Active-Semi
Figure 4:
ACT4050 3.3V/3.5A Output Application
ACT4050
Rev 2, 01-Jul-11
: D1 is a 30V, 5A Schottky diode with low forward voltage, a B530C equivalent. C4 can be either a ceramic capacitor (Panasonic
ECJ-3YB1C226M)
or SP-CAP (Specialty Polymer) Aluminum Electrolytic Capacitor such as Panasonic EEFCD0J470XR. The SP-Cap
is based on aluminum electrolytic capacitor technology, but uses a solid polymer electrolyte and has very stable capacitance
characteristics in both operating temperature and frequency compared to ceramic, polymer, and low ESR tantalum capacitors.
Table 4:
ACT4050EV Bill of Materials (Apply for 3.3V Output Application)
ITEM
DESCRIPTION
MANUFACTURER
QTY
REFERENCE
1
2
3
4
5
6
7
8
9
10
11
IC, ACT4050
Resistor, 30.5kΩ , 1%, SMT, 0603
Resistor, 10kΩ, 1%, SMT, 0603
Resistor, 12kΩ, 5%, SMT, 0603
Capacitor, Ceramic, 10µF/35V, X7R, SMT, 1206
Capacitor, Ceramic, 22µF/6.3V, X7R, SMT, 1206
Capacitor, Ceramic, 10nF/50V, X7R, SMT, 0603
Capacitor, Ceramic, 1.5nF/6.3V, X7R, SMT, 0603
Capacitor, Ceramic, 220pF/6.3V, X7R, SMT, 0603
Schottky Diode SK53/30V, 5A, SMC
Inductor, CDRH8D43-100NC, 10µH
Active-Semi
FengHua, Neohm, Yageo
FengHua, Neohm, Yageo
FengHua, Neohm, Yageo
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Diodes
Sumida
1
1
1
1
1
2
1
1
1
1
1
U1
R1
R2
R3
C1
C4
C3
C2
C5 (OPTIONAL)
D1
L1
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