The PTH04070W is a highly integrated, low-cost switching regulator module that delivers up to 3A of output current.Occupying less PCB area than a standard TO-220 linear regulator IC, the PTH04070W provides output current at a much higher efficiency and with much less power dissipation,there by eliminating the need for a heat sink.Their small size(0.5 ×0.4in), high efficiency,and low cost makes these modules attractive for avariety of applications.
The input voltage range of the PTH04070W is from 3V to 5.5V,allowing operation from either a 3.3-V or 5-V input bus.Using state-of-the-art switched-mode power-conversion technology, the PTH04070W can step down to voltages as low as 0.9V from a 5-V input bus,with typically less than 1W of power dissipation.The output voltage can be adjusted to any voltage over the range, 0.9V to 3.6V,using a single external resistor. Operating features include an undervoltage lockout (UVLO), on/off inhibit, output overcurrent protection, and overtemperature protection.Target applications include telecommunications, test and measurement applications, and high-end consumer products.The modules are available in both through-hole and surface-mount package options,including tape and reel.
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