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ncp177amx120tcg

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onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, XDFN-4-EP(1x1). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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NCP177AMX120TCG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · XDFN-4-EP(1x1)

NCP177AMX120TCG from onsemi, in a XDFN-4-EP(1x1). 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 output voltage pin. Fixed 1.20 V nominal (AMX120TCG option) with ±0.8% accuracy at Tj = 25 C, sourcing up to 500 mA. Requires a 1 uF ceramic (X7R/X5R) output capacitor placed as close as possible to this pin and GND; minimum effective capacitance 0.8 uF, max ESR 0.5 ohm. On A-version an internal ~60 ohm active-discharge FET pulls this pin to GND when EN is low.
2 GND power_in Power-supply ground / device reference. Should be connected to the ground plane together with the exposed pad for good thermal dissipation.
3 EN input Active-high enable input. VENH >= 1.0 V enables the regulator; VENL <= 0.4 V disables it (and engages the ~60 ohm output active-discharge on the A-version). Absolute max -0.3 V to 6.0 V; input current 0.15 uA typ at 5.5 V. An internal ~300 nA pull-down keeps the part off if EN is left floating; tie EN to IN if the enable function is unused.
4 IN power_in Power-supply input voltage. Operating range 1.6 V to 5.5 V (absolute max -0.3 V to 6.0 V). Requires a 1 uF or larger ceramic X7R/X5R input capacitor placed close to this pin and GND to ensure stability and provide a low-impedance path for AC noise.
EP EPAD passive Exposed thermal pad on the package underside. Must be tied to the ground plane for proper power dissipation (RθJA = 223 C/W on the JEDEC board). Electrically the datasheet does not designate it as a signal pin, but it should be connected to GND.

Key specifications

Parameter Value
Manufacturer onsemi
Package XDFN-4-EP(1x1)
Category PMIC
Pins 5

Ordering variants

  • NCP177AMX120TCGAMX070TCG
  • NCP177AMX120TCGAMX090TCG
  • NCP177AMX120TCGAMX100TCG
  • NCP177AMX120TCGAMX110TCG
  • NCP177AMX120TCG
  • NCP177AMX120TCGAMX125TCG
  • NCP177AMX120TCGAMX135TCG
  • NCP177AMX120TCGAMX150TCG
  • NCP177AMX120TCGAMX180TCG
  • NCP177AMX120TCGAMX330TCG
  • NCP177AMX120TCGBMX070TCG
  • NCP177AMX120TCGBMX100TCG
  • NCP177AMX120TCGBMX110TCG
  • NCP177AMX120TCGBMX120TCG
  • NCP177AMX120TCGBMX125TCG
  • NCP177AMX120TCGBMX135TCG
  • NCP177AMX120TCGBMX150TCG
  • NCP177AMX120TCGBMX180TCG
  • NCP177AMX120TCGBMX330TCG

CAD (KiCad official)

  • Symbol: NCP177AMX120TCG
  • Footprint: Package_DFN_QFN:OnSemi_XDFN4-1EP_1.0x1.0mm_EP0.52x0.52mm
  • 3D model: XDFN-4-EP(1x1) (KiCad packages3D, STEP)
  • 3D model files: ncp177amx120tcg-etched.step / ncp177amx120tcg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp177amx120tcg.step / ncp177amx120tcg.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (None pp, sha256 c3548bfc2eef96a1, 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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