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BD6142AMUV
● Selection of external parts
Recommended external parts are as shown below.
When to use other parts than these, select the following equivalent parts.
? Coil
Datasheet
Value
4.7 μ H
4.7 μ H
10μH
10μH
10μH
Manufacturer
TDK
TOKO
TOKO
TDK
TOKO
Product number
LTF5022T-4R7N2R0-LC
A915AY-4R7M
A915AY-100M
LTF5022T-100M1R4-LC
B1047AS-100M
L
5.0
5.2
5.2
5.0
7.6
Size (mm)
W
5.2
5.2
5.2
5.2
7.6
H (MAX)
2.2
3.0
3.0
2.2
5.0
DC current
(mA)
2000
1870
1400
1400
2700
DCR
( ? )
0.073
0.045
0.140
0.140
0.053
? Capacitor
Value
10μF
4.7 μ F
2.2 μ F
2.2μF
2.2μF
2.2μF
0.1μF
0.1μF
0.022μF
470pF
Pressure
25V
25V
50V
50V
50V
10V
50V
10V
10V
50V
Manufacturer
MURATA
MURATA
TDK
MURATA
Panasonic
MURATA
MURATA
MURATA
MURATA
MURATA
Product number
GRM31CB31E106KA75
GRM319R61E475K
C3225JB1H225K
GRM31CB31H225K
ECJHVB1H225K
GRM188B31A225K
GRM188B31H104K
GRM188B31A104K
GRM155B31H223K
GRM155B11H471K
L
3.2
3.2
3.2
3.2
3.2
1.6
1.6
1.6
1.0
1.0
Size
W
1.6
1.6
2.5
1.6
1.6
0.8
0.8
0.8
0.5
0.5
H
1.6
0.85±0.1
2.0±0.2
1.6
0.85
0.8
0.8
0.8
0.5
0.5
? Resistor
Value
Tolerance Manufacturer
Product number
L
Size (mm)
W
H
2.2M ?
91k ?
75k ?
68k ?
56k ?
36k ?
10k ?
1k ?
330 ?
±1.0%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±1.0%
±0.5%
±0.5%
ROHM
ROHM
ROHM
ROHM
ROHM
ROHM
ROHM
ROHM
ROHM
MCR03PZPZFX2204
MCR03PZPZD9102
MCR03PZPZD7502
MCR03PZPZD6802
MCR03PZPZD5602
MCR03PZPZD3602
MCR03PZPZF103
MCR03PZPZD1002
MCR03PZPZD3300
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
? SBD
Pressure
60V
Manufacturer
ROHM
Product number
RB160M-60
L
3.5
Size (mm)
W
1.6
H
0.8
The coil is the part that is most influential to efficiency. Select the coil whose direct current resistor (DCR) and current -
inductance characteristic is excellent. BD6142AMUV is designed for the inductance value of 10μH. Don’t use the
inductance value less than 3.3μH. Select a capacitor of ceramic type with excellent frequency and temperature
characteristics.
Further, select Capacitor to be used with small direct current resistance.
● About heat loss
In heat design, operate the DC/DC converter in the following condition.
(The following temperature is a guarantee temperature, so consider the margin.)
1. Ambient temperature Ta must be less than 85 ℃ .
2. The loss of IC must be less than dissipation Pd.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
24/30
TSZ02201-0G3G0C400340-1-2
03.Dec.2012 Rev.001
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