component
L5970AD
Public Made by Adomby adom
STMicroelectronics DC-DC Converters, SO-8. 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
markdownL5970AD
STMicroelectronics · DC-DC Converters · SO-8
L5970AD from STMicroelectronics, in a SO-8. 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 | Regulator output with voltage adjustable from 1.235V to 35V and maximum current limit of 1.8A. |
| 2 | SYNC | bidirectional | Master/Slave synchronization pin with logic levels 0.74V (low) to 2.5V (high) for frequency synchronization at 500kHz and above. |
| 3 | INH | input | Active-high inhibit input disabling device above 2.2V and enabling below 0.8V, with internal pull-up when floating. |
| 4 | COMP | output | Error amplifier output for external frequency compensation with output voltage range 0.4V to 3.65V. |
| 5 | FB | input | Feedback input connected to external voltage divider (typically 4.7kΩ to ground) with reference voltage threshold of 1.235V. |
| 6 | VREF | power_in | Reference voltage output of 3.3V (3.234V to 3.366V) with maximum short-circuit current of 30mA. |
| 7 | GND | power_in | Ground power return connection. |
| 8 | VCC | power_in | Unregulated DC input voltage operating from 4.4V to 36V with maximum rating of 40V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
L5970AD - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
l5970ad-etched.step/l5970ad-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l5970ad.step/l5970ad.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (11 pp, sha256
cf023a59e3ab8e46, retrieved 2026-10-07, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).