AME5140AEQVADJZ3

AME, Inc. AME5140 n General Description 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 current limiting and thermal shutdown. Internal compensation simplifies and reduces component count. 1.6 MHz Boost Converter With 30V Internal FET Switch n Typical Application L/6.8µH VIN 4.2V EN R3 51K EN GND C1 4.7µF GND R2 13.3K CF 680pF C2 22µF D1 IN SW VOUT 5V 800mA R1 43K AME5140 FB Figure 1. 4.2V to 5V Boost Converter n Features l 30V DMOS FET Switch l 1.6 MHz Switching Frequency l Low RDSON DMOS FET l Switch Current Up to 1.8A l W ide Input Voltage Range (2.7V-5.5V) l Low Shutdown Current (