onsemi NCV8164ASN250T1G

Overview

This exact ASN orderable regulates a 2.5 V rail at loads up to 300 mA when input headroom and board temperature permit. The automotive NCV prefix identifies the AEC-Q100-qualified family. The output requires local ceramic bypassing and the power-good output requires a pull-up.

Key Advantages

• Fixed 2.5 V output with ±2% accuracy under the stated electrical-table conditions.
• 300 mA output with 125 mV typical / 200 mV maximum dropout at 300 mA for this voltage and TSOP-5 package.
• 30 microamperes typical no-load quiescent current and enable-controlled shutdown.
• 9 microvolts RMS typical fixed-version output noise under the manufacturer test.
• Power-good indication and active output discharge support rail sequencing.

Feature Summary

• Recommended VIN 1.6 V to 5.5 V, with sufficient VIN-to-VOUT headroom.
• Use a 1 microfarad ceramic capacitor at both IN and OUT, placed near the device.
• EN low below 0.25 V disables; EN high above 0.7 V enables.
• PG is open collector; use a 10 kΩ to 100 kΩ pull-up to a suitable input or output rail.
• Output current limiting, thermal shutdown, and 260 Ω typical active discharge resistance are described by the onsemi data sheet.

Package & Footprint

onsemi lists NCV8164ASN250T1G in TSOP-5, Case 483, Pb-free, 3000 units per tape and reel. LCDCHIP records SOT-23-5 Thin, TSOT-23-5. The registered JPG shows a five-lead body consistent with the package family; use the current Case 483 drawing for dimensions and the land pattern.

Pin Functions

Key Specifications

Typical values are not guaranteed limits. Consult the onsemi test conditions and operating-area guidance.

Replacement Considerations

Check fixed 2.5 V output, 300 mA rating, TSOP-5 pin map, PG pull-up behavior, active discharge, EN thresholds, output capacitance, dropout, thermal limits, and automotive qualification. No internal alternative is linked without an exact production API match and engineering review.

Manufacturer Information

The onsemi NCV8164 data sheet lists NCV8164ASN250T1G as the 2.5 V TSOP-5 option with MP top code, active output discharge and 3000-unit tape-and-reel packing. The manufacturer identifies this NCV family as AEC-Q100 qualified and PPAP capable.

Applications

• Automotive communication and sensor rails.
• In-vehicle networking and infotainment electronics.
• Noise-sensitive RF and analog subcircuits.
• Enabled local power rails with power-good sequencing.

Quality & Authenticity

Verify the full NCV8164ASN250T1G order code, MP top code, Case 483 body, pin-one orientation, Pb-free finish, reel label, lot traceability and automotive documentation. The code and image alone do not prove authenticity.

FAQ

What is the output? Fixed 2.5 V.

Is PG push-pull? No. It is open collector and needs a pull-up.

What happens when EN goes low? Regulation stops and the ASN version actively discharges OUT.

Can VIN equal VOUT at 300 mA? No guaranteed regulation; allow for dropout and thermal margin.

Engineering Notice

Check VIN headroom, capacitor effective value under bias, PG pull-up voltage, EN sequencing, dropout across temperature, output-discharge timing and PCB thermal rise. Use current manufacturer mechanical and electrical documents for production release.