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Contents

README

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TSM1012AIDT

STMicroelectronics · Voltage Reference · SOIC-8

TSM1012AIDT 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 VRef output Voltage reference output, 1.25 V typical (0.5% precision for TSM1012A). Maximum output current 2.5 mA. Used to bias the CC/CV loop resistor dividers.
2 CC- input Inverting input of the current-control transconductance operational amplifier. Directly accessible for external compensation network (e.g., Ric1 + Cic1 to OUT).
3 CC+ input Non-inverting input of the current-control transconductance operational amplifier. Tied to the middle point of the R4/R5 divider that sets the Vsense threshold from Vref.
4 CV- input Inverting input of the voltage-control transconductance operational amplifier. Directly accessible for external compensation network (e.g., Rcv1 + Cvc1 to OUT).
5 CV+ input Non-inverting input of the voltage-control transconductance operational amplifier. Fed by the R1/R2 divider on the regulated output to close the voltage loop.
6 GND power_in Ground line. 0 V reference for all voltages on the device.
7 OUT output Common sink output of the two transconductance operational amplifiers (ORed, common-collector). Drives the optocoupler LED cathode; sinks up to ~10 mA short-circuit to (VCC - 0.6 V). Vol = 250 mV typ. at 5 mA sink.
8 VCC power_in Power supply line. Operating range 4.5 V to Vz (28 V internal Zener clamp at ICC = 50 mA). Total supply current 100 µA typ. (180 µA max) excluding Vref load.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-8
Category Power Management (PMIC)
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • TSM1012AIDT

CAD (KiCad official)

  • Symbol: TSM1012AIDT
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (None pp, sha256 e051ba36b763f683, retrieved 2026-08-17, tier: lcsc)
  • 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