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MP62040DQFU-1 Datasheet(PDF) 7 Page - Monolithic Power Systems |
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MP62040DQFU-1 Datasheet(HTML) 7 Page - Monolithic Power Systems |
7 / 8 page MP62040-1/MP62041-1 1.7V- 5.5V, 2A POWER DISTRIBUTION SWITCH MP62040-1/MP62041-1 Rev.1.01 www.MonolithicPower.com 7 7/18/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. FUNCTION BLOCK DIAGRAM OUT VIN GND IN LOAD EN* Level Shift Slew Rate Control and Output Discharge (*: EN is active high for MP62041-1) Figure 2―Function Block Diagram DETAILED DESCRIPTION The MP62040-1/MP62041-1 Power Distribution Switch is designed for high-side load switch. The switch operates from 1.7V to 5.5V nominal input voltage and can handle up to 2A continuous load. Enable The logic pin disables the switch to reduce overall supply current .Once the EN pin reaches logic enable threshold, the MP62040-1/MP62041-1 is enabled and the supply current is very small, only 2µA. Output Discharge The part includes a discharge function that provides a resistive discharge path for the external output capacitor. This function allows the device to quickly discharge the output voltage when it’s disabled. APPLICATION INFORMATION Power-Supply Considerations Over 10μF capacitor between IN and GND is recommended. This precaution reduces power- supply transients that may cause ringing on the input. In order to achieve smaller output load transient ripple, placing a high-value electrolytic capacitor on the output pin(s) is recommended when the load is heavy. |
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