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NCV4254CDSTR2G

Public Made by Adom

by adom

onsemi Pre-ordered transistors, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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NCV4254CDSTR2G

onsemi · Pre-ordered transistors · SOIC-8

NCV4254CDSTR2G from onsemi, in a SOIC-8. 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 Vout power_out Tracker output voltage; connect a 2.2 µF capacitor with ESR < 5 to ground, and it may be connected directly or via a voltage divider for lower output voltages.
2 GND power_in Power supply ground.
3 GND power_in Power supply ground.
4 ST output Tracking regulator status open-collector output, connected via a pull-up resistor to a positive voltage rail, which goes low to indicate a fault at the regulator output.
5 EN/REF input Enable/reference input: a low signal disables the IC and a high signal switches it on, and the reference voltage may be connected directly or via a voltage divider for lower output voltages.
6 GND power_in Power supply ground.
7 GND power_in Power supply ground.
8 Vin power_in Positive power supply input; connect a 0.1 µF capacitor to ground.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Transistors
Pins 8

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 Voltage DC Vin -20 45 V DC (Note 1) 3
Peak Transient Voltage (Load Dump) Vin 45 V Load Dump (Note 2) 3
Output Voltage Vout -5 40 V 3
Enable / Reference Input Voltage DC VEN/REF -20 40 V DC 3
Status output Voltage (Status Output Version) DC VST -0.3 7 V DC 3
Maximum Junction Temperature TJ(max) -40 150 °C 3
Storage Temperature TSTG -55 150 °C 3
ESD Capability, Human Body Model ESDHBM -4 4 kV 3
Input Voltage Vin 4 45 V 4
Enable / Reference Input Voltage VEN/REF 2 V 4
Junction Temperature TJ -40 150 °C 4
Output Voltage Tracking Accuracy Vout -3 3 mV Vin = 5.7 V to 26 V, Iout = 0.1 mA to 60 mA, 2.5 V ≤ VEN/REF ≤ (VIN − 600 mV) 4
Output Voltage Tracking Accuracy Vout -10 10 mV Vin = 5.5 V to 26 V, Iout = 0.1 mA to 60 mA, VEN/REF = 5 V 4
Line Regulation Regline -5 5 mV Vin = 5.5 V to 32 V, Iout = 5 mA, VEN/REF = 5V 4
Load Regulation Regload -5 5 mV Iout = 0.1 mA to 70 mA, VEN/REF = 5 V 4
Dropout Voltage VDO 220 400 mV Iout = 70 mA, VEN/REF = 5 V 4
Disable Current, Stand-by Mode IDIS 0.01 5 A VEN/REF ≤ 0.4 V, TJ ≤ 125°C 4
Quiescent Current Iq 65 80 A Iout ≤ 0.1 mA, VEN/REF = 5 V 4
Quiescent Current Iq 1 2 mA Iout ≤ 70 mA, VEN/REF = 5 V 4
Current Limit ILIM 71 110 150 mA Vout = (VEN/REF, 0.1 V), VEN/REF = 5 V 4
Reverse Current Iout_rev -15 -10 mA Vin = 0 V, Vout = 32 V, VEN/REF = 5 V 4
Reverse Current at Negative Input Voltage Iin_rev -1 -0.2 mA Vin = −16 V, Vout = 0 V, VEN/REF = 5 V 4
Enable / Reference Input Threshold Voltage, Logic Low Vth(EN/REF) 0.4 V Vout = 0 V, Iout ≤ 5 A, Tj ≤ 125°C 4
Enable / Reference Input Threshold Voltage, Logic High Vth(EN/REF) 2 V /Vout − VEN/REF/ < 10 mV 4
Enable / Reference Input Current IEN/REF 2 3 A VEN/REF = 5 V 5
Enable / Reference Input Current if Input tied to GND IEN/REF 0.003 0.6 mA Vin = 0 V, VEN/REF = 5 V 5
Enable / Reference Internal Pull-Down Resistor REN/REF 1.7 2.2 3.3 M 5
Status Switching Threshold, Undervoltage Vout_UV -120 -77 -50 mV Vout decreasing 5
Status Switching Threshold, Overvoltage Vout_OV 50 77 120 mV Vout increasing 5
Status reaction Time tST 10 23 33 s 5
Status Output Low Voltage VST_low 0.4 V IST = 1 mA, Vin ≥ 4 V 5
Status Output Sink Current Limitation IST_max 1 mA VST = 0.8 V 5
Status Output Leakage Current IST_leak 2 A Vout = VEN/REF, VST = 5 V 5
Thermal Shutdown Temperature TSD 151 175 200 °C Note 8 5
Thermal Resistance, Junction-to-Ambient (SOIC-8) RJA 115 °C/W Note 5: 645 mm2 (1 in2) 1 oz copper, FR4 PCB 4
Thermal Reference, Junction-to-Case Top (SOIC-8) RJT 11.5 °C/W Note 5 4

CAD (KiCad official)

  • Symbol: NCV4254CDSTR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncv4254cdstr2g-etched.step / ncv4254cdstr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncv4254cdstr2g.step / ncv4254cdstr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (17 pp, sha256 6d682e1e389ebefd, retrieved 2026-10-27, 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