米6体育平台手机版

SLVU276A February 2009 – October 2021 TPS54332

Trademarks
1Introduction
2Test Setup and Results
3Board Layout
1. 3.1 Layout
2. 3.2 Estimated Circuit Area
4Schematic and Bill of Materials
1. 4.1 Schematic
2. 4.2 Bill of Materials
5Revision History

1.3.1 Output Voltage Set Point

To change the output voltage of the EVM, change the value of resistor R₆. Changing the value of R₆ can change the output voltage above 0.8 V. The value of R₆ for a specific output voltage can be calculated using Equation 1.

Equation 1.

Table 1-3 lists the R₆ values for some common output voltages. Note that V_IN must be in a range so that the minimum on time is greater than 130 ns, and the maximum duty cycle is less than 91%. The values given in Table 1-3 are standard values, not the exact value calculated using Equation 1. Changing the output voltage from 2.5 V effectively changes the output impedance, which affects the loop response. It can be necessary to modify the compensation component values. See the TPS54332 3-A, 28-V Input Step-Down DC/DC Converter with Eco-mode data sheet for details.

Table 1-3 Output Voltages Available

Output Voltage (V)	R₆ Value (kΩ)
1.8	8.25
2.5	4.75
3.3	3.24
5	1.96