AIC1577 Datasheet, PDF (12/14 Pages) Analog Intergrations Corporation – External NMOS Step-Down PWM Controller

AIC1577
Fig. 15 Placement (Top Overlay)
Fig. 16 Placement (Bottom Overlay)
APPLICATION CIRCUIT
** _{VIN 6V~24V}
R4
1.2M
D2
LL4148
C7
1µF
C5
330pF
R3
24k
1
CS
VIN ⁸
2 _{ITH/RUN BOOST} 7
3
FB
DRI ⁶
4
GND
SW ⁵
AIC1577
1000pF
C1
C2
0.1µF
C3
0.1µF
C4
R1
20k
1nF
R2 62k
R_S
33m
V_IN 6V~24V
+ _CIN1
22µF
+ ^CIN2
22µF
M1
FDS6694
L1
V_OUT 3.3V 3A
D1
SL43
10µH
C_OUT
220µF
C6
2.2µF
Fig. 17 3.3V Step-Down Converter with External Soft-Start Circuit
12