Datasheet

LM2734
V
IN
V
IN
EN
BOOST
SW
FB
GND
V
OUT
C3
L1
C2
R1
R2
D1
D2
ON
OFF
D3
C4
R4
C1
R3
LM2734
www.ti.com SNVS288I –SEPTEMBER 2004–REVISED APRIIL 2013
Figure 29. LM2734X (1.6MHz)
V
BOOST
Derived from V
SHUNT
18V to 1.5V/1A
Table 3. Bill of Materials for Figure 29
Part ID Part Value Part Number Manufacturer
U1 1A Buck Regulator LM2734X Texas Instruments
C1, Input Cap 10µF, 25V, X7R C3225X7R1E106M TDK
C2, Output Cap 22µF, 6.3V, X5R C3216X5ROJ226M TDK
C3, Boost Cap 0.01µF, 16V, X7R C1005X7R1C103K TDK
C4, Shunt Cap 0.1µF, 6.3V, X5R C1005X5R0J104K TDK
D1, Catch Diode 0.4V
F
Schottky 1A, 30VR SS1P3L Vishay
D2, Boost Diode 1V
F
@ 50mA Diode 1N4148W Diodes, Inc.
D3, Zener Diode 5.1V 250Mw SOT BZX84C5V1 Vishay
L1 6.8µH, 1.6A, SLF7032T-6R8M1R6 TDK
R1 8.87kΩ, 1% CRCW06038871F Vishay
R2 10.2kΩ, 1% CRCW06031022F Vishay
R3 100kΩ, 1% CRCW06031003F Vishay
R4 4.12kΩ, 1% CRCW06034121F Vishay
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