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NCV308SN180T1G

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by Ray

onsemi Supervisor And Reset ICs, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)ncv308sn180t1g
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Contents

README

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NCV308SN180T1G

onsemi · Supervisor And Reset ICs · SOT-23-6

NCV308SN180T1G from onsemi, in a SOT-23-6. 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 RESET output Active-low open-drain N-channel MOSFET RESET output. Driven low when SENSE is below the threshold voltage V_IT or when MR is pulled low; releases after the programmed reset delay once SENSE > V_IT and MR is high. Requires an external pull-up resistor (10 kΩ-1 MΩ recommended); low-level output voltage ≤ 0.3-0.4 V at 0.4-1.0 mA.
2 GND power_in Ground terminal. Connect to the PCB ground reference.
3 MR input Manual Reset input, active low. Pulling MR low forces RESET low. MR is internally tied to VDD through a ~90 kΩ pull-up resistor (R_MR), so it may be left floating if unused. V_IL ≤ 0.3·VDD, V_IH ≥ 0.7·VDD.
4 CT passive Reset Delay Time Setting pin. Connect a ground-referenced capacitor (≥100 pF) for a user-programmable reset delay (typ. 1.25 ms with 1 nF, up to ~10 s). Tying CT to VDD through a 40 kΩ-200 kΩ resistor or leaving it open selects fixed reset delay times.
5 SENSE input Sense (voltage-monitor) input. RESET is asserted when V_SENSE drops below the internal threshold V_IT (1.8 V nominal for the -180 fixed variant). Input current at SENSE is typ. 110 nA at 5.5 V for fixed versions. SENSE need not monitor VDD; it can monitor any voltage lower than VDD.
6 VDD power_in Supply voltage input, 1.6 V to 5.5 V operating range (absolute max 6.0 V). Place a 0.1 µF ceramic decoupling capacitor close to this pin. Quiescent supply current is typ. 1.6 µA.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • NCV308SN180T1G
  • NCV308SN180T1GSNADJ
  • NCV308SN180T1GSNXXX

CAD (KiCad official)

  • Symbol: NCV308SN180T1G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (11 pp, sha256 46e2541016bf2be0, 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