Datasheet

VIN
1
PG
1
PG
2
SW
1
SW
2
FB
1
FB
2
PGND
1
, PGND
2
,
AGND, DAP
LM26420
V
OUT1
1.2V/2A
Vin
3V to 5.5V
V
OUT2
2.5V/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 1
Figure 45. LM26420X (2.2MHz): V
IN
= 5V, V
OUT1
= 1.2V @ 2.0A and V
OUT2
= 2.5V @ 2.0A
Table 2. 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 33µF, 6.3V, 1206, X5R TDK C3216X5R0J336M
C2 22µF, 6.3V, 1206, X5R TDK C3216X5R0J226M
C5 0.47µF, 10V, 0805, X7R Vishay VJ0805Y474KXQCW1BC
L1 1.0µH, 7.9A TDK RLF7030T-1R0M6R4
L2 1.5µH, 6.5A TDK RLF7030T-1R5M6R1
R3, R4 10.0kΩ, 0603, 1% Vishay CRCW060310K0F
R1 4.99kΩ, 0603, 1% Vishay CRCW06034K99F
R5, R6 49.9kΩ, 0603, 1% Vishay CRCW060649K9F
R2 21.5kΩ, 0603, 1% Vishay CRCW060321K5F
R7 4.99Ω, 0603, 1% Vishay CRCW06034R99F
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