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XL4015 Step-Down Buck Power module operates on 180 kHz but still provide smaller sized filter components and is capable to drive a load of 5A with load regulation
TF Card (test 16G) play mode
Ergonomic design
Switched Mode Power Supply Signal Isolation
7% of rdg +2 digits) Frequency Range 40 to 1kHz Max
74LS157 Quad 2-Input Multiplexer IC (74157 IC) DIP-16 Package Orange Indicator XL4015 Step-Down Buck Power module74LS Series ICs are High Speed Logic gates, ideally a little faster than 74HC series but more power consumption is required. They are implemented with a Low Power Schottky diode technology to achieve high switching speed. 74LS157 is one of the 74LS series IC. 74LS157 ICs contain four 2 Input Multiplexer. This device has a common active high select input pin (A' B) and active low enable pin (G). When G is HIGH, all of the outputs (Y) are forced LOW
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