8
Maximizing efficiency
This evaluation board has been designed to reach a fair compromise between efficiency performance and EM
emissions compliance.
Nevertheless, if the maximum efficiency is needed, the following actions are suggested:
1.
Remove the snubber circuit consisting of R5 and C25, or choose a lower value for the capacitor C25 (for
example 470 pF)
2.
Bypass the whole EMI filter by bridging the jumpers X1, X14 and X16
3.
Bypass the output ferrite beads L3 and L5
4.
Replace the main inductor L6 with one that boasts a lower parasitic DC resistance, for example
•
Vishay IHLP6767GZER470M8A
•
Bourns SRP1770TA-470M
5.
Bypass gate resistor R8
Voltage-mode boost to ground evaluation kit
TLD5098EP
8 Maximizing efficiency
User Manual
11
2020-09-17
