Recommended External Components
Table 1. Recommended External Components for 5 A Maximum Load Curren t
Component
L1
C OUT
C IN
C IN1
Description
470 nH Nominal
10 ? F, 6.3 V, X5R, 0805, 2 Pieces
10 ? F, 6.3 V, X5R, 0805
10 nF, 25 V, X7R, 0402
Vendor
See Table 2
GRM21BR60J106M (Murata)
C2012X5R0J106M (TDK)
Any
Parameter
L
C
C
Typical
0.47
10
10
Unit
? H
? F
nF
Table 2. Recommended Inductors
Component Dimensions
Manufacturer
Part#
L (nH)
DCR (m ? ) I MAXDC
(1)
L
W
H
Bourns
Bourns
Coilcraft
Inter-Technical (2)
TDK
Vishay
SRP5012-R47M
SRP4012-R47M
XPL4020-471ML
SC2511-R47M
VLC5020T-R47M
IHLP1616ABERR47M01
470
470
470
470
470
470
19
20
19
2.6
15
20
6.0
5.5
7.2
16.0
5.4
5.0
5.1
4.6
4.2
6.5
5.0
4.5
4.5
4.0
4.2
6.5
5.0
4.1
1.2
1.2
2.0
3.0
2.0
1.2
Notes:
1. I MAXDC is the lesser current to produce 40 o C temperature rise or 30% inductance roll-off.
2. Inductor used for efficiency and temperature rise measurements.
? 2011 Fairchild Semiconductor Corporation
FAN53540 ? Rev. 1.0.3
2
www.fairchildsemi.com
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