component
NCP303LSN27T1G
Public Unreviewedby Ray
onsemi Supervisor and Reset ICs, TSOP-5. 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
markdownNCP303LSN27T1G
onsemi · Supervisor and Reset ICs · TSOP-5
NCP303LSN27T1G from onsemi, in a TSOP-5. 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 | output | Open-drain N-channel active-low reset output. Sinks current (Iout typ 0.14 mA at Vout=0.05 V, Vin=0.70 V; typ 3.5 mA at Vout=0.5 V, Vin=1.5 V) when the input drops below the 2.7 V detector threshold. Requires an external pull-up resistor to the desired output rail (rated -0.3 V to 12 V). |
| 2 | Input | power_in | Monitored supply input and device power. Detects when Vin decreases below the 2.7 V threshold (Vdet- 2.646/2.700/2.754 V). Absolute max 12 V; typical operating range 0.8 V to 10 V; supply current typ 0.25 uA at Vin=2.6 V. |
| 3 | Ground | power_in | Device ground reference for the internal bandgap, comparator and output stage. |
| 4 | N.C. | unconnected | No internal connection. Leave floating or tie to ground per PCB preference. |
| 5 | CD | passive | External delay capacitor pin for the programmable reset time delay generator. Internal pull-up resistance Rd typ 1.0 MOhm (0.5-2.0 MOhm); delay-pin threshold Vtcd typ 2.01 V at Vin=2.97 V; internal sink current typ 250 uA (Vin=0.7 V, Vcd=0.1 V) to discharge the cap during a fault. Absolute max -0.3 V to Vin+0.3 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSOP-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
NCP303LSN27T1G
CAD (KiCad official)
- Symbol:
NCP303LSN27T1G - Footprint:
Package_SO:TSOP-5_1.65x3.05mm_P0.95mm - 3D model: TSOP-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (27 pp, sha256
625daa7711ef4912, 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).