LP2951ACMX

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

The LP2951ACMX is an adjustable micropower low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It provides a maximum output current of 100 mA with a typical quiescent current of 75 µA. The device supports an input voltage range up to 30 V and delivers an adjustable output voltage between 1.24 V and 29 V. It features a maximum dropout voltage of 80 mV at 100 µA and 450 mV at 100 mA. Line and load regulation are both specified at 0.1%. The component operates within a temperature range of -40°C to +125°C and is housed in an 8-pin VSSOP package.

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

• Adjustable output voltage capability spanning from 1.24 V to 29 V for flexible design integration
• Micropower operation with low quiescent current consumption to extend battery life
• Low dropout voltage performance ensuring efficient regulation under minimal headroom conditions
• Integrated protection mechanisms including thermal shutdown, current limiting, and reverse battery protection

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

• Battery-powered portable electronic devices requiring low standby current
• Consumer electronics utilizing single-cell or multi-cell battery supplies
• Industrial control systems needing stable regulated power from varying input sources
• Communication equipment requiring reliable linear regulation in compact form factors

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

Verify the specific suffix 'CMX' corresponds to the VSSOP-8 tape-and-reel packaging configuration. Confirm that the 'A' grade designation meets the required line and load regulation specifications for your application. Ensure compatibility with the intended PCB footprint for the 8-pin small outline package. Check RoHS compliance status as indicated by the NOPB suffix if lead-free assembly is mandatory. Validate the manufacturer's datasheet version for any updates regarding operating conditions.

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

Select this component when designing circuits that demand high efficiency from batteries due to its low quiescent current. It is suitable for applications where the input voltage varies significantly but remains above the minimum dropout threshold. Consider the thermal dissipation capabilities of the VSSOP package for high ambient temperatures. This regulator is ideal for replacing older fixed-voltage regulators to allow for customizable output voltages without changing the core topology.

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

The LP2951ACMX belongs to the LP2951 series of adjustable micropower voltage regulators from Texas Instruments. This family is designed for applications requiring low noise and high power supply rejection ratio. The device integrates error amplifier circuitry and precision reference to maintain stable output. It is part of TI's broader portfolio of linear regulators aimed at optimizing power management in space-constrained and energy-sensitive designs.

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

LP2951ACM/NOPB: Same functional specifications but in a different package type (SOIC-8 vs VSSOP-8). Verify pinout compatibility before substitution.