RT6259A/B
Typical Application Circuit
L1
RT6259A/B
1.4µH
9, 10, 11
V
OUT
13, 14
SW
VIN
V
IN
1.05V/3A
C6
0.1µF
C1
10µF x 2
C2
0.1µF
C7
22µF x 2
15
12
16
1
C3
VCC
BOOT
VS
R1
8.25k
Output Signal
R3 100k
5
6
PGOOD
EN
VREG5
FB
Input Signal
R2
22.1k
2
VREG5
V
REG5
C4
1µF
3
SS
C5
3.3nF
GND PGND
7, 8, 17 (Exposed Pad)
4
Table 1. Suggested Component Values (VIN = 12V)
VOUT (V)
R1 (k)
R2 (k)
22.1
C3 (pF)
L1 (H)
1.4
C7 (F)
1
6.81
8.25
12.7
30.1
49.9
73.2
124
--
--
22 to 68
22 to 68
22 to 68
22 to 68
22 to 68
22 to 68
22 to 68
22 to 68
1.05
22.1
1.4
1.2
1.8
2.5
3.3
5
22.1
22.1
22.1
22.1
22.1
22.1
--
1.4
2
5 to 22
5 to 22
5 to 22
5 to 22
5 to 22
2
2
3.3
3.3
7
180
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10
DS6259A/B-01 September 2015
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
