2pcs Micro DC-DC 78xx Buck Converter-Regulator Power Module, 3.3V/5V/9V/12V, 1A

Description: Up for sale is a pack of two (2) new Micro DC-DC 78xx Replacement DC-DC Step-down buck modules with LED indicatorNew, bulk pack (no retail packaging)Replace old inefficient 3-pin 78xx-series linear regulators (7805, 7809, 7812) with a drop-in pin-compatible high efficiency step-down buck SMPS module1.0A output without a heatsink or active cooling!Compatible with standard 3P or 4P 0.1" (2.54mm) pitch pin headersIncludes two 4P right-angle headers that you can optionally solder to the front or back of the modules (trim header to 3P if you don't need to use the Enable pin)Pin 1: Enable (EN) - Leave disconnected for normal operation, or connect to GND to turn off the module (for battery powered application)Pin 2: IN+Pin 3: GNDPin 4: VO+On-board Red LED for easy status visibility (also turns off when enable pin is pulled low)Output voltage is factory set to 5V and can be changed by cutting the small trace above the ADJ pads (or removing the ADJ resistor on the opposite side of the board) and then adding a solder bridge to the appropriate padsDimensions: 18.0 x 10.4 x 4.5mmElectrical specs:Input: 4.5-24VDC (should typically be about 1.0V or more above desired output voltage)Output: Fixed 3.3V/5V/9V/12VDC (or other voltages via replacement of the ADJ resistor)Cont. max load: 1.0AAbs. max load: 1.3A for short periods (~20s) or with active coolingEfficiency: 97.5% max at 6.5V to 5V@0.7A, decreases with wider input to output voltage ratiosOutput ripple: 20mV min (12V to 5V@1A)No-load current: ~0.3mA max (excluding LED which is about 2.2mA)OSCP: yesOVP: noInput reverse polarity protection: no My items are always packed properly and securely! :)ESD-safe packaging and precautions are used with items that require it. Thanks for looking!

Price: 5.79 USD

Location: Chino, California

End Time: 2023-09-22T06:22:18.000Z

Shipping Cost: N/A USD