NCP170AXV120T2G

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

The NCP170AXV120T2G is a fixed-output low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a stable 1.2 V output with a maximum load current of 150 mA. The device operates within an input voltage range of 2.2 V to 5.5 V and maintains an ultra-low quiescent current of 500 nA. It features a typical power supply rejection ratio (PSRR) of 57 dB and exhibits a dropout voltage of 170 mV at full load. The regulator ensures high precision with a line regulation of 0.05 %/V and load regulation of 1 mV. It is housed in a compact SOT-563-6 surface-mount package and supports operation across a temperature range from -40 °C to +85 °C.

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

• Ultra-low quiescent current consumption for extended battery life
• Active discharge circuitry to rapidly reduce output voltage upon shutdown
• High power supply rejection ratio for effective noise filtering
• Fixed 1.2 V output with tight voltage regulation accuracy

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

• Portable consumer electronics requiring efficient power management
• Battery-powered devices needing minimal standby current drain
• RF and communication modules sensitive to power supply noise
• Embedded systems utilizing CMOS logic families

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

Verify the specific suffix 'AXV' against official onsemi documentation to confirm the exact output voltage, package type, and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the SOT-563-6 package. Cross-reference the datasheet revision date to confirm compliance with current environmental standards such as RoHS. Confirm that the active discharge feature aligns with your system's power-down requirements.

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

Select this component when a fixed 1.2 V rail is required with minimal static power consumption. The 150 mA output capability suits moderate load applications. The SOT-563-6 package offers space efficiency compared to larger alternatives. Consider the 57 dB PSRR for noise-sensitive circuits. Verify that the 2.2 V minimum input voltage meets your system's lowest operating battery level.

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

This part belongs to the NCP170 series of ultra-low IQ CMOS LDO regulators. The series includes various fixed output voltages and package options like SOT-23-5 and XDFN-4. The NCP170AXV120T2G specifically utilizes the SOT-563-6 form factor. It shares core architectural features with other members, including active discharge and high PSRR, tailored for portable applications.

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

Check for direct pin-compatible substitutes within the NCP170 family offering different output voltages or packages. Verify if alternative manufacturers provide equivalent 1.2 V, 150 mA LDOs with similar quiescent current and PSRR specifications. Ensure any replacement maintains the active discharge functionality if required by the design.