LM2674LD-12 NSC [National Semiconductor], LM2674LD-12 Datasheet - Page 22
LM2674LD-12
Manufacturer Part Number
LM2674LD-12
Description
SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
Manufacturer
NSC [National Semiconductor]
Datasheet
1.LM2674LD-12.pdf
(26 pages)
- Current page: 22 of 26
- Download datasheet (942Kb)
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Application Information
TYPICAL SURFACE MOUNT PC BOARD LAYOUT,
FIXED OUTPUT (4X SIZE)
C
C
D1 - 1A, 40V Schottky Rectifier, Surface Mount
L1 - 47 µH, L13, Coilcraft DO3308
C
TYPICAL SURFACE MOUNT PC BOARD LAYOUT,
ADJUSTABLE OUTPUT (4X SIZE)
C
C
D1 - 1A, 40V Schottky Rectifier, Surface Mount
L1 - 100 µH, L20, Coilcraft DO3316
C
R1 - 1k, 1%
R2 - Use formula in Design Procedure
IN
OUT
B
IN
OUT
B
- 0.01 µF, 50V, Ceramic
- 0.01 µF, 50V, Ceramic
- 15 µF, 25V, Solid Tantalum Sprague, “594D series”
- 15 µF, 50V, Solid Tantalum Sprague, “594D series”
- 68 µF, 10V, Solid Tantalum Sprague, “594D series”
- 33 µF, 25V, Solid Tantalum Sprague, “594D series”
FIGURE 18. PC Board Layout
10004137
22
10004136
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