AP1609 Diodes, Inc., AP1609 Datasheet - Page 4

• Manufacturer Part Number: AP1609
• Description: Pwm/pfm Dual Mode Step-up Dc/dc Converter
• Manufacturer: Diodes, Inc.

Typical Application Circuit
AP1609 Rev. 1
(1) Normal Circuit
(2) HV Circuit
above 5.5V
2.5V~6V
100u
470u
0.1u
0.1u
3.3u
ZD
100
5V
R
330K
3.3u
0.1u
V
out
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
V
CE
330K
GND
0.1u
= 1.23 (1+
CC
V
www.diodes.com
out
10uH
GND
CE
V
×
= 1.23 (1+
CC
4 of 8
PGND
10uH
R
R
×
1
2
FB
LX
) , R
PGND
R
R
1
2
2
= 10K~100K
FB
LX
) , R
SS340
2
= 10K~100K
SS340
R
R
1
2
R
R
1
2
Option
C
BP
Option
C
BP
0.1u
©
0.1u
JANUARY 2007
AP1609
Diodes Incorporated
100u
470u
Vout
15V