LM20333EVAL National Semiconductor, LM20333EVAL Datasheet
LM20333EVAL
Specifications of LM20333EVAL
Related parts for LM20333EVAL
LM20333EVAL Summary of contents
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... The dual function soft-start/tracking pin can be used to control the startup response of the LM20333, and the precision en- able pin can be used to easily sequence the LM20333 in applications with sequencing requirements. Evaluation Board Schematic © 2008 National Semiconductor Corporation National Semiconductor Application Note 1791 Dennis Hudgins October 1, 2008 The LM20333 evaluation board has been optimized to work from 4 ...
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Powering and Loading Considerations Read this entire page prior to attempting to power the evalu- ation board. QUICK SETUP PROCEDURE Step 1: Set the input source current limit to 3A. Turn off the input source. Connect the positive output of ...
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Performance Characteristics EFFICIENCY PLOTS Figure 1 shows the conversion efficiency versus output cur- rent for a 5V and 12V input voltage. FIGURE 1. TURN-ON WAVEFORM When applying power to the LM20333 evaluation board a soft-start sequence occurs. Figure 2 shows ...
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Bill of Materials The Bill of Materials is shown below, including the manufacturer and part number. DESIGNATOR QTY PART NUMBER C1 1 GRM32ER61E226KE15 C2 GRM21BR61E475KA12L C5 1 GRM188R71A105KA61D C4 C1608X7R1H104K C7 1 C1608C0G1H100J C8 1 C1608C0G1H152J ...
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Component Selection This section provides a walk-through of the design process of the LM20333 evaluation board. Unless otherwise indicated all equations assume units of amps (A) for current, farads (F) for capacitance, henries (H) for inductance, and volts (V) for ...
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For stability purposes the device should be compensated for the maximum output current expected in the application. OPTIONAL COMPENSATION CAPACITOR second compensation capacitor C7 can be used in some designs to improve noise immunity for low duty cycle ...
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PCB Layout Top Layer Mid Layer1 30051330 30051331 7 30051332 Mid Layer2 30051333 Bottom Layer www.national.com ...
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