106990019 Seeed Studio

PNMini-2A High-performance Easy-to-use Mini Power Modules for DIY Electronic Projects With Adjustable Positive/Negative Output by Speedy&Lab Related Products: PNMiniV500mA 28V input, 500mA positive/negative DC/DC step down converter PMMiniV2A 28V input, 2A positive/negative DC/DC step down converter PNMini2A:)+3.3V//3.3V,)+5V//5V,)+12V//12V)Output)with)Eco/mode)and)High)Light)Load)Efficiency Key Features The PNMini2A power module is a high efficiency converter (up to 92%) capable of driving up to 2A load without using heat sink. The PNMini2A is One Module Supports available in an innovative small PCB that enhances thermal performance Positive/Negative Output and allows for hand soldering or plugin use. It requires no external High Efficiency at Light Loads components. It is a reliable, robust and allows startup into a preVbiased 85% Vin=7V output. Other significant features like better output accuracy (1%) and 3.5V to 28V for Positive Input lower standby current of 0.3mA makes this module an ideal solution for Voltage Range 2.7V to 27V for Negative Input many applications. Voltage Range Supports up to 2A Continuous Output Current (no heat sink required) Typical 5A Shutdown Quiescent Current Slow Start Limits Inrush Currents UVLO Protection Overvoltage Transient Protection Thermal Shutdown Protection CycleVbyVcycle Current Limit enables Short Circuit Protection Simple Configuration ))))))))))))))))))))))))))Positive)Output)Configuration) Applications Consumer Applications such as SetV Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers Portable Electronics with Sleep Mode Industrial and Car Audio Power Supplies DIY Electronic Projects Negative)Output)Configuration) Output Voltage Programming The output voltage can be programmed by three resistors: Rfb1, Rfb2, and R3. The output voltage is calculated by the following equation: = . + = . + ) + Only one resistor is needed for (Rfb1 Rfb2). Two footprints are provided here to add flexibility in resistor value selection. The three resistors are connected at the output terminal. They are located at the upper right corner on the assembly drawing. Below are some possible resistor values for different output voltages: Output)Voltage)(V)) R3)(ohm)) Rfb1 Rfb2)(ohm)) 0.9 80.6k 10k 1.8 8.06k 10k 2.5 4.7k 10k 3.3 3.24k 10k 5 1.91k 10k 9 975 10k 12 714 10k