component

L5970D013TR

Public Made by Adom

by adom

STMicroelectronics AC-DC Controllers and Regulators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicl5970d013tr
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
l5970d013tr / README.md
History Download
Ray l5970d013tr: specified limits as data (metadata.characteristics, 41 rows from the datasheet) 09a3852

L5970D013TR

STMicroelectronics · AC-DC Controllers and Regulators · SOIC-8

L5970D013TR 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 output Regulator switching output. Connects to the external inductor/catch-diode node of the buck converter; delivers up to 1A at 1.2V-35V.
2 SYNC bidirectional Master/slave synchronization pin. Allows synchronizing multiple regulators to a common switching frequency. Absolute max -0.3 to 4V.
3 INH input Inhibit input (active high). A logic high disables the device. If unused, must be grounded; when left open, an internal pull-up disables the device. Absolute max -0.3V to Vcc.
4 COMP output Error amplifier output for loop/frequency compensation. Connect external RC compensation network (typ. 4.7kΩ + 22nF with 220pF shunt).
5 FB input Feedback input. Tying FB directly to the output yields a 1.23V output; an external resistive divider is required for higher output voltages. Absolute max 4V.
6 VREF power_out 3.3V (±2%) reference voltage output. No external stabilization capacitor is required.
7 GND power_in Device ground return.
8 VCC power_in Unregulated DC input supply, 4.4V to 36V operating (40V absolute max). Bypass with a low-ESR ceramic input capacitor (e.g. 10µF/35V).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • L5970D013TR

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input voltage V8 40 V 5
Output DC voltage V1 -1 40 V 5
Output peak voltage V1 -5 40 V t = 0.1µs 5
Analog pins 4 and 5 V4, V5 4 V 5
INH pin voltage V3 -0.3 V upper limit printed as VCC (not numeric) 5
SYNC pin voltage V2 -0.3 4 V 5
Power dissipation PTOT 0.75 W TA ≤ 60°C 5
Operating junction temperature range TJ -40 150 °C 5
Storage temperature range TSTG -55 150 °C 5
Maximum thermal resistance junction-ambient, SO8 RthJA 120 °C/W package mounted on board 5
Operating input voltage range VCC 4.4 36 V Vo = 1.235V; Io = 2A (1) 6
Mosfet on resistance RDS(on) 0.25 0.5 Ω 6
Maximum limiting current Il 1.5 1.87 2.25 A VCC = 4.4V to 36V 6
Switching frequency fs 212 250 280 KHz (1) 6
Switching frequency fs 225 250 275 KHz 6
Duty cycle 0 100 % 6
Voltage feedback V5 1.22 1.235 1.25 V 4.4V < VCC < 36V, 20mA < IO < 2A 6
Voltage feedback V5 1.198 1.235 1.272 V (1) 6
Total operating quiescent current Iqop 3 5 mA (1) 6
Quiescent current Iq 2.5 mA Duty cycle = 0; VFB = 1.5V 6
Total stand-by quiescent current Iqst-by 50 100 µA Vinh > 2.2V 6
Total stand-by quiescent current Iqst-by 80 150 µA VCC = 36V; Vinh > 2.2V 6
INH threshold voltage, device ON 0.8 V Device ON 6
INH threshold voltage, device OFF 2.2 V Device OFF 6
High level output voltage VOH 3.5 V VFB = 1V 6
Low level output voltage VOL 0.4 V VFB = 1.5V 6
Source output current Io source 200 300 µA VCOMP = 1.9V; VFB = 1V 6
Sink output current Io sink 1 1.5 mA VCOMP = 1.9V; VFB = 1.5V 6
Source bias current Ib 2.5 4 µA 7
DC open loop gain 50 65 dB RL = ∞ 7
Sync high input voltage 2.5 V VCC = 4.4V to 36V; upper limit printed as VREF (not numeric) 7
Sync low input voltage 0.74 V VCC = 4.4V to 36V 7
Slave sink current 0.11 0.21 mA Vsync = 0.74V (2) 7
Slave sink current 0.25 0.45 mA Vsync = 2.33V 7
Master output amplitude 2.75 3 V Isource = 3mA 7
Output pulse width 0.2 0.35 µs no load, Vsync = 1.65V 7
Reference voltage 3.234 3.3 3.366 V IREF = 0 to 5mA; VCC = 4.4V to 36V 7
Reference voltage 3.2 3.3 3.399 V IREF = 0 to 5mA; VCC = 4.4V to 36V (1) 7
Line regulation 5 10 mV IREF = 0mA; VCC = 4.4V to 36V 7
Load regulation 8 15 mV IREF = 0 to 5mA 7
Short circuit current 10 18 30 mA 7

CAD (KiCad official)

  • Symbol: L5970D013TR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: l5970d013tr-etched.step / l5970d013tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l5970d013tr.step / l5970d013tr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
l5970d013tr.step 122 KB You want the bare part, or you mark your own boards.
l5970d013tr-etched.step 2.3 MB You want the part with L5970D013TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 561 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (17 pp, sha256 d13c9acf63805d28, 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