ADM7154ACPZ-2.5-R7

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

The ADM7154ACPZ-2.5-R7 is a fixed-output linear regulator providing 2.5 V at up to 600 mA load current. It operates from an input voltage range of 2.3 V to 5.5 V with a typical dropout voltage of 120 mV at full load. The device features ultralow noise, delivering 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.5 nV/√Hz spectral density (10 kHz to 1 MHz). Power supply rejection ratio reaches 90 dB from 200 Hz to 200 kHz. Quiescent current is 4 mA at no load, dropping to 0.2 µA in shutdown. Initial output accuracy is ±0.5%. It includes precision enable functionality and thermal overload protection.

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

• Ultralow noise architecture optimized for RF applications
• High power supply rejection ratio across wide frequency ranges
• Precision enable pin with programmable thresholds
• Stable operation with standard ceramic capacitors

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

• PLLs and VCOs requiring low-noise regulation
• Communications infrastructure equipment
• Backhaul and microwave links

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

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ACPZ designation corresponds to the LFCSP package variant required for your PCB layout. Ensure the -2.5 output voltage matches the design specification, as other fixed voltages exist within the ADM7154 family. Check manufacturer documentation for current availability status.

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

Select this component for designs requiring high PSRR and minimal output noise without external filtering components. The fixed 2.5 V output eliminates the need for external resistors used in adjustable variants. Ensure input voltage remains above 2.3 V and consider the 600 mA current limit for load requirements. Verify thermal performance based on PCB layout and ambient conditions.

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

This part belongs to the ADM7154 series of ultra-low noise linear regulators designed for radio frequency applications. It shares architectural similarities with the ADM7155 but offers fixed output options instead of adjustable configurations. The device complements higher voltage regulators like the ADM7150 by providing specialized low-voltage, low-noise performance in a compact footprint.

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

ADM7154ACPZ-3.3-R7 provides identical electrical characteristics except for a 3.3 V fixed output. ADM7154ACPZ-1.8-R7 offers the same performance with a 1.8 V fixed output. For adjustable output requirements within the same voltage range, consider the ADM7155ACPZ series.