NCP163BMX1825TBG

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

The NCP163BMX1825TBG is a fixed-output low dropout regulator from onsemi, providing a regulated 1.825 V output with a maximum current of 250 mA. It operates within an input voltage range of 2.2 V to 5.5 V and features ultra-low noise (6.5 µVRMS) and high power supply rejection ratio (92 dB at 1 kHz). The device includes active discharge functionality, integrated soft-start, and thermal shutdown protection. It is housed in an XDFN4 package (Case 711AJ) measuring 1 mm x 1 mm x 0.4 mm.

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

• Ultra-low noise performance designed for RF and sensitive analog circuits
• High power supply rejection ratio ensuring stable operation under varying load conditions
• Integrated active discharge function for rapid output voltage decay upon disable
• Robust protection mechanisms including thermal shutdown and current limiting

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

• Battery-powered equipment requiring efficient power management
• Wireless LAN devices needing clean power supplies
• Smartphones and tablets utilizing compact power solutions
• Cameras, DVRs, set-top boxes, and camcorders

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

Verify the specific suffix 'B' indicates non-active discharge configuration compared to 'A' variants. Confirm the 'MX' designation corresponds to the XDFN4 package type. Ensure the '1825' code matches the required 1.825 V output voltage. Check RoHS compliance status as per the manufacturer's latest documentation before finalizing procurement orders.

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

Select this component when a fixed 1.825 V rail is required with minimal footprint. The XDFN4 package suits space-constrained designs. Consider the non-active discharge feature if external pull-down resistors are preferred or if the discharge path must be controlled differently. Evaluate thermal dissipation requirements based on the PCB copper area and ambient temperature conditions.

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

This part belongs to the NCP163 series of ultra-low noise LDO regulators. The series offers various fixed voltage options ranging from 1.2 V to 5.3 V. It is available in multiple packages including WLCSP4, XDFN4, and SOT23-5L. The NCP163 is optimized for applications demanding high PSRR and low quiescent current, making it suitable for portable electronics and communication devices.

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

Direct substitutes include other NCP163 variants with different output voltages or package types, such as NCP163AMX1825TBG for active discharge versions. Cross-referencing pinouts and electrical characteristics is essential when replacing with similar LDOs from other manufacturers.