Datasheet

VIN
1
PG
1
PG
2
SW
1
SW
2
FB
1
FB
2
PGND
1
, PGND
2
,
AGND, DAP
LM26420
V
OUT1
3.3V/2A
Vin
4.5V to
5.5V
V
OUT2
1.8V/2A
VIN
c
VIN
2
EN
2
EN
1
C
3
C
4
C
2
C
1
L
1
L
2
C
5
R
7
R
6
R
5
R
3
R
1
R
2
R
4
LM26420
www.ti.com SNVS579F –FEBRUARY 2009–REVISED MARCH 2013
LM26420X Design Example 3
Figure 47. LM26420X (2.2MHz): V
IN
= 5V, V
OUT1
= 3.3V @ 2.0A and V
OUT2
= 1.8V @ 2.0A
Table 4. Bill of Materials
Part ID Part Value Manufacturer Part Number
U1 2A Buck Regulator TI LM26420X
C3, C4 15µF, 6.3V, 1206, X5R TDK C3216X5R0J156M
C1 22µF, 6.3V, 1206, X5R TDK C3216X5R0J226M
C2 33µF, 6.3V, 1206, X5R TDK C3216X5R0J336M
C5 0.47µF, 10V, 0805, X7R Vishay VJ0805Y474KXQCW1BC
L1, L2 1.0µH, 7.9A TDK RLF7030T-1R0M6R4
R3, R4 10.0kΩ, 0603, 1% Vishay CRCW060310K0F
R2 12.7kΩ, 0603, 1% Vishay CRCW060312K7F
R5, R6 49.9kΩ, 0603, 1% Vishay CRCW060649K9F
R1 31.6kΩ, 0603, 1% Vishay CRCW060331K6F
R7 4.99Ω, 0603, 1% Vishay CRCW06034R99F
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