component
L7986TA
Public Made by Adomby adom
STMicroelectronics DC-DC Converters, HSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownL7986TA
STMicroelectronics · DC-DC Converters · HSOP-8-EP
L7986TA from STMicroelectronics, in a HSOP-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | output | Regulated DC output supplying up to 3 A DC output current. |
| 2 | SYNCH | bidirectional | Master/slave synchronization pin outputting a phase-shifted signal when floating or accepting external clock signals with input threshold 1 to 3.3 V and master output amplitude 2 V. |
| 3 | EN | input | Active-high logic enable input; device turns ON above 1.2 V and turns OFF below 0.3 V. |
| 4 | COMP | output | Error amplifier output for frequency compensation network connection with voltage swing 0 to 3.3 V. |
| 5 | FB | input | Feedback input for output voltage regulation with nominal internal reference 0.6 V and absolute maximum voltage 1.5 V. |
| 6 | FSW | input | Switching frequency adjustment pin; external resistor to ground adjusts frequency up to 1 MHz, or defaults to free-running 250 kHz when floating. |
| 7 | GND | power_in | Ground/return path for all internal and external circuits. |
| 8 | VCC | power_in | Unregulated DC input voltage supply; operating range 4.5 to 38 V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | HSOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
L7986TA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: HSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
l7986ta-etched.step/l7986ta-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l7986ta.step/l7986ta.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (42 pp, sha256
6fbde02e437f5e16, retrieved 2026-09-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).