LM2593HVEVAL National Semiconductor, LM2593HVEVAL Datasheet - Page 19

• Manufacturer Part Number: LM2593HVEVAL
• Description: BOARD EVALUATION LM2593
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r

Specifications of LM2593HVEVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 12V
• Current - Output: 2A
• Voltage - Input: 4.5 ~ 60V
• Regulator Topology: Buck
• Frequency - Switching: 150kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2593
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

Application Information
Layout Suggestions
As in any switching regulator, layout is very important. Rap-
idly switching currents associated with wiring inductance can
generate voltage transients which can cause problems. For
minimal inductance and ground loops, with reference to
Figure 1 , the wires indicated by heavy lines should be wide
printed circuit traces and should be kept as short as
possible. For best results, external components should be
located as close to the switcher lC as possible using ground
plane construction or single point grounding.
FIGURE 15. Junction Temperature Rise, TO-263
(Continued)
19
If open core inductors are used, special care must be
taken as to the location and positioning of this type of induc-
tor. Allowing the inductor flux to intersect sensitive feedback,
lC groundpath and C
When using the adjustable version, special care must be
taken as to the location of the feedback resistors and the
associated wiring. Physically locate both resistors near the
IC, and route the wiring away from the inductor, especially an
open core type of inductor.
10133338
OUT
wiring can cause problems.
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