Texas Instruments TPS7A13EVM-057, User Manual, Page: 5 / 19

3.3 TPS7A13 LDO Operation
The TPS7A13EVM-057 evaluation module contains the TPS7A13 LDO with input, bias, and output capacitors
installed. These four components provide the minimum required solution size, as illustrated by the white boxes in
Figure 3-2 . Additional pads are available to test the LDO with additional input and output capacitors beyond what
is already installed on the EVM. The TPS7A13 LDO can be enabled or disabled by using the J7 3-pin header.
1. Place a 2-pin shunt across the header to tie VIN to EN to enable the device.
2. Place a 2-pin shunt across the header to tie GND to EN to disable the device.
Alternatively, by connecting an external function generator to TP1 (EN) and a nearby GND post (J11), the
user can enable or disable the TPS7A13 LDO after VIN is applied.
Figure 3-1 shows the result of the
TPS7A13EVM-057 during turn on. The blue trace is the enable voltage, and the red trace is the output voltage.
Figure 3-1. TPS7A13EVM-057 Turn On
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SBVU074 – NOVEMBER 2021
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