NCP5010 ON Semiconductor, NCP5010 Datasheet - Page 13

• Manufacturer Part Number: NCP5010
• Description: Boost Converter
• Manufacturer: ON Semiconductor

Basic Feedback
is drive in a string of LEDs. A 20.8 mA current is fixed by
R1 and LEDs are dim with PWM apply on CTRL pin.
Different Supply
One end of the inductor (V
to a battery like 4 cell alkaline or 2 cell Li−Ion. And V
Figure 29 is a basic application where a regulated courant
The NCP5010 can operate from two different supply:
ENABLE
PWM
C
4.7 mF 0603
X5R 6.3 V
C
4.7 mF 0603
in
X5R 6.3 V
in
V
Bat
BAT
V
in
) can be directly connected
NCP5010
NCP5010
2.7 to 5.5 V
2.7 to 5.5 V
A2
Figure 29. Typical Semi−Pulsed Mode of Operation
A2
CTRL
CTRL
Figure 30. Operate from Different Supply
TYPICAL APPLICATION CIRCUITS
V
Bat
V
V
OUT
OUT
22 mH
22 mH
L1
L1
http://onsemi.com
IN
C1
C1
pin
NCP5010
13
need a power delivered for example from an LDO. Care
must be observed to have always V
minimum output voltage range will be V
R1
24
R1
24
LED
LED
LED
LED
C2
1 mF 0805
L1:
C1:
C2:
C2
1 mF 0805
L1:
C1:
C2:
X5R 25 V
X5R 25 V
TDK VLF4012AT−220MR51
TDK VLF4012AT−220MR51
TDK C1608X5R0J475MT
TDK C2012X5R1E105MT
TDK C1608X5R0J475MT
TDK C2012X5R1E105MT
BAT
BAT
above V
voltage.
IN
and