Texas Instruments Hysteretic PFET Buck Controller with Enable Pin LM3489EVAL/NOPB LM3489EVAL/NOPB Datenbogen
Produktcode
LM3489EVAL/NOPB
Demonstration Board PCB Layout
Table 1. Bill of Materials (BOM)
Label
Description
Manufacturer
CIN1
Tantalum Capacitor 22µF 35V EEJL1VD226R
Panasonic
Tantalum Capacitor 22µF 35V 293D226X0035E
Vishay
CIN2
0603 Ceramic Chip Capacitor 0.1µF 50V ECJ1VB1H104K
Panasonic
COUT
Low ESR Capacitor, POSCAP 100µF 6.3V 6TPC100M
Sanyo
CADJ
0603 Ceramic Chip 1nF 50V ECJ1VB1H102K
Panasonic
0603 Ceramic Chip 1nF 50V VJ0805A102KXAA
Vishay
Cff
0805 Ceramic Chip 100pF 50V ECJ1VC1H101J
Panasonic
0805 Ceramic Chip 100pF 50V VJ0805A101KXAA
Vishay
D1
Schottky Diode 1A 40V MBRS140T3
ON Semiconductor
Schottky Diode 1A 40V CMSH1-40
Central Semi
L
Inductor 22µH LQH66SN220M03L
Murata
M1
P-channel MOSFET 60V FDC5614P
Fairchild
R1
0805 Chip Resistor 33k
Ω
CRCW08053302F
Vishay
0805 Chip Resistor 33k
Ω
ERJ3GEYF333
Panasonic
R2
0805 Chip Resistor 20k
Ω
CRCW08052002F
Vishay
0805 Chip Resistor 20k
Ω
ERJ3GEYF203
Panasonic
RADJ
0603 Chip Resistor 24k
Ω
CRCW08052402F
Vishay
0603 Chip Resistor 24k
Ω
ERJ3GEYF243
Panasonic
RIS
0603 Chip Resistor 270
Ω
CRCW08052700F
Vishay
0603 Chip Resistor 270
Ω
ERJ3GEYF271
Panasonic
U1
Buck Controller With ENABLE PIN LM3489
Texas Instruments
3
Demonstration Board PCB Layout
Figure 2. LM3489 Demonstration Board PCB Top Overlay
2
AN-1471 LM3489 Demonstration Board
SNVA160A – May 2006 – Revised April 2013
Copyright © 2006–2013, Texas Instruments Incorporated