| Part | Description | Digikey P/N | Price |
|---|---|---|---|
| C1 | Aluminum Electrolytic Capacitor, 1uF, 50V
Panasonic NHG series |
P5563-ND | $0.32 |
| C2, C5 | Monolithic Ceramic Capacitor, 0.01uF, 50V
Panasonic ECG, X7R |
P4922-ND | $0.35 |
| C3, C6 | Aluminum Electrolytic Capacitor, 1000uF, 35V Panasonic FC series (high ripple current) | P10305-ND | $1.57 |
| C4, C7 | Monolithic Ceramic Capacitor, 0.022uF, 50V
Panasonic ECG, X7R |
P4953-ND | $0.40 |
| D1 | Schottky Rectifier, 10A, 35V
International Rectifier MBR1035 |
MBR1035-ND | $1.17 |
| L1 | High Current Toroid Inductor, 10uH, 10.8A
J.W.Miller 2100 series |
M9857-ND | $3.10 |
| L2, L3 | High Current Toroid Inductor, 22uH, 10.3A
J.W.Miller 2200 series |
M9885-ND | $3.92 |
| R1 | 10K ohm, 1/4 watt resistor, 1% | ||
| R2 | 1K ohm, 1/4 watt resistor, 1% | ||
| R3 | 1K ohm, 1/4 watt resistor | ||
| U1 |
Switching Regulator, 10A (@ 50% duty cycle, 8A @ 80%)
Linear Technology LT1270A |
LT1270ACT-ND | $15.75 |
| Total | $32.82 | ||
| Substiutions | |||
| C2, C5 | Ceramic Disk Capacitor, 0.01uF | P4066A-ND | $1.03/10 |
| C4, C7 | Ceramic Disk Capacitor, 0.022uF | P4067A-ND | $2.01/10 |
| D1 | Schottky Rectifier, 7A, 35V
International Rectifier MBR735 Note: The MBR1035 is more efficient |
MBR735-ND | $0.81 |
| U1 | Switching Regulator, 8A (@ 50% duty cycle, 6A @ 80%)
Linear Technology LT1270 |
LT1270CT-ND | $10.63 |
University Amateur Radio Club
N7UW
