1W isolated DC-DC converter Fixed input voltage, unregulated dual output
Description
A0303S-1WR2 is designed for use in distributed power supply systems and especially suitable in applications such as pure digital circuits,low frequency analog circuits,relay-driven circuits and data switching circuits,where:
1.The voltage of the input power supply is relatively stable with a variation of±10%Vin or less; 2.An input to output isolation voltage of up to 1500VDC is necessary;
3.The requirement for a tight line and load regulation is not as strict.
Such as pure digital circuits,low frequency analog circuits,relay-driven circuits and data switching circuits.
FEATURES
Specifications
| Selection Guide | |||||
|
Part No. |
Input Voltage (VDC) | Output | Full Load Efficiency (%) Min./Typ. |
Capacitive Load*(µF) Max. |
|
| Nominal (Range) | Voltage (VDC) | Current(mA) (Max./Min.) | |||
| A0303S-1WR2 |
3.3 (2.97-3.63) |
±3.3 | ±152/±15 | 67/71 | 100 |
| Note: * The specified maximum capacitive load for positive and negative output is identical. | |||||
| Input Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Input Current (full load / no-load) | 3.3V input | -- | 400/30 | --/60 | mA |
| Surge Voltage (1sec. max.) | 3.3V input | -0.7 | -- | 5 | VDC |
| Reflected Ripple Current | -- | 30 | -- | mA | |
| Input Filter | Capacitor filter | ||||
| Hot Plug | Unavailable | ||||
| Output Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Output Voltage Accuracy | See output regulation curve (Fig. 1) | ||||
| Line Regulation | Input voltage change: ±1% | -- | -- | ±1.5 | -- |
| Load Regulation | 10%-100% load | -- | 18 | -- | % |
| Ripple & Noise* | 20MHz bandwidth | -- | 50 | 150 | mVp-p |
| Temperature Coefficient | 100% load | -- | -- | ±0.04 | %/℃ |
| Short-circuit Protection** | -- | -- | 1 | s | |
|
Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods. **The supply voltage must be discontinued at the end of short circuit duration. |
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| Physical Specifications | |
| Casing Material | Black flame-retardant heat-proof epoxy resin ((UL94 V-0) |
| Package Dimensions | 19.50*9.30*6.00 mm |
| Weight | 2.4g(Typ.) |
| Cooling methods | Free air convection |
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