Texas Instruments LM20124, User Manual

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C
IN
PVIN
SW
AGND
FB
PGOOD
R
FB1
R
FB2
C
OUT
EN
C
SS
SS/TRK
AVIN
C
F
C
C1
COMP
R
C1
V
IN
LM20124
L
R
F
VCC
C
VCC
V
OUT
PGND
P
GOOD
R
PG
EN
C
C2
C
BYP
Evaluation Board Schematic
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3 Evaluation Board Schematic
Figure 1. Evaluation Board Schematic
4 Bill of Materials
Designator Description Part Number Manufacturer Qty
U1 Synchronous Buck Regulator LM20124 Texas Instruments 1
C
IN
100 µF, 1210, X5R, 6.3V GRM32ER60J107ME20 Murata 1
C
BYP
1 µF, 0603, X5R, 6.3V GRM188R60J105KA01 Murata 1
C
OUT
100 µF, 1210, X5R, 6.3V GRM32ER60J107ME20 Murata 1
L 1 µH, 6 m Ω MSS1038-102NL Coilcraft 1
R
F
1 Ω , 0603 CRCW06031R0J-e3 Vishay-Dale 1
C
F
100 nF, 0603, X7R, 16V GRM188R71C104KA01 Murata 1
C
VCC
1 µF, 0603, X5R, 6.3V GRM188R60J105KA01 Murata 1
R
PG
10 k
Ω
, 0603 CRCW06031002F-e3 Vishay-Dale 1
R
C1
3.9 k Ω , 0603 CRCW06033901F-e3 Vishay-Dale 1
C
C1
3.3 nF, 0603, X7R, 25V VJ0603Y332KXXA Vishay-Vitramon 1
C
C2
OPEN OPEN N/A 0
C
SS
33nF, 0603, X7R, 25V VJ0603Y333KXXA Vishay-Vitramon 1
R
FB1
4.99 k
Ω
, 0603 CRCW06034991F-e3 Vishay-Dale 1
R
FB2
10 k Ω , 0603 CRCW06031002F-e3 Vishay-Dale 1
Test Points Test Points 160-1026-02-01-00 Cambion 7
4 AN-1654 LM20124 Evaluation Board SNVA252B – October 2007 – Revised May 2013
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