Datasheet

LM2734
V
IN
V
IN
EN
BOOST
SW
FB
GND
V
OUT
C3
L1
C2
R1
R2
D1
ON
OFF
D2
D3
C1
R3
LM2734
SNVS288I –SEPTEMBER 2004–REVISED APRIIL 2013 www.ti.com
Figure 36. LM2734Y (550kHz)
V
BOOST
Derived from Series Zener Diode (V
OUT
)
15V to 9V/1A
Table 10. Bill of Materials for Figure 36
Part ID Part Value Part Number Manufacturer
U1 1A Buck Regulator LM2734Y Texas Instruments
C1, Input Cap 10µF, 25V, X7R C3225X7R1E106M TDK
C2, Output Cap 22µF, 16V, X5R C3216X5R1C226M TDK
C3, Boost Cap 0.01µF, 16V, X7R C1005X7R1C103K 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 4.3V 350mw SOT BZX84C4V3 Diodes, Inc.
L1 22µH, 1.4A, SLF7045T-220M1R3-1PF TDK
R1 102kΩ, 1% CRCW06031023F Vishay
R2 10.2kΩ, 1% CRCW06031022F Vishay
R3 100kΩ, 1% CRCW06031003F Vishay
24 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated
Product Folder Links: LM2734