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L5970AD

Public Made by Adom

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STMicroelectronics DC-DC Converters, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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L5970AD

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l5970ad.step / l5970ad.glb are 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, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF