| Performance Of Recently Introduced Isolated DC-DC Converters | ||||||||||||
| Vendor/ Part number |
Footprint (in.) | Height (in.) | Temperature range | Power (W) (TA = 25°) | Power derating with temperature | Full-load efficiency | Output voltages (V**) | Output current (A) | Input voltages (V) | Package type | Special features | Availability |
| Powercube, A Natel Compan QED series* |
Half brick | 0.50, 0.75 with heatsink | −40°C to 85°C | 150 (conduction cooled models with baseplate), 150 (200 CFM airflow without baseplate) | None (conduction cooled models) | 93% at 5 91% at 3.3 91% at 2.5 |
2.5, 3.3, 5 | 30 | 36 to 76 | Through-hole | Power-on sequencing, synchronization | Fourth qtr. |
| RO Associates Inc. SuperMicro Su48 series |
Half brick | 0.50; 0.75, 1.0, 1.5 with heatsink | −40°C to 100°C | 240 with heatsink | None | 86% at 28 and 24 V, 87% at 15 V, 85% at 12 V, 83% at 5 V, 79.5% at 3.3 V, 76.5% at 2.5 V | 2.5, 3.3, 5, 12, 15, 24, 28 V | 50 at 2.5 V, 45 at 3.3 V, 40 at 5 V, 20 at 12 V, 16 at 15 V, 10 at 24 V, 8.6 at 28 V | 36 to 75 | Through-hole | Full-power output over temperature, 1.8 million hours MTBF, remote sense, trim | Now |
| Switch Power SP48D20* |
2 by 2 | 0.40 (no heatsink required) | −40°C to 85°C | 20 | None | 85% | 3.3 and 5 (dual output) | 5.5 at 3.3 V, 3.5 at 5 V | 36 to 75 | Through-hole | Independent-ly isolated and regulated dual outputs | Now |
| Switch Power SPM5055* |
3 by 0.42 SIP | 0.60 (no heatsink required) | −40°C to 85°C | 50 | 15 A at 70°C | 85% | 1.5, 1.8, 2.5, 2.6, 3.3 | 15 | 3.3, 5 nom | Through-hole | Power density is 66 W/in.3 | Now |
| SynQor PQ48xxxHTA60 (PowerQor Tera series)* |
Half brick | 0.40 (no heatsink required) | −40°C to 100°C | 165 | See datasheet | 91% at 15 V and 12 V, 89% at 5 V and 3.3 V, 86% at 2.5 V, 84% at 2.0 V and 1.8 V, 83% at 1.5 V | 1.5, 1.8, 2.0, 2.5, 3.3, 5, 12, 15 | 60 at 1.5, 1.8, 2.0 or 2.5 V | 35 to 75 | Through- hole, SMT | Current sharing, N+1 redundant, back-drive protection, external clock sync pin, startup sync pin, Oring, FET drive | Through-hole available now; SMT available third qtr. |
| Texas Instruments/ Power Trends Products PT4480/PT4470* |
3.65 by 0.54 (vertical mount) 3.65 by 1.5 (horizontal and SMT) | 0.50, 1.0 with heatsink | −40°C to 85°C | 100 | Dependent on airflow (see datasheet) | 89% at 12 V, 90% at 5 V, 87% at 3.3 V | A digitally programmable 1.3 to 3.5, or a fixed 5 or 12 | 30 at 1.3 to 3.5 V, 20 at 5 V, 8.3 at 12 V | 18 to 36 (PT4470), 36 to 75 (PT4480) | Horizontal- and vertical-mount through-hole, SMT | 5-bit VID digital voltage adjust, fast transient response, tracking overvoltage protection, no optical couplers, current sharing, N+1 redundancy | PT4480 available now; PT4470 samples available now |
| Vicor Corp. V375 in family |
Full, half, and quarter bricks | 0.50, 0.90 with heatsink | C = −20°C to 100, T = −40°C to 100, H = −40°C to 100, M = −55°C to 100 | Full: 600 (w/hs at 300 LFM airflow) Half: 300 (w/hs at 300 LFM airflow) Quarter: 150 (w/hs at 300 LFM airflow) | None | 91% at 48 V | 2, 3.3, 5, 12, 15, 24, 28, 48 | 80 at 2 V, 3.3, 5 V, 50 at 12 V, 40 at 15 V, 25 at 24 V, 21.4 at 28 V, 12.5 at 48 V | 250 to 425 | Through-hole, surface-mount adapter option | Up to 120W/in.2 power density, power sharing to 7.2 kW, true N+M fault tolerance; 3000-V ac isolation, output voltage programmable from 10% to 110% | Now |
| Wall Industries SF48 series* |
Quarter brick | 0.40 (no heatsink required) | −40°C to 100°C at case | 20 | None | >86% | 3.3 and 5 | 6 | 24 and 48 V nom | SMT | High-operating temperature, trim | Now |