ISL8023AIRTAJZ-T7A Intersil, ISL8023AIRTAJZ-T7A Datasheet - Page 5

• Manufacturer Part Number: ISL8023AIRTAJZ-T7A
• Description: ISL8023 Series 2.7 - 5.5 V 3 A 4 Mhz Buck Regulator - TQFN-16
• Manufacturer: Intersil

SGND
VFB
SS
EN
PG
SHUTDOWN
BANDGAP
6k
0.85*VREF
5
START
VREF
SOFT
0.6V
Soft
0.5V
3pF
+
+
+
-
+
-
-
DELAY
1ms
-
+
EAMP
SCP
55pF
UV
OV
SLOPE
100k
COMP
COMP
Slope
+
FIGURE 4. FUNCTIONAL BLOCK DIAGRAM
ISL8023, ISL8024
-
+
COMP
FS
OSCILLATOR
SYNC
SKIP
OCP
SHUTDOWN
SHUTDOWN
+
+
-
-
PROTECTION
CONTROLLER
HS DRIVER
NEG CURRENT
PWM/PFM
ZERO-CROSS
LOGIC
SENSING
SENSING
THRESHOLD
VDD
ISET
CSA
+ +
-
100
DRIVER
LS
P
N
PHASE
PGND
VIN
May 17, 2012
FN7812.2