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AME5140AEQAADJY Datasheet(PDF) 1 Page - Analog Microelectronics |
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AME5140AEQAADJY Datasheet(HTML) 1 Page - Analog Microelectronics |
1 / 22 page AME, Inc. 1 AME5140 1.6 MHz Boost Converter With 30V Internal FET Switch Rev.G.01 n Typical Application l 30V DMOS FET Switch l 1.6 MHz Switching Frequency l Low R DSON DMOS FET l Switch Current Up to 1.8A l Wide Input Voltage Range (2.7V-5.5V) l Low Shutdown Current (<1 µA) l SOT-25/TSOT-25, DFN-8(3mmx3mmx0.75mm) & MSOP-8 Packages l Uses Tiny Capacitors and Inductor l Cycle-by-Cycle Current Limiting l All AME's Lead Free Products Meet RoHS Standards The AME5140 switching regulator is current-mode boost converters operating at fixed frequency of 1.6 MHz. The use of SOT-25/TSOT-25, DFN-8(3mmx3mmx 0.75mm) & MSOP-8 packages, made possible by the minimal power loss of the internal 1.8A switch, and use of small inductor and capacitors result in the industry's highest power density. The 30V internal switch makes these solutions perfect for boosting to voltages up to 30V. These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life. Protection is provided through cycle-by-cycle cur- rent limiting and thermal shutdown. Internal compensa- tion simplifies and reduces component count. l White LED Current Source l PDA's and Palm-Top Computers l Digital Cameras l Portable Phones and Games l Local Boost Regulator n General Description n Features n Applications L/6.8 µH D1 GND AME5140 GND IN EN SW FB EN C1 4.7 µF R2 13.3K R1 43K CF 680pF C2 22 µF 5V 800mA V OUT R3 51K V IN 4.2V Figure 1. 4.2V to 5V Boost Converter L/10 µH D1 GND AME5140 GND IN EN SW FB EN C1 4.7 µF R2 13.3K R1 117K CF 220pF C2 4.7 µF 12V 400mA V OUT R3 51K V IN 5V Figure 2. 5V to 12V Boost Converter L/10 µH D1 GND AME5140 GND IN EN SW FB EN C1 4.7 µF R2 13.3K R1 183K CF 160pF C2 4.7 µF 18V 250mA V OUT R3 51K V IN 5V Figure 3. 5V to 18V Boost Converter |
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