AP2200B Datasheet, PDF (13/16 Pages) HuaXinAn Electronics CO.,LTD – Step-Up DC-DC Converter IC Supporting Dye-sensitized Solar Cell

11. Recommended External Circuits
■ When Setting the Output Voltage to 3.0V or 3.8V
[AP2200B]
VREG
CREG
STBY
MCU
VTGT＝3.8V
VTGT＝3.0V
SEL
Y
TEST1
Y
TEST2
Y
LDO
REF
OSC
VOUT
Monitor
VIN
Monitor
Logic
Load
Control
Pre-
Driver
Start Up
System
Battery
VB
M1
LC
M2
C1
0.1uF
VOUT
COUT
L
SW
P.V.
VIN
VCP
PG
GND
CIN
CCP
Figure 6. When Setting the Output Voltage to 3.0/3.8V
Note 10. : Power supply of the startup circuit. The supply source is P.V.
: Power supply of the Internal circuits, VB pin and SEL pin for pull up.
Note 11. Select the C1 value to prevent the LC pin voltage from exceeding the absolute maximum rating due
to the current through parasitic capacitance of the external load switch.
■ Recommended Parts
Table 3. Recommended Parts
Item
Symbol
Capacitors
CIN
COUT
CREG
CCP
C1
Inductors
L
Load switches
M1
M2
Value
10µF
10µF
1µF
0.01µ
0.1µF
6.8µH
-
Type
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
TDK: SLF6045T-6R8N2R0-3PF
On Semiconductor:
NTS2101P
MS1613-E-01
- 13 -
2014/04