SFTB NSC [National Semiconductor], SFTB Datasheet - Page 17

• Manufacturer Part Number: SFTB
• Description: Thin SOT23 1A Load Step-Down DC-DC Regulator
• Manufacturer: NSC [National Semiconductor]

LM2734Z Design Examples
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
FIGURE 12. V
Part Value
1A Buck Regulator
10µF, 25V, X7R
22µF, 16V, X5R
0.01µF, 16V, X7R
0.4V
1V
4.3V 350mw SOT-23
2.2µH, 1.8A
102kΩ, 1%
10.2kΩ, 1%
100kΩ, 1%
F
F
@
Schottky 1A, 30VR
50mA Diode
BOOST
Bill of Materials for Figure 12
(Continued)
Derived from Series Zener Diode (V
15V to 9V/1A
17
Part Number
LM2734ZX
C3225X7R1E106M
C3216X5R1C226M
C1005X7R1C103K
SS1P3L
1N4148W
BZX84C4V3
ME3220–222MX
CRCW06031023F
CRCW06031022F
CRCW06031003F
OUT
)
Manufacturer
National Semiconductor
TDK
TDK
TDK
Vishay
Diodes, Inc.
Diodes, Inc.
Coilcraft
Vishay
Vishay
Vishay
20130350
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