LM2594M-12 National Semiconductor, LM2594M-12 Datasheet - Page 26

• Manufacturer Part Number: LM2594M-12
• Description: IC, STEP-DOWN REGULATOR, 8-SOIC
• Manufacturer: National Semiconductor

Specifications of LM2594M-12

• Primary Input Voltage: 25V
• No. Of Outputs: 1
• Output Voltage: 12V
• Output Current: 500mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4.5V To 40V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Application Information
C
C
D1 —
L1 —
C
C
D1 —
L1 —
R1 —
R
C
IN
OUT
IN
OUT
2
FF
—
—
—
—
—
—
10 µF, 35V, Solid Tantalum AVX, “TPS series”
100 µF, 10V Solid Tantalum AVX, “TPS series”
1A, 40V Schottky Rectifier, surface mount
10 µF, 35V, Solid Tantalum AVX, “TPS series”
100 µF, 10V Solid Tantalum AVX, “TPS series”
100 µH, L20, Coilcraft DO33
1 k , 1%
Use formula in Design Procedure
See Figure 3 .
1A, 40V Schottky Rectifier, surface mount
100 µH, L20, Coilcraft DO33
TYPICAL SURFACE MOUNT PC BOARD LAYOUT, ADJUSTABLE OUTPUT (2X SIZE)
TYPICAL SURFACE MOUNT PC BOARD LAYOUT, FIXED OUTPUT (2X SIZE)
(Continued)
FIGURE 29. PC Board Layout
26
DS012439-44
DS012439-45