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MP2234 データシート(PDF) 12 Page - Monolithic Power Systems |
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MP2234 データシート(HTML) 12 Page - Monolithic Power Systems |
12 / 21 page MP2234 – SYNCHRONOUS STEP-DOWN CONVERTER MP2234 Rev. 1.0 www.MonolithicPower.com 12 5/16/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. Figure 5: Internal Bootstrap Charging Circuit Startup and Shutdown If both VIN and VEN exceed their respective thresholds, the chip starts. The reference block starts first, generating stable reference voltage and currents, and then the internal regulator is enabled. The regulator provides a stable supply for the remaining circuitries. Three events can shut down the chip: VEN low, VIN low, and thermal shutdown. During the shutdown procedure, the signaling path is first blocked to avoid any fault triggering. The COMP voltage and the internal supply rail are then pulled down. The floating driver is not subject to this shutdown command. |
同様の部品番号 - MP2234 |
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同様の説明 - MP2234 |
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