lm2738xsdx National Semiconductor Corporation, lm2738xsdx Datasheet - Page 20

• Manufacturer Part Number: lm2738xsdx
• Description: Lm2738 550khz/1.6mhz 1.5a Step-down Dc-dc Switching Regulator
• Manufacturer: National Semiconductor Corporation

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LM2738X Circuit Example 5
Part ID
U1
C1, Input Cap
C2, Output Cap
C3, Boost Cap
D1, Catch Diode
D2, Boost Diode
D3, Zener Diode
L1
R1
R2
R3
Part Value
1.5A Buck Regulator
10µF, 25V, X7R
22µF, 16V, X5R
0.1µF, 16V, X7R
0.34V
1V
4.3V 350mw SOT-23
6.2µH, 2.5A
102kΩ, 1%
10.2kΩ, 1%
100kΩ, 1%
F
@ 100mA Diode
F
V
Schottky 1.5A, 30V
BOOST
Derived from Series Zener Diode (V
FIGURE 14. LM2738X (1.6MHz)
Bill of Materials for
15V to 9V/1.5A
20
Part Number
LM2738X
C3225X7R1E106M
C3216X5R1C226M
C1005X7R1C104K
CRS08
BAT54WS
BZX84C4V3
MSS7341-622NL
CRCW06031023F
CRCW06031022F
CRCW06031003F
OUT
)
Manufacturer
National Semiconductor
TDK
TDK
TDK
Toshiba
Diodes, Inc.
Diodes, Inc.
Coilcraft
Vishay
Vishay
Vishay
30049150