Input/Output Connector Descriptions
2-2
2.1
Input/Output Connector Descriptions
2.1.1
J1 − VIN
This is the positive connection to the input power supply. For best performance
this connection should have low inductance and be driven by a low-impedance
source.
2.1.2
J2 − GND
This is the return connection for the input power supply.
2.1.3
J3 − VOUT
This is the positive connection from the output of the low dropout regulator.
Connect this pin to the positive input of the load.
2.1.4
J4 − GND
This is the negative connection from the output of the low dropout regulator.
Connect this pin to the negative input of the load.
2.1.5
J5 − EN
This jumper enables and disables the LDO output. Connecting EN to ON en-
ables the device, while connecting EN to OFF disables the device.
2.2
Set-Up
Connect an input supply between J1 and J2. The voltage range on this supply
should not exceed 5.5V. The load should be connected between J4 and J5.
To enable the device, configure J3 so that the ON terminal is shorted to the EN
terminal with the provided terminal post.
2.3
Operation
This EVM has been optimized to operate over the entire input voltage range
of the TPS793xxYEQ LDO (2.7V to 5.5V). The output is a low-noise source
capable of supplying 200mA. Only input and output ceramic capacitors are re-
quired for the LDO to function; however, an optional bypass capacitor is con-
nected to BYP to further reduce output noise.
