# NCP170AMX280TBG

**onsemi** · Linear Voltage Regulators (LDO) · XDFN-4-EP(1x1)

NCP170AMX280TBG from onsemi, in a XDFN-4-EP(1x1). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | power_out | Regulator output pin; VOUT is specified from -0.3 V to VIN + 0.3 V. |
| 2 | GND | power_in | Power supply ground pin. |
| 3 | EN | input | Chip enable pin (active high); VENH minimum is 1.2 V, VENL maximum is 0.4 V, and the absolute input range is -0.3 V to 6.0 V. |
| 4 | IN | power_in | Power supply input; operating input voltage range is 2.2 V to 5.5 V and the absolute maximum input voltage is 6.0 V. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | XDFN-4-EP(1x1) |
| Category | Power Management ICs |
| Pins | 5 |

## 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 operating voltage | VIN | 2.2 |  | 5.5 | V |  | 8 |
| Output voltage | VOUT | 2.772 | 2.8 | 2.828 | V | TA = +25°C | 8 |
| Output voltage | VOUT | 2.744 | 2.8 | 2.856 | V | −40°C ≤ TJ ≤ 85°C | 8 |
| Line regulation | LineReg |  | 0.05 | 0.2 | %/V | 3.8 V < VIN ≤ 5.5 V, IOUT = 1 mA | 8 |
| Load regulation | LoadReg | -20 | 1 | 20 | mV | 0 mA < IOUT ≤ 150 mA, VIN = 3.8 V | 8 |
| Dropout voltage | VDO |  | 210 | 300 | mV | IOUT = 150 mA (Note 24) | 8 |
| Output current | IOUT | 150 |  |  | mA | Note 25 | 8 |
| Quiescent current | IQ |  | 0.5 | 0.9 | A | IOUT = 0 mA | 8 |
| Standby current | ISTB |  | 0.1 | 0.5 | A | VEN = 0 V, TJ = 25°C | 8 |
| EN pin threshold voltage, high | VENH | 1.2 |  |  | V | EN Input Voltage “H” | 8 |
| EN pin threshold voltage, low | VENL |  |  | 0.4 | V | EN Input Voltage “L” | 8 |
| Operating junction temperature range | TJ | -40 |  | 85 | °C | Range stated for the 2.8 V electrical characteristics table | 8 |
| Input voltage (absolute maximum) | VIN |  |  | 6 | V | Note 1 | 2 |
| Output voltage (absolute maximum) | VOUT | -0.3 |  |  | V | Upper limit printed as VIN + 0.3 V | 2 |
| Chip enable input voltage (absolute maximum) | VCE | -0.3 |  | 6 | V |  | 2 |
| Maximum junction temperature | TJ(MAX) |  |  | 150 | °C |  | 2 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 2 |
| ESD capability, human body model | ESDHBM |  |  | 2000 | V | Tested per AEC-Q100-002 (EIA/JESD22-A114) | 2 |
| ESD capability, machine model | ESDMM |  |  | 200 | V | Tested per AEC-Q100-003 (EIA/JESD22-A115) | 2 |
| Thermal resistance, junction-to-air, XDFN4 1×1 mm | RJA |  |  | 250 | °C/W | XDFN4 1 × 1 mm package | 2 |

## CAD (KiCad official)

- Symbol: `NCP170AMX280TBG`
- 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: `ncp170amx280tbg-etched.step` / `ncp170amx280tbg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncp170amx280tbg.step` / `ncp170amx280tbg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/ncp170amx280tb-d.pdf) (28 pp, sha256 `e9ce3964b316d909`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ncp170amx280tbg-datasheet.pdf)