4
dc2251af
DEMO MANUAL DC2251A
Quick start proceDure
Figure 5. DC2251A Output Noise Spectrum, V
IN
= 12V, V
OUT
= 5V, I
OUT
= 2.5A, f
SW
= 1MHz
parts List
ITEM
QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
Required Circuit Components
1
1
C1
CAP., X5R, 47µF, 10V, 20%, 0805
MURATA, GRM21BR61A476ME15L
2
1
C2
CAP., X5R, 4.7µF, 50V, 10%, 0805
MURATA, GRM21BR61H475KE51L
3
1
C3
CAP., X7R, 0.1µF, 16V, 10%, 0603
MURATA, GRM188R71C104KA01D
4
1
C5
CAP., X5R, 10µF, 25V, 20%, 0603
MURATA, GRM188R61E106MA73D
5
1
C10
CAP., X7R, 0.1µF, 50V, 10%, 0402
TDK, CGA2B3X7R1H104K050BB
6
2
R1, R5
RES., CHIP, 100k, 1/10W, 1%, 0603
VISHAY, CRCW0603100KFKEA
7
1
R2
RES., CHIP, 60.4k, 1/10W, 1%, 0603
VISHAY, CRCW060360K4FKEA
8
1
R3
RES., CHIP, 41.2k, 1/10W, 1%, 0603
VISHAY, CRCW060341K2FKEA
9
1
U1
IC., BGA, 36L, 6.25mm
×
6.25mm
×
2.32mm
LINEAR TECH., LTM8065EY#PBF
Additional Demo Board Circuit Components
1
0
C4, C11 (OPT)
CAP., 0603
2
0
C6 (OPT)
CAP., X7R, 4.7µF, 50V, 10%, 1206
3
0
C8 (OPT)
CAP., X7R, 0.1µF, 50V, 10%, 0402
4
1
C9
CAP., ALUM, 22µF, 63V, 20%
SUN ELECTRONIC INDUSTRIES CORP., 63CE22BS
5
0
L1 (OPT)
IND, 2.2µH, 4.45mm
×
4.06mm
WURTH ELEKTRONIK, 74437324022
6
1
R4
RES., CHIP, 0, 1/10W, 0603
VISHAY, CRCW06030000Z0EA
7
0
R6, R7, R8 (OPT)
RES., 0603
Hardware: For Demo Board Only
1
10
E1-E6, E8-E11
TESTPOINT, TURRET, 0.094" PBF
MILL-MAX, 2501-2-00-80-00-00-07-0
2
0
E7 (OPT)
TESTPOINT, TURRET, 0.094" PBF
MILL-MAX, 2501-2-00-80-00-00-07-0
3
1
JP1
HEADER 3 PIN 0.079 SINGLE ROW
WURTH ELEKTRONIK, 62000311121
4
1
XJP1
SHUNT, 0.079" CENTER
WURTH ELEKTRONIK, 60800213421
5
4
MH1-MH4
STAND-OFF, NYLON, 0.375" SNAP ON
KEYSTONE, 8832
FREQUENCY (MHz)
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
–120
–100
–80
–60
–40
–20
0
INTENSIT
Y (dBm)
DC2251A F05
