ISL62871 Datasheet, PDF (5/25 Pages) Intersil Corporation – PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator

ISL62871, ISL62872
Application Schematics (Continued)
+5V
GPIO
R_VCC
C_PVCC
C_VCC
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
R_SET1
VCC
R_COMP
R_O
C_COMP
R_FB
GPIO
FIGURE 4. ISL62871 APPLICATION SCHEMATIC WITH TWO OUTPUT VOLTAGE SETPOINTS AND DCR CURRENT SENSE
+5V
GPIO
R_VCC
C_PVCC
C_VCC
GND
1
EN
2
VID0
3
SREF
4
BOOT
12
UGATE
11
PHASE
10
OCSET
9
C_BOOT
Q_HS
L_O
Q_LS
V_IN
3.3V TO 25V
CIN_C
CIN_B
R_SNS
C_OCSET
V_OUT
0.5V TO 3.3V
CO_C
CO_B
R_SET1
VCC
R_O
R_COMP
C_COMP
R_FB
GPIO
FIGURE 5. ISL62871 APPLICATION SCHEMATIC WITH TWO OUTPUT VOLTAGE SETPOINTS AND RESISTOR CURRENT SENSE
5
FN6707.0
August 14, 2008