Active-Semi
Figure 3:
ACT4050 1.8V/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 3:
ACT4050EV Bill of Materials (Apply for 1.8V Output Application)
ITEM
DESCRIPTION
MANUFACTURER
QTY
REFERENCE
1
2
3
4
5
6
7
8
9
10
11
IC, ACT4050
Resistor, 12.1kΩ , 1%, SMT, 0603
Resistor, 10kΩ, 1%, SMT, 0603
Resistor, 10kΩ, 5%, SMT, 0603
Capacitor, Ceramic, 10µF/35V, X7R, SMT,
1206
Active-Semi
FengHua, Neohm, Yageo
FengHua, Neohm, Yageo
FengHua, Neohm, Yageo
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
1
1
1
1
1
2
1
1
1
1
1
U1
R1
R2
R3
C1
C4
C3
C2
C5 (OPTIONAL)
D1
L1
Capacitor, Ceramic, 22µF/6.3V, X7R, SMT, Panasonic, Kemet, Murata,
1206
TDK, FengHua, Taiyo Yuden
Capacitor, Ceramic, 10nF/50V, X7R, SMT,
0603
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Capacitor, Ceramic, 2.7nF/6.3V, X7R, SMT, Panasonic, Kemet, Murata,
0603
TDK, FengHua, Taiyo Yuden
Capacitor, Ceramic, 220pF/6.3V, X7R,
SMT, 0603
Schottky Diode SK53/30V, 5A, SMC
Inductor, CDRH8D43-6R8NC, 6.8µH
Panasonic, Kemet, Murata,
TDK, FengHua, Taiyo Yuden
Diodes
Sumida
Innovative Power
TM
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