UC3550G-XX-AF5-R UTC [Unisonic Technologies], UC3550G-XX-AF5-R Datasheet - Page 6

• Manufacturer Part Number: UC3550G-XX-AF5-R
• Description: PWM CONTROLLED,PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER
• Manufacturer: UTC [Unisonic Technologies]

UC3550
Recommended components
Nmos t
L
SD
C
C
NPN t
t
R
C
R
IN
L
b
b
：500～1000Ω(Adjust according to load and Tr. h
：3000p(ceramic type)
TYPICAL STEP-UP CONVERTER APPLICATION
R
：2SD1628(Sanyo)，MMJT9410
：16V220uF (tantalum)
R
：10V 10uF (tantalum)
：MA737, or MBRM110L
type
：10Uh(Sunida CD54 fosc＝300kHz)
：XP161A0390PR/ (Torex) or NTGS3446T1(ON SEMI)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
V
IN
V
IN
10uF
10uF
0.1µ
0.1µ
Step-up Converter using external MOSFET
OUT
CE
NC
OUT
1
2
3
Step-up Converter using external NPN
NC
CE
1
2
3
10uH
10uH
UC3550
UTC
UC3550
UTC
GND
4
EXT
5
EXT
4
5
GND
FE
Cb 3000P
levels)
Rb 560
220uF
220uF
V
OUT
V
OUT
QW-R502-082,B
CMOS IC
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