 would be protecting a nominal 5-V input to an LDO similar to Figure 7. In this example, the TVS0701 is protecting the input to a TPS77033, a standard LDO with an input voltage range of 2.7 V to 10 V and an absolute maximum voltage of 13.5 V. The input must be protected against transient voltage surges that can be produced by an unstable supply, and the input must also be protected against reverse voltage condition that can be caused by miswiring. Without any input protection, this input voltage will rise to hundreds of volts for multiple microseconds and violate the absolute maximum input voltage and harm the device if a surge event is caused by lightning, coupling, ringing, or any other fault condition. TI's Flat-Clamp technology provides surge protection diodes that can maximize the useable voltage range and clamp at a safe level for the system.