Datasheet

PVIN
AVIN
EN
AGND PGND
FB
SW
LM2854
V
IN
V
OUT
SS
C
IN
L
O
C
O
R
FB1
R
COMP
C
COMP
R
FB2
C
SS
C
F
R
F
U1
LM2854
SNVS560C –MARCH 2008–REVISED APRIL 2013 www.ti.com
Table 5. LM2854 500kHz Bill of Materials, V
IN
= 5V, V
OUT
= 3.3V, I
OUT(MAX)
= 4A, Optimized for Efficiency
Ref Des Description Case Size Manufacturer Manufacturer P/N
U1 Synchronous Buck HTSSOP-16 Texas Instruments LM2854MHX-500
Regulator
C
IN
47 µF, X5R, 10V 1210 TDK C3225X5R1A476M
C
O
100 µF, X5R, 6.3V 1210 TDK C3225X5R0J107M
L
O
1.5 µH, 9.7 mΩ, 10A 7.1 x 6.5 x 3.0 mm TDK SPM6530T-1R5M100
R
FB1
249 kΩ 0603 Vishay Dale CRCW06032493F-e3
R
FB2
80.6 kΩ 0603 Vishay Dale CRCW060328062F-e3
R
COMP
1.0 kΩ 0603 Vishay Dale CRCW06031001F-e3
R
F
1.0Ω 0603 Vishay Dale CRCW06031R0F-e3
C
COMP
33 pF, ±5%, C0G, 50V 0603 TDK C1608C0G1H330J
C
SS
10 nF, ±10%, X7R, 16V 0603 Murata GRM188R71C103KA01
C
F
1.0 µF, ±10%, X7R, 10V 0603 Murata GRM188R71A105KA61
Table 6. LM2854 1 MHz Bill of Materials, V
IN
= 3.3V to 5V, V
OUT
= 2.5V, I
OUT (MAX)
= 4A, Optimized for
Electrolytic Input and Output Capacitance
Ref Des Description Case Size Manufacturer Manufacturer P/N
U1 Synchronous Buck Regulator HTSSOP-16 Texas Instruments LM2854MHX-1000
C
IN
150 µF, 6.3V, 18 mΩ C2, 6.0 x 3.2 x 1.8 mm Sanyo 6TPE150MIC2
C
O
330 µF, 6.3V, 18 mΩ D3L, 7.3 x 4.3 x 2.8 mm Sanyo 6TPE330MIL
L
O
2.2 µH, 16 mΩ, 7A 6.47 x 6.86 x 3.00 mm Vishay Dale IHLP2525CZER2R2M11
R
FB1
100 kΩ 0603 Vishay Dale CRCW06031003F-e3
R
FB2
47.5 kΩ 0603 Vishay Dale CRCW060324752F-e3
R
COMP
15 kΩ 0603 Vishay Dale CRCW06031502F-e3
R
F
1.0Ω 0603 Vishay Dale CRCW06031R0F-e3
C
COMP
330 pF, ±5%, C0G, 50V 0603 TDK C1608C0G1H331J
C
SS
10 nF, ±10%, X7R, 16V 0603 Murata GRM188R71C103KA01
C
F
1.0 µF,±10%, X7R, 10V 0603 Murata GRM188R71A105KA61
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