Layout and Bill of Materials (BOM)
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4.3
Output Ripple Waveform
Figure 4
shows the output voltage ripple. This measurement was taken with a very short ground clip and
20 MHZ bandwidth limiting.
Conditions: Input Voltage = 36 VDC Output Current = 2A Bandwidth Limit = 20 MHz
Trace 1: Output Ripple Voltage Volts/div = 50mV
Horizontal Resolution = 2 µsec/div
Figure 4. Output Voltage Ripple
5
Layout and Bill of Materials (BOM)
The Bill of Materials is shown in
Table 1
, including the manufacturer and part number.
Table 1. 5 V, 2.5A Demo Board Bill of Materials (BOM)
Item
Part Number
Description
Value
C
1
C4532X7R2A225M
CAPACITOR, CER, TDK
2.2µ, 100 V
C
2
C4532X7R2A225M
CAPACITOR, CER, TDK
2.2µ, 100 V
C
3
C0805C331G1GAC
CAPACITOR, CER, KEMET
330p, 100 V
C
4
C2012X7R2A103K
CAPACITOR, CER, TDK
0.01µ, 100 V
C
5
C2012X7R2A103K
CAPACITOR, CER, TDK
0.01µ, 100V
C
6
OPEN
NOT USED
C
7
C2012X7R2A223K
CAPACITOR, CER, TDK
0.022µ, 100 V
C
8
C2012X7R1C474M
CAPACITOR, CER, TDK
0.47µ, 16 V
C
9
C3225X7R1C226M
CAPACITOR, CER, TDK
22µ, 16 V
C
10
EEFHE0J151R
CAPACITOR, SP, PANASONIC
150µ, 6.3 V
C
11
C0805C331G1GAC
CAPACITOR, CER, KEMET
330p, 100 V
C
12
OPEN
NOT USED
D
1
CSHD6-100C
DIODE, 100V, CENTRAL
6CWQ10FN
DIODE, 100V, IR (D1-ALT)
L
1
DR127-330
INDUCTOR, COOPER
33 µH
R
1
OPEN
NOT USED
R
2
OPEN
NOT USED
R
3
CRCW08052102F
RESISTOR
21 k
Ω
R
4
CRCW08054992F
RESISTOR
49.9 k
Ω
R
5
CRCW08055111F
RESISTOR
5.11 k
Ω
R
6
CRCW08051651F
RESISTOR
1.65 k
Ω
R
7
CRCW2512100J
RESISTOR
10, 1W
U
1
LM5005
REGULATOR, Texas Instruments
4
AN-1748 LM5005 Evaluation Board
SNVA298A – November 2007 – Revised April 2013
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