AIC1577 AIC [Analog Intergrations Corporation], AIC1577 Datasheet - Page 7

• Manufacturer Part Number: AIC1577
• Description: External NMOS Step-Down PWM Controller
• Manufacturer: AIC [Analog Intergrations Corporation]

FB
ITH
BLOCK DIAGRAM
VIN
FB
2.5µA
ITH
SD
1.2V
SS
0.855V
+
-
VINT
Buffer_ITH
Q1
*
Q3 Q4
VINT
+
EA
Q2
*
+
-
OVDT
2.4V
0.8V
Slope
ITH
0.8V
REF
I
VIN
COMP
0.8V
1.33V
+
-
+
-
+
-
OSC
Clock
SD
Burst_Mode
Clock
R1
R2
Slope
R
S
Thermal
CS
Blank
Q
LEB
SD
Dropout
VIN
DET
40mV
+
Switching
Logic
+
-
LC_COMP
1_SHUT
VINT
Floating
Driver
VIN
VIN
INTVCC
VINT
AIC1577
VIN
M1
*
BOOST
DRI
SW
GND
7