LM2594M-3.3/NOPB National Semiconductor, LM2594M-3.3/NOPB Datasheet - Page 26

• Manufacturer Part Number: LM2594M-3.3/NOPB
• Description: IC REG SIMPLE SWITCHER 8-SOIC
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2594M-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 500mA
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 500mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Filter Terminals: SMD
• Input Voltage Primary Max: 40V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2594M-3.3; *LM2594M-3.3/NOPB; LM2594M-3.3

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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