SLIN-06F2A Datasheet, PDF (19/26 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input, 0.6 Vdc - 3.63 Vdc /6 A Outputs
January 13, 2011
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Tunable Loop^TM (continued)
Table 2.General recommended values of R_TUNE and C_TUNE for Vin=5V and various external ceramic capacitor
combinations.
Co
R_TUNE
C_TUNE
1x47μF
47
4700pF
2x47μF
47
10nF
4x47μF
47
33nF
6x47μF
33
47nF
10x47μF
33
56nF
20x47μF
33
68nF
Table 3.Recommended values of R_TUNE and C_TUNE to obtain transient deviation of ≤2% of Vout for a 3A step
load with Vin=5V.
Vo
Co
R_TUNE
C_TUNE
ΔV
3.3V
2.5V
1.8V
3 x 47μF 4 x 47μF 5 x 47μF
100
15nF
58mV
56
18nF
45mV
47
27nF
34mV
1.2V
1 x 47μF +
330uF
Polymer
33
47nF
24mV
0.6V
6 x 47μF +
330uF
Polymer
33
39nF
12mV
Table 4. General recommended values of R_TUNE and C_TUNE for Vin=3.3V and various external ceramic capacitor
combinations.
Co
R_TUNE
C_TUNE
1x47μF
47
10nF
2x47μF
47
15nF
4x47μF
47
39nF
6x47μF
33
47nF
10x47μF 20x47μF
33
33
68nF
82nF
Table 5. Recommended values of R_TUNE and C_TUNE to obtain transient deviation of ≤2% of Vout for a 3A step
load with Vin=3.3V.
Vo
Co
R_TUNE
C_TUNE
ΔV
2.5V
1.8V
6 x 47μF 6 x 47μF
33
47nF
46mV
33
47nF
33mV
1.2V
2 x 47μF +
330uF
Polymer
33
68nF
24mV
0.6V
2 x 330uF
Polymer
33
220nF
12mV
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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