NCV8855BMNR2G

Overview

The NCV8855BMNR2G is a multiple output controller and regulator IC from onsemi, designed for automotive radio systems and instrument clusters. It integrates a high-side load switch, an SMPS buck controller with adjustable current limit, an SMPS buck regulator with an internal 300 mΩ NMOS switch, and two LDO linear regulator controllers featuring current limit and short circuit protection. The device operates within a VIN range of 9.0 V to 18.0 V and includes an internally set switching frequency of 170 kHz with external synchronization capability via a SYNC pin.

Feature Summary

• Integrates multiple power management functions including SMPS control, regulation, and LDO control in a single package
• Includes a high-side load switch suitable for powering peripherals like displays or antennas
• Features adjustable current limiting for the SMPS controller and built-in protection mechanisms for LDOs

Applications

• Automotive radio system power supply
• Instrument cluster power distribution
• Powering tuner, CD logic, and audio processors
• Supplying graphics displays and CAN transceivers in clusters

Procurement Notes

Verify the specific suffix 'BMNR2G' against official onsemi documentation to confirm tape and reel packaging details and temperature grade specifications. Ensure compatibility with automotive environmental standards required for your application. Cross-reference the datasheet revision date to ensure access to the latest electrical characteristics and mechanical drawings before finalizing procurement.

Selection Notes

Select this component when a consolidated solution for automotive infotainment or cluster power is required. It is suitable for designs needing both switched-mode efficiency and linear regulation stability. Consider the integrated high-side switch for peripheral control needs. Evaluate the 170 kHz fixed frequency against EMI constraints and external synchronization requirements for multi-rail systems.

Part Context

This part belongs to the NCV8855 series of multi-output power management ICs. It is often paired with ultra-low quiescent current LDOs, such as the NCV861x series, to create comprehensive eight-output power solutions for complex automotive electronics. The series addresses specific industry test pulses and load conditions for vehicle reliability.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult onsemi technical support for direct replacements or evaluate other members of the NCV88xx family if pin-to-pin compatibility is required.