APW8871 Datasheet, PDF (15/27 Pages) Anpec Electronics Coropration – DDR4 TOTAL POWER SOLUTION (VPP/VDDQ/VTT) SYNCHRONOUS DC/DC CONVERTER for NB/MB

APW8871
Typical Application Circuit
S5
S3
VLDOIN
C _VLDOIN
10 µF
(MLCC)
VTT
CVTT
10 µF
(MLCC)
VTTREF
VDDQ/2
C _{VT TREF}
0. 22µF
R POK
100K
R PMAX
100K
VTTSNS
VLDOIN
VTT
VTTREF
BOOT
APW8871
LX1
VCC
VDDQSNS
PVCC
LX 2
100K
100 K
SMBus Power
R VCC
5V
2 .2
CBOOT
0. 1µF
VI N
C_{I N}
10uF x 2
(MLCC)
4.5 V~25 V
L OUT2
1 .5 µH
4 7K
L OUT1
1 µH
CIN
1 0µF
(MLCC)
VPVCC
4.5 V ~5. 5V
VPP
2 .5V /0.6A
CVPP
10µF(MLCC)
VDDQ
1 .2V /8.5 A
C VDDQ
100 µF(MLCC)
15 K
DDR4 Total Power Solution Application Circuit
C opyright © ANPEC Electronics C orp.
15
Rev. A.1 - Sep., 2015
www.anpec.com.tw