RT6214A/B
Table 2. Suggested Component Values (VIN = 12V, RT6214A/BHRGJ6F)
VOUT (V)
1.05
1.2
R1 (k)
10
R2 (k)
27
L (H)
2.2
COUT (F)
CFF (pF)
44
44
44
44
44
44
--
20.5
40.2
40.2
40.2
40.2
36
2.2
--
1.8
30
3.6
--
2.5
18
3.6
22 to 68
22 to 68
22 to 68
3.3
12.1
7.32
4.7
5
4.7
Table 3. Suggested Component Values (VIN = 12V, RT6214A/BHRGJ8F)
VOUT (V)
1.05
1.2
R1 (k)
10
R2 (k)
27
L (H)
1.5
COUT (F)
CFF (pF)
--
44
44
44
44
44
44
20.5
40.2
40.2
40.2
40.2
36
1.5
--
1.8
30
2.2
--
2.5
18
2.2
22 to 68
22 to 68
22 to 68
3.3
12.1
7.32
3.6
5
3.6
Note 1 : All the input and output capacitances are the suggested values, which refer to the effective
capacitances, and are subject to any de-rating effect, like a DC bias.
Note 2 : For lower output voltage applications, load transient responses can also be improved by
adding a feedforward capacitor (CFF, 22pF to 68pF).
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6214A/B-04 August 2017
www.richtek.com
11
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
