XR76203 Datasheet, PDF (16/20 Pages) Exar Corporation – 3A/5A/8A Synchronous Step Down COT Regulator

Application Circuit, XR76208
XR76203/5/8
OPTIONAL
CSNB 0.56nF RSNB 1 Ohm
CBST 1uF
R4 2k
R3 18.2k
SW RLIM 5.49k 1
2
RON 28k
3
CSS 47nF
4
5
VCC
R5 10k
6
FB
7
ILIM
EN
TON
SS
PGOOD
FB
AGND
U1
XR76208
CIN 0.1uF
CVCC 4.7uF
PVIN
24VIN
PVIN ²²
PVIN ²¹
SW ²⁰
PGND ¹⁹
PGND ¹⁸
PGND ¹⁷
PGND ¹⁶
PGND ¹⁵
CIN
2x 10uF/50V
IHLP-5050FD-01 _{400kHz, 3.3V @ 0-8A}
2.2uH
CFF
0.27nF
FB
R1
9.09k
COUT
3x 47uF/10V
R2
2k
© 2015 Exar Corporation
16 / 20
exar.com/XR76203/5/8
Rev 1A