RT6212C/D
Typical Application Circuit
RT6212C/D
V
IN
3
C
IN
22μF
Enable
5
VIN
BOOT
LX
EN
GND
1
FB
4
R2
24k
6
2
C
BOOT
0.1μF
L
2.2μH
V
OUT
R1
12k
C
FF
Open
C
OUT
22μF
Table 1. Recommended Components Selection (RT6212C/DHGJ6F)
V
OUT
(V)
1
1.2
1.5
1.8
2.5
3.3
5
R1 (k)
6
12
21
30
51
75
126
R2 (k)
24
24
24
24
24
24
24
C
FF
(pF)
--
--
--
10 to 100
10 to 68
10 to 68
10 to 68
L (H)
1.2
1.2
2.2
2.2
2.2
2.2
3.3
C
OUT
(F)
22
22
22
22
22
22
22
Note : (1) All the input and output capacitors are the suggested values, referring to the effective capacitances,
subject to any de-rating effect, like a DC bias.
(2) For low output voltage application, it can optimize the load transient response of the device by adding feedforward
capacitor (C
FF
).
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6
DS6212C/D-01
September 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
