ACT4060A
Figure 4:
ACT4060A 5V/2A Output Application
Rev 0, 28-Apr-09
V
IN
Up to 24V
BS
IN
C3
L1
ENABLE
EN
G
IC1
ACT4060A
COMP
SW
R1
V
OUT
FB
+
C1
C2
C5
(OPTIONAL)
R2
D1
C4
R3
: D1 is a 40V, 3A Schottky diode with low forward voltage, an IR 30BQ040 or SK34 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 capaci-
tance characteristics in both operating temperature and frequency compared to ceramic, polymer, and low ESR tantalum capacitors.
Table 4:
ACT4060A Bill of Materials (Apply for 5V Output Application)
ITEM
1
2
3
4
5
6
7
8
9
10
11
IC, ACT4060A
15µH ± 20%, I
SAT
=2.7A, I
DC
= 2.4A@
ΔT
= 40°C
Schottky Diode SK34/40V, 3A, SMB
Schottky Diode B340C/40V, 3A, SMB
Ceramic cap 10µF/35V, X7R, 1210
Ceramic cap 2.2nF/6.3V, X7R, 0603
Ceramic cap 10nF/50V, X7R, 0603
Ceramic cap 22µF/10V, X7R, 1210
SP cap 47µF/6.3V, 50mΩ
Ceramic cap 220pF/6.3V, X7R, 0603
Resistor, 28.7kΩ, 1/16W, 1%, 0603
Resistor, 10kΩ, 1/16W, 1%, 0603
Resistor, 15kΩ, 1/16W, 5%, 0603
FengHua, Neohm, Yageo
1
DESCRIPTION
MANUFACTURER
Active-Semi
Taiyo Yuden NR 8040T 150M
Transys electronics
Diodes Inc
Murata, TDK, Taiyo Yuden
Murata, TDK, Taiyo Yuden
Murata, TDK, Taiyo Yuden
Murata, TDK, Taiyo Yuden
Kemet, Panasonic
Murata, TDK, Taiyo Yuden
QTY
1
1
1
1
1
1
1
1
REFERENCE
U1
L1
D1
C1
C2
C3
C4
C5 (OPTIONAL)
R1
R2
R3
15µH ± 10%, I
SAT
= 2.88A, I
DC
= 2.47A@
ΔT
= 40°C Wurth Electronik 744776115
Innovative Power
TM
-8-
www.active-semi.com
Copyright © 2009 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
