ISL62871 Datasheet, PDF (6/25 Pages) Intersil Corporation – PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator

ISL62871, ISL62872
Application Schematics (Continued)
R_VCC
+5V
C_PVCC
GPIO
EXT_REF
VCC
PGND
2
GND
3
EN
4
VID1
5
VID0
6
SREF
7
SET0
8
SET1
9
VCC
19
BOOT
18
UGATE
17
PHASE
16
NC
15
OCSET
14
VO
13
FB
12
C_VCC
C_BOOT
Q_HS
Q_LS
L_O
C_OCSET
R_COMP
R_O
C_COMP
V_IN
3.3V TO 25V
CIN_C
CIN_B
V_OUT
0.5V TO 3.3V
CO_C
CO_B
GPIO
R_FB
FIGURE 6. ISL62872 APPLICATION SCHEMATIC WITH EXTERNAL REFERENCE INPUT AND DCR CURRENT SENSE
R_VCC
+5V
C_PVCC
C_VCC
GPIO
EXT_REF
GND
1
EN
2
VID0
3
SREF
4
BOOT
12
UGATE
11
PHASE
10
OCSET
9
C_BOOT
Q_HS
Q_LS
V_IN
3.3V TO 25V
CIN_C
CIN_B
L_O
C_OCSET
V_OUT
0.5V TO 3.3V
CO_C
CO_B
VCC
R_COMP
R_O
C_COMP
GPIO
R_FB
FIGURE 7. ISL62871 APPLICATION SCHEMATIC WITH EXTERNAL REFERENCE INPUT AND DCR CURRENT SENSE
6
FN6707.0
August 14, 2008