NCV8720BMTW150TBG

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The NCV8720BMTW150TBG is a fixed-output CMOS voltage regulator providing 1.5 V at up to 350 mA. It features an NMOS pass transistor and a separate bias supply (VBIAS) for optimized performance in battery-operated applications. The device operates with an input voltage range of 0.8 V to 5.5 V and a bias voltage range of 2.4 V to 5.5 V. It offers ±2% output accuracy over temperature, ultra-low dropout of 110 mV typically at full load, and very low bias current. Packaged in a compact 6-WDFN (2x2 mm) format with wettable flanks, it includes built-in soft-start, thermal shutdown, and undervoltage lockout.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Dual-rail architecture utilizing a separate bias supply (VBIAS) to power internal control circuits while regulating the main output from VIN.
• NMOS pass transistor topology ensures reduced impact on loop stability compared to PMOS designs and allows for very low operating voltage differences.
• Built-in monotonic soft-start limits inrush current during startup, protecting downstream components and power sources.
• Integrated protection mechanisms including thermal shutdown, current limiting, and undervoltage lockout ensure reliable operation under fault conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Automotive, consumer, and industrial equipment point-of-load regulation
• Battery-powered equipment requiring low quiescent current
• FPGA, DSP, and logic power supplies
• Switching power supply post-regulation
• Cameras, DVRs, set-top boxes, and camcorders

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package variant, as the WDFN6 package is available with both wettable and non-wettable flank options. Ensure that the selected part number corresponds to the desired nominal output voltage within the 0.8 V to 2.1 V range. Check for any discontinuation notices regarding specific voltage variants within the NCV8720 family before finalizing procurement plans.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when space constraints and noise sensitivity are critical factors. The dual-supply design requires availability of a secondary bias rail; if only a single supply exists, ensure it can meet the minimum VBIAS requirement relative to the output voltage. Verify that the application load does not exceed the 350 mA continuous output limit. Consider the thermal resistance characteristics and PCB copper area requirements to maintain junction temperature within the specified operating range under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the NCV8720 series of very low dropout linear regulators designed by onsemi. The series targets high-performance applications in automotive and industrial sectors, offering AEC-Q100 qualification. The NCV8720BMTW150TBG specifically denotes the 1.5 V fixed output version housed in the WDFN6 package with wettable flanks, distinguishing it from other voltage variants and package configurations within the same functional family.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct replacements must match the 1.5 V output, 350 mA current capability, and WDFN6 package footprint. Verify compatibility with the dual-supply architecture, as many standard LDOs lack a separate bias pin. Cross-reference pinouts carefully, particularly the enable and ground connections. Note that some older NCV8720 variants without wettable flanks may be discontinued; confirm current availability status for potential substitute part numbers.