| Part list for Mk2.7-s DC-DC power supply | |||||||||||||||
| CAD | |||||||||||||||
| Component | Supplier Part # | Qty | Supplier | Supp Pt # | Cost (UK) | Manufacturer | Link | Notes | |||||||
| 5A STEPDOWN PWM DC-DC REGULATOR (5.0V) | MAX787CCK | 2 | Maxim | Free sample | Maxim | http://dbserv.maxim-ic.com/quick_view2.cfm?qv_pk=1271 | *only 1 required for 3.3V supply | 5V/3.3V/3V 5A step-down, PWM, switch-mode DC-DC Regulators | |||||||
| 5A STEPDOWN PWM DC-DC REGULATOR (3.3V) | MAX788CCK | 1 | Maxim | Free sample | Maxim | http://dbserv.maxim-ic.com/quick_view2.cfm?qv_pk=1271 | *only required for 3.3V supply | 5V/3.3V/3V 5A step-down, PWM, switch-mode DC-DC Regulators | |||||||
| Simple Switcher 5A Flyback Regulator | LM2587-12T | 1 | National Semiconductor | Free sample | National Semiconductor | http://www.national.com/pf/LM/LM2587.html | |||||||||
| Flyback Regulator Transformer T6 | Q4339-B | 1 | Coilcraft | Free sample | Coilcraft | http://www.coilcraft.com/q4339.html | |||||||||
| INDUCTOR, 10uH "Power Choke" | PCV-0-103-05 | 3 | Coilcraft | Free sample | Coilcraft | http://www.coilcraft.com | |||||||||
| INDUCTOR,BOBBIN 47UH 8.5A | 1447385 | 3 | Farnell UK | 482-572 | £2.37 | Newport Power Devices | http://www.farnell.com | $16.30 | |||||||
| IC-VOLTAGE REGULATOR -5V | MC79L05ACP | 1 | Farnell UK | 701-932 | £0.32 | various | http://www.farnell.com | $0.73 | |||||||
| IC CMOS 4049 | ? | 1 | Farnell UK | ? | £0.36 | various | http://www.farnell.com | $0.83 | |||||||
| DIODE,SCHOTTKY 7.5A | MBR745 | 3 | Farnell UK | 878-261 | £1.04 | Motorola | http://www.farnell.com | $7.15 | |||||||
| DIODE,SCHOTTKY 3A 40V | MBR340 | 1 | Farnell UK | 638-146 | £0.54 | Motorola | http://www.farnell.com | $1.24 | |||||||
| DIODE,ULTRA FAST 1A 200V | MUR120RL | 1 | Farnell UK | 930-994 | £0.28 | Motorola | http://www.farnell.com | $0.64 | |||||||
| DIODE,TRANSIENT SUPPRESSION | SA28A | 1 | Farnell UK | 167-356 | £0.52 | Farichild | http://www.farnell.com | $1.19 | |||||||
| DIODE,SCHOTTKY 1A | 1N5819 | 1 | Farnell UK | 573-115 | £0.27 | Multicomp | http://www.farnell.com | $0.62 | |||||||
| DIODE,1A 100V | 1N4002 | 2 | Farnell UK | 365-142 | £0.06 | Philips | http://www.farnell.com | Any general >0.5A diode will work | $0.28 | ||||||
| RELAY,PCB SPCO 12V | G2R-1 12DC+ | 1 | Farnell UK | 179-325 | £2.32 | Omron | http://www.farnell.com | $5.32 | |||||||
| CAPACITOR,1800UF 35V (Electrolytic) | EEUFC1V182 | 2 | Farnell UK | 303-6443 | £0.92 | Panasonic | http://www.farnell.com | (FC series) Must be low ESR type | $4.22 | ||||||
| CAPACITOR,470UF 25V (Electrolytic) | EEUFC1E471 | 6 | Farnell UK | 303-6273 | £0.30 | Panasonic | http://www.farnell.com | (FC series) Must be low ESR type | $4.13 | ||||||
| CAPACITOR,330UF 35V (Electrolytic) | EEUFC1V331 | 4 | Farnell UK | 303-6406 | £0.30 | Panasonic | http://www.farnell.com | (FC series) Must be low ESR type | $2.75 | ||||||
| CAPACITOR,220UF 25V (Electrolytic) | EEUFC1E221 | 1 | Farnell UK | 303-6250 | £0.19 | Panasonic | http://www.farnell.com | (FC series) | $0.44 | ||||||
| CAPACITOR,10UF 25V (Electrolytic) | TAP106M025CCS | 1 | Farnell UK | 643-786 | £0.39 | various | http://www.farnell.com | $0.89 | |||||||
| CAPACITOR,0.68UF 35V (Tantalium Cap) | TAP684M035CCS | 1 | Farnell UK | 643-877 | £0.17 | AVX | http://www.farnell.com | $0.39 | |||||||
| CAPACITOR 100NF 63V (Polyester Cap) | BH014D0104K | 1 | Farnell UK | 301-8660 | £0.12 | AVX | http://www.farnell.com | Any 100nF capacitor should work | $0.28 | ||||||
| CAPACITOR 10000PF (Ceramic Cap) | MCDR25103X7RK0050 | 3 | Farnell UK | 750-890 | £0.11 | Multicomp | http://www.farnell.com | $0.76 | |||||||
| RESISTOR, 47k 1/4W | 1 | Farnell UK | 543-780 | £0.023 | http://www.farnell.com | $0.05 | |||||||||
| RESISTOR, 2.7k 1/4W | 3 | Farnell UK | ? | £0.023 | http://www.farnell.com | red, violet, red | $0.16 | ||||||||
| RESISTOR, 3k 1/4W | 1 | Farnell UK | 543-494 | £0.023 | http://www.farnell.com | orange, black, red | $0.05 | ||||||||
| RESISTOR, 470R 1/2W | 1 | Farnell UK | 544-516 | £0.04 | http://www.farnell.com | yellow, violet, brown | $0.08 | ||||||||
| TO220 heatsink electrical insulators | MK3306/S | 2 | Farnell UK | 522-636 | £0.11 | $0.50 | |||||||||
| 3mm Led | 1 | Use any colour you like | |||||||||||||
| PCB | 1 | Make your own yourself | |||||||||||||
| Heatsink | 1 | Make your own yourself cut and bend aluminium to fit | |||||||||||||
| TOTAL | $48.98 | ||||||||||||||
| MBR745 diodes must be electrically isolated | |||||||||||||||
| Connection to battery must be 10A fuse and holder 1 fused | |||||||||||||||
| Cables and connectors fit as required | |||||||||||||||