NCP6361AFCCT1G

Overview

The NCP6361AFCCT1G is a synchronous step-down DC-to-DC converter optimized for RF Power Amplifiers in 3G/4G wireless systems. It operates with an input voltage range of 2.5V to 5.5V and provides a single adjustable output from 0.4V to 3.5V at up to 2A. The device features PWM control, a bypass mode, and is housed in a compact 9-pin WLCSP package (1.36x1.22mm). Operating temperature ranges from -40°C to 85°C.

Feature Summary

• Synchronous buck topology with integrated bypass mode for high efficiency
• Optimized specifically for powering RF Power Amplifiers in mobile systems
• Compact WLCSP packaging suitable for space-constrained designs

Applications

• RF Power Amplifier supply for 3G wireless systems
• RF Power Amplifier supply for 4G wireless systems
• Mobile device power management

Procurement Notes

Verify the specific suffix 'AFCCT1G' against the manufacturer's official ordering guide to confirm pinout, tape-and-reel quantity, and RoHS compliance status. Ensure the application circuit matches the required input/output voltage ranges and thermal constraints defined in the datasheet. Cross-reference the package dimensions with the PCB footprint library to prevent assembly errors.

Selection Notes

Select this component when designing power stages for 3G or 4G RF Power Amplifiers requiring a compact solution. The fixed 2A current limit and wide input range suit typical mobile battery voltages. Consider the WLCSP form factor if board real estate is critical. Note that the 'B' variant offers spread-spectrum functionality; verify if EMI reduction is required before choosing the 'A' version.

Part Context

This part belongs to the NCP6361 family of specialized regulators designed for wireless infrastructure and handsets. It addresses the need for efficient, low-noise power delivery to sensitive RF components. The family distinguishes between versions with and without spread-spectrum features to manage electromagnetic interference in dense electronic environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing BOMs through direct electrical parameter comparison rather than assuming interchangeability.