Analog Devices DC2665B-C Demo Manual page 3

QUICK START PROCEDURE
NOTES:
1. To achieve the minimum output ripple voltage, optimize the operation frequency at different input and output volt-
ages. Suggested operation frequencies at different voltages are shown in Table 1. Adjust the operation frequency
by changing the value of R
Table 1. Suggested Operation Frequencies
3.3V
V (V) 1
OUT
f (kHz) 500
SW
2. For applications that require small output voltage ripple, add shunt-through three-terminal capacitors on the output
at C41 and C42.
Figure 1. Test Setup of DC2665B-C
(R5). Refer to the LTM4657 data sheet for detailed calculation of R
fSET
IN
1.5 2.5 1
650 800 500
DEMO MANUAL DC2665B-C
5V
IN
1.5 2.5 3.3
650 800 1000
dc2665bc F01
12V
IN
1 1.5 2.5
500 650 800
(R5).
fSET
3.3 5
1000 1250
Rev. 0
3