2 Quick Start
The following instructions explain how to quickly setup testing of POLA_VOUT_1.8V circuit. Testing of the
POLB_VOUT_3.3V circuit is analogous to this setup with connections moving to that converter circuit. [NOTE:
Each converter circuit provides two connection options for PVIN and VOUT. PVIN can be supplied to banana
jacks J3/J2 or terminal block J19. VOUT can be connected to banana jacks J1/J2 or terminal block J20. It is
recommended to use terminal blocks instead of banana jacks if currents of 5 A or more are being tested.]
1. Connect the input voltage supply between J3, PVIN_A, and J2, GND_A using short, low gauge wires. [Note:
For very accurate PVIN control across all load conditions, connect sense lines from power supply to
testpoints TP5, PVIN_A, and TP7, GND_A.]
2. Connect the load of the converter between J1, VOUT_A, and J2, GND_A using short, low gauge wires.
3. Set the supply voltage (PVIN) to 5V with a current limit set to 4 A (expect ~2.6 A maximum).
4. Turning on the PVIN power supply, the converter should provide a regulated V
OUT
= 1.8 V across all current
load conditions from 0 A to 6 A.
Quick Start
6
TPS7H4010EVM User's Guide
SNVU744 – OCTOBER 2020
Copyright © 2020 Texas Instruments Incorporated
