component
L5970ADTR
Public Made by Adomby adom
STMicroelectronics DC-DC Converters, SOIC-8. Datasheet-verified pinout, 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
markdownL5970ADTR
STMicroelectronics · DC-DC Converters · SOIC-8
L5970ADTR from STMicroelectronics, in a SOIC-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 | OUT | power_out | Regulated step-down converter output; delivers up to 1.5A DC current to load, output voltage adjustable from 1.235V to 35V depending on external feedback divider network. |
| 2 | SYNC | bidirectional | Master/Slave synchronization pin; outputs signal synchronous with internal power turn-off at 500kHz when open, accepts external signal above 500kHz for device synchronization, acts as master or slave when connected with other devices. |
| 3 | INH | input | Active-high inhibit control input; disables device when above 2.2V (OFF state), enables when below 0.8V (ON state), must be grounded if unused or will be disabled by internal pull-up when floating. |
| 4 | COMP | output | Error amplifier output connected to external compensation network; sets loop response and stability characteristics of the voltage feedback control loop. |
| 5 | FB | input | Feedback input for output voltage regulation; direct connection to output sets 1.235V output voltage, external resistor divider with typical 4.7kΩ resistor to ground required for output voltages up to 35V. |
| 6 | VREF | power_out | 3.3V reference voltage output supplying internal circuitry; provides stable 3.234-3.366V output across 4.4-36V input range with no filter capacitor required for stability. |
| 7 | GND | power_in | Ground; common return path for all internal circuits and external connections. |
| 8 | VCC | power_in | Unregulated DC input voltage supply; accepts 4.4V to 36V input range for operation of internal voltage regulator and 1.5A internal P-DMOS power switch. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
L5970ADTR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
l5970adtr-etched.step/l5970adtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l5970adtr.step/l5970adtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (11 pp, sha256
cf023a59e3ab8e46, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).