Dual-output step-down DC/DC controller with a maximum switching frequency of 300 kHz. Features a 4.5 V to 36 V operating supply voltage range and an output voltage adjustable from 2 V to 3.5 V. This surface-mount component is housed in an 18-pin SOIC package with gull-wing leads, measuring 11.75 mm maximum length and 7.6 mm maximum width. Operating temperature range is 0 °C to 70 °C.
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Texas Instruments UC3870DW-1 technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | SOP |
| Package/Case | SOIC |
| Package Description | Small Outline IC |
| Lead Shape | Gull-wing |
| Pin Count | 18 |
| PCB | 18 |
| Package Length (mm) | 11.75(Max) |
| Package Width (mm) | 7.6(Max) |
| Package Height (mm) | 2.35(Max) |
| Seated Plane Height (mm) | 2.65(Max) |
| Pin Pitch (mm) | 1.27 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-013AB |
| Topology | Step Down |
| Number of Outputs | 2 |
| Output Voltage | 2 to 3.5V |
| Maximum Switching Frequency | 300kHz |
| Min Operating Temperature | 0°C |
| Max Operating Temperature | 70°C |
| Maximum Input Voltage | 36V |
| Minimum Input Voltage | 4.5V |
| Operating Supply Voltage | 4.5 to 36V |
| Maximum Supply Current | 12mA |
| Cage Code | 01295 |
| HTS Code | 8542390001 |
| Schedule B | 8542390000 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2002/95/EC |
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