component
NCP161BMX250TBG
Public Made by Adomby adom
onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, XDFN-4-EP(1x1). 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
markdownNCP161BMX250TBG
onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · XDFN-4-EP(1x1)
NCP161BMX250TBG 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 |
|---|---|---|---|
| 4 | IN | power_in | Input voltage supply pin. Operating range 1.9 V to 5.5 V (absolute max 6 V). Bypass with a 1 µF ceramic capacitor to GND close to the pin. |
| 1 | OUT | power_out | Regulated output voltage (fixed 2.50 V for this option, ±2% accuracy). Supplies up to 450 mA. The output should be bypassed with a small 1 µF ceramic capacitor. |
| 3 | EN | input | Chip enable. Applying V_EN < 0.4 V disables the regulator; pulling V_EN > 1.2 V enables the LDO. EN pull-down current typ. 0.2 µA at 4.8 V. Absolute max −0.3 V to 6 V. |
| 2 | GND | power_in | Common ground connection / device ground reference. |
| EPAD | EPAD | passive | Exposed thermal pad on the underside of the XDFN-4 package. Should be tied to the ground plane for better power dissipation (thermal resistance R_θJA = 198.1 °C/W). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | XDFN-4-EP(1x1) |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
NCP161BMX250TBGNCP161BMX250TBGAMUNCP161BMX250TBGSN
CAD (KiCad official)
- Symbol:
NCP161BMX250TBG - 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:
ncp161bmx250tbg-etched.step/ncp161bmx250tbg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ncp161bmx250tbg.step/ncp161bmx250tbg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (22 pp, sha256
1bc92a33636c394e, 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).