LP2985AIM5X-2.5/NOPB

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

The LP2985AIM5X-2.5/NOPB is a micropower, low-noise, ultra-low-dropout linear regulator manufactured by Texas Instruments. It provides a fixed positive output voltage of 2.5V with a maximum load current capability of 150mA. The device operates within an input voltage range of 3.6V to 16V and features a typical dropout voltage of 280mV at full load. It utilizes a five-pin SOT-23 surface-mount package and includes internal protection against overcurrent, thermal overload, and short circuits.

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

• Ultra-low quiescent current consumption designed for battery-powered applications
• Capable of driving ceramic capacitors with equivalent series resistance as low as 5 milliohms
• Integrated shutdown function reduces supply current to less than 1 microampere
• Low output noise performance suitable for sensitive analog circuitry

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

• Battery-operated portable electronic devices
• Wireless communication equipment power supplies
• Handheld instrumentation systems
• Low-noise analog signal conditioning circuits

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

Verify the manufacturer designation on official documentation, as the component originates from National Semiconductor but is currently distributed under the Texas Instruments brand portfolio. Confirm that the specific suffix indicates lead-free (NOPB) compliance and RoHS standards before procurement. Ensure the ordering part number matches the required fixed output voltage variant to avoid functional mismatches in the design.

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

Select this regulator when a stable 2.5V rail is required with minimal power loss during discharge cycles. The device is appropriate for designs utilizing small form-factor PCBs due to its compact SOT-23 footprint. Consider the low ESR requirement for output capacitors to ensure stability without external compensation components.

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

This component belongs to the LP2985-N family of micropower LDO regulators. The family is characterized by high performance in low-current applications, offering superior line and load regulation compared to standard regulators. The specific model integrates precision bandgap references to maintain accuracy across the specified temperature range.

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

Direct substitutes include other variants within the LP2985 series such as LP2985AIM5X-3.3/NOPB or LP2985AIM5X-5.0/NOPB if different voltage levels are acceptable. Cross-reference with LP2983 series parts for similar current capabilities but verify pinout compatibility.