106990019

www.speedy-lab.com 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! ! ! ! ! ! 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! available! in! an! innovative! small! PCB! that! enhances! thermal! performance! and! allows! for! hand! soldering! or! plugin! use.! It! requires! no! external! components.! It! is! a! reliable,! robust! and! allows! startup! into! a! preVbiased! output.! Other! significant! features! like! better! output! accuracy! (±1%)! and! lower! standby! current! of! 0.3mA! makes! this! module! an! ideal! solution! for! many!applications.! Key Features!! • • • • • • • • • • • !!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ))))))))))))))))))))))))))Positive)Output)Configuration) • ! Applications • • • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! !!!!!!!!!!!!!!!!!!!!!!!!!!Negative)Output)Configuration) One Module!Supports! Positive/Negative!Output High!Efficiency!at!Light!Loads! 85%@Vin=7V! 3.5V!to!28V!for!Positive!Input! Voltage!Range! 2.7V!to!27V!for!Negative!Input! Voltage!Range! Supports!up!to!2A!Continuous! Output!Current!(no!heat!sink! required)! Typical!5μA!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! • 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! www.speedy-lab.com 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! ! www.speedy-lab.com Typical Electrical Characteristics (Room Temperature) ! ! !!!!!!!!!!!!!!!!!!!!!!Figure!1.!Efficiency!at!3.3V!output!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Figure!2.!Light!load!efficiency!at!3.3V!output! ! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!Figure!3.!Efficiency!at!:3.3V!output!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Figure!4.!Light!load!efficiency!at!:3.3V!output! ! !!!!!!!!!!!!!!!!!Figure!5.!Load!regulation!at!3.3V!output!!!!!!!!!!!!!!!!!!!!!!!!!!!Figure!6.!Load!regulation!at!:3.3V!output! ! www.speedy-lab.com ! !!!!!!!!!!!!!!Figure!7.!Line!regulation!at!3.3V!output!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Figure!8.!Line!regulation!at!:3.3V!output! !!!!! ! !!!!!!!!!!!!!!!!!Figure!9.!Soft!start!at!Vin=7V,!Iout=2A!!!!!!!!!!!!!!!!!!!!!!!!!!!Figure!10.!Vout!ripple!at!Vin=7V,!Vout=2A! ! !!!! !!!!!Figure!11.!Load!transient!at!Vin=25V,!Iout=0~2A!!!!!!!!!Figure!12.!Load!transient!at!Vin=25V,!Iout=2~0A! ! ! ! ! www.speedy-lab.com Schematic !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! www.speedy-lab.com ! Layout (Top) !!!!!!!!!!! !!!!!!!!!!!! ! Layout (Bottom) !!!!!!!!!!!! ! ! ! ! ! ! !!!!!!!!!!!! ! www.speedy-lab.com ! BOM NO. Description Designator Manufacturer 1 GRM31CR71H475KA12L 4.7u 1206 Capacitor 50V X7R C1,C2 MURATA 2 CL10B103KB8NNNC 10n 0603 Capacitor 50V X7R C3,Css1 SAMSUNG 3 CL10B104KB8NNNC 100n 0603 Capacitor 50V X7R C4,C6 SAMSUNG 4 CL10C470JB8NNNC 47p 0603 Capacitor 50V X7R Cc1 SAMSUNG 5 CL10B102KB8NNNC 1000p 0603 Capacitor 50V X7R Cc2 SAMSUNG 6 2.54mm, Header, 3-Pin P1 Do not populate 7 2.54mm, Header, 3-Pin P1 Do not populate 8 30k 0603 Resistor,1% R2 Super ohms 9 3.3k 0603 Resistor,1% R3 Super ohms 10 330k 0603 Resistor,1% Ren1 Do not populate Super ohms 11 68k 0603 Resistor,1% Ren2 Do not populate Super ohms 12 200k 0603 Resistor,1% Rfb1 Super ohms 13 11k 0603 Resistor,1% Rfb2 Super ohms 14 3.5A 6.8uH 7.4mm*7.4mm*3.5mm HPC8040B-6R8Y L1 TaiTech 16 SMB SS54 SMB 3.5mm*4.8mm D1 MDD 18 GRM32ER61C476KE15L x5r 16V 1210 47uF C5,C8 MURATA 19 TPS54331D U1 TI ! ! ! ! ! ! ! ! ! ! ! www.speedy-lab.com ! Assembly Drawing !