VIPER12ADIP-E

@@ -0,0 +1,49 @@+# VIPER12ADIP-E++**STMicroelectronics** · AC-DC Controllers and Regulators · DIP-8++VIPER12ADIP-E from STMicroelectronics, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SOURCE | power_in | Power MOSFET source and circuit ground reference. Pins 1 and 2 are internally tied together and serve as the IC ground return. |+| 2 | SOURCE | power_in | Power MOSFET source and circuit ground reference. Second SOURCE pin (paralleled with pin 1) for improved current handling and thermal dissipation. |+| 3 | FB | input | Feedback input. Useful voltage range 0 V to 1 V; sets the peak drain MOSFET current. Current limitation (maximum drain current, IDlim typ 0.4 A) is obtained by shorting FB to SOURCE. FB pin input impedance ~1.2 kΩ; IFB max 3 mA. |+| 4 | VDD | power_in | Power supply for the internal control circuits. Range 9-38 V (absolute max 50 V). Start-up threshold VDDon ~14.5 V, undervoltage shutdown VDDoff ~8 V, overvoltage threshold VDDovp ~42 V. Charged during start-up by the internal high-voltage current source from DRAIN. |+| 5 | DRAIN | power_out | Power MOSFET drain. Also used by the internal high-voltage start-up current source to charge the external VDD capacitor. Switching drain-source rating 730 V; rDS(on) typ 27 Ω. Pins 5-8 are internally connected together. |+| 6 | DRAIN | power_out | Power MOSFET drain (paralleled with pins 5, 7, 8) for improved current handling and thermal dissipation to the PCB copper. |+| 7 | DRAIN | power_out | Power MOSFET drain (paralleled with pins 5, 6, 8) for improved current handling and thermal dissipation to the PCB copper. |+| 8 | DRAIN | power_out | Power MOSFET drain (paralleled with pins 5, 6, 7) for improved current handling and thermal dissipation to the PCB copper. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | DIP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `VIPER12ADIP-E`+- `VIPER12ADIP-EVIPER12AS-E`+- `VIPER12ADIP-EVIPER12ASTR-E`++## CAD (KiCad official)++- Symbol: `VIPER12ADIP-E`+- Footprint: `Package_DIP:DIP-8_W7.62mm`+- 3D model: DIP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/viper12adip-e.pdf) (21 pp, sha256 `7311adf78816dd66`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/viper12adip-e-datasheet.pdf)

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