RT2101B
Typical Application Circuit
L
RT2101B
1.5µH
1, 2, 16
V
1.8V
10, 11, 12
OUT
V
IN
SW
VIN
C
BOOT
C2
22µF
C3
C1
10µF
R3
0.1µF
15
14
22µF
R1
EN
100k
13
11.8k
BOOT
PGOOD
6
7
FB
R2
10k
9
8
COMP
SS/TR
R
C
3, 4, 17 (Exposed Pad)
5
C4
10nF
GND
AGND
7.68k
RT/SYNC
C
C
R
RT
180k
3.3nF
Table 1. Recommended Component Selection
R1 (k)
4.3
R2 (k)
10
L (H)
VOUT (V)
RC (k)
11.8
CC (nF)
1
1.2
1.8
2.5
3.3
1 to 1.5
1 to 1.5
1 to 2.2
1 to 2.2
11.8
20.4
30
10
7.68
10.7
14
3.3
10
2.2
10
1.8
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6
DS2101B-06 March 2020
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
