Datenblatt-Suchmaschine für elektronische Bauteile |
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LM3354-37 Datenblatt(PDF) 9 Page - National Semiconductor (TI) |
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LM3354-37 Datenblatt(HTML) 9 Page - National Semiconductor (TI) |
9 / 11 page Maximum Load Under Start-Up Due to the LM3354’s unique start-up sequence, it is not able to start up under all load conditions. Starting with 60 mA or less will allow the part to start correctly under any tempera- ture or input voltage conditions. After the output is in regu- lation, any load up to the maximum as specified in the Electrical Characteristics may be applied. Using a Power On Reset circuit, such as the LP3470, is recommended if greater start up loads are expected. Under certain conditions the LM3354 can start up with greater load currents without the use of a Power On Reset Circuit. Thermal Protection During output short circuit conditions, the LM3354 will draw high currents causing a rise in the junction temperature. On-chip thermal protection circuitry disables the charge pump action once the junction temperature exceeds the thermal trip point, and re-enables the charge pump when the junction temperature falls back to a safe operating point. Typical Application Circuits 20057333 FIGURE 2. Basic Buck/Boost Regulator 20057315 FIGURE 3. Low Output Noise and Ripple Buck/Boost Regulator www.national.com 9 |
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Ähnliche Beschreibung - LM3354-37 |
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