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ISL95873
Buck PWM Controller with Internal Compensation and External Reference Tracking
Intersil
ISL95873 Datasheet PDF : 17 Pages
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Application Schematics
R
VCC
+5V
C
PVCC
ISL95873
C
VCC
RTN1
R
FB1
GND
1
RTN
2
GPIO
EN
3
REFIN
4
BOOT
12
UGATE
11
PHASE
10
PGOOD
9
C
BOOT
Q
HS
Q
LS
EXTERNAL
REFERENCE
VOLTAGE
R
OFS
R
FB
V
IN
3.3V TO 25V
CIN
L
O
C
SEN
R
O
V
OUT
0.5V TO 3.3V
CO
RTN1
0
FIGURE 2. ISL95873 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND DCR CURRENT SENSE
R
VCC
+5V
C
PVCC
C
VCC
V
IN
3.3V TO 25V
CIN
RTN1
R
FB1
GND
1
RTN
2
GPIO
EN
3
REFIN
4
BOOT
12
UGATE
11
PHASE
10
PGOOD
9
C
BOOT
Q
HS
L
O
Q
LS
R
SEN
C
SEN
V
OUT
0.5V TO 3.3V
CO
RTN1
EXTERNAL
REFERENCE
R
1
R
FB
VOLTAGE
R
2
R
O
0
FIGURE 3. ISL95873 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND RESISTOR CURRENT SENSE
2
FN8390.0
December 10, 2012
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