lm2738xsdx National Semiconductor Corporation, lm2738xsdx Datasheet - Page 22
lm2738xsdx
Manufacturer Part Number
lm2738xsdx
Description
Lm2738 550khz/1.6mhz 1.5a Step-down Dc-dc Switching Regulator
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM2738XSDX.pdf
(28 pages)
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LM2738Y Circuit Example 7
Part ID
U1
C1, Input Cap
C2, Output Cap
C3, Boost Cap
D1, Catch Diode
D2, Boost Diode
L1
R1
R2
R3
Part Value
1.5A Buck Regulator
10µF, 25V, X7R
47µF, 6.3V, X5R
0.1µF, 16V, X7R
0.34V
1V
12µH, 1.7A,
31.6kΩ, 1%
10.0 kΩ, 1%
100kΩ, 1%
F
@ 100mA Diode
F
Schottky 1.5A, 30V
FIGURE 16. LM2738Y (550kHz)
V
BOOST
Bill of Materials for
12V to 3.3V/1.5A
Derived from V
22
Part Number
LM2738Y
C3225X7R1E106M
C3216X5ROJ476M
C1005X7R1C104K
CRS08
BAT54WS
MSS7341-123NL
CRCW06033162F
CRCW06031002F
CRCW06031003F
OUT
Manufacturer
National Semiconductor
TDK
TDK
TDK
Toshiba
Vishay
Coilcraft
Vishay
Vishay
Vishay
30049193
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