XR76201 Datasheet, PDF (14/16 Pages) Exar Corporation – 40V PowerBloxTM 1.5A Synchronous Step-Down COT Regulator

Applications Information (Continued)
Application Circuit
XR76201
R4 2k
R3 18.2k
CBST 0.1µF
PVIN
24VIN
SW ^{RLIM 1.8k}
RON 16.9k
CSS 47nf
VCC
R5 10k
FB
1
ILIM
2
EN
3
TON
4
SS
5 _PGOOD
6 _FB
7 _AGND
XR76201
22
PVIN ₂₁
PVIN ₂₀
SW
X
19
PGND ₁₈
PGND ₁₇
PGND ₁₆
PGND ₁₅
PGND
CIN
4.7µF/50V
CIN1
0.1µf
CVCC
4.7µf
PVIN
VCC
SW
600kHz 3.3V at 0-1.5A
Coilcraft XAL4030-682ME
6.8µH
CFF
270pF
R1 9.09k
COUT
47µF/10V
RFF
20Ω
FB
R2 2k
Figure 24. Application Circuit
REV1A
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