200KHz, PWM Buck DC/DC & Linear Controller
Typical Application Circuit
(1) VOUT2 Drive NPN
V =3.3V
CC2
VOUT2=1.8V
220µF R1
50
100nF
R2 1nF
100
V CC1
470µ F
PMOS
VOUT1=3.3V
220µ F
R3
47uH
170 Schottcky
R4
100
1 SS/EN
OUT2 8
2 SCP
FB2 7
3 GND
FB1 6
4 OUT1
VCC 5
AP2006
AP2006
V
CC1
220µF
AP2006=> VOUT1=1.25*(1+R3/R4)
VOUT2=1.25*(1+R1/R2)
Anachip Corp.
www.anachip.com.tw
Rev. 1.1 Nov 17, 2004
4/7