LP2980AIM5-5.0 Equivalent & Substitute Parts

Part Overview

The LP2980AIM5-5.0 is a linear voltage regulator IC from Texas Instruments, delivering a fixed 5V output at 50mA in a SOT-23-5 surface mount package. This device is classified as Last Time Buy, indicating end-of-life status. The part provides positive fixed output configuration with integrated enable control and comprehensive protection features including over-current, over-temperature, and short-circuit protection. Due to its Last Time Buy status, identifying equivalent and substitute parts is essential for design continuity and long-term supply chain planning.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	50mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.22V @ 50mA
Quiescent Current	95 µA
PSRR	63dB (1kHz)
Package	SOT-23-5 (SC-74A)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitution for the LP2980AIM5-5.0 is determined by the following critical parameters: fixed 5V output voltage, 50mA output current capability, SOT-23-5 package compatibility, maximum 16V input voltage rating, and operating temperature range of -40°C to 125°C. Parts meeting these core electrical and mechanical specifications are classified as parametric equivalents. The LP2980 series variants (LP2980AIM5-5.0/NOPB, LP2980IM5-5.0, LP2980IM5-5.0/NOPB, LP2980IM5X-5.0/NOPB, LP2980AIM5X-5.0/NOPB) maintain identical electrical performance with differences only in packaging format (Cut Tape vs. Tape & Reel) and product status. The LP2982 series (LP2982AIM5-5.0/NOPB, LP2982AIM5X-5.0/NOPB, LP2982IM5-5.0/NOPB) represents a related variant with slightly different performance characteristics. STMicroelectronics LD2980 series parts (LD2980ABM50TR, LD2980CM50TR) provide cross-manufacturer equivalence with comparable electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Dropout Voltage	Quiescent Current	PSRR	Product Status	Packaging
LP2980AIM5-5.0	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Last Time Buy	Cut Tape (CT) & Digi-Reel®
LP2980AIM5-5.0/NOPB	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LP2980AIM5X-5.0/NOPB	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LP2980IM5-5.0	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Obsolete	Cut Tape (CT) & Digi-Reel®
LP2980IM5-5.0/NOPB	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LP2980IM5X-5.0/NOPB	Texas Instruments	5V	50mA	0.22V @ 50mA	95 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LP2982AIM5-5.0/NOPB	Texas Instruments	5V	50mA	0.33V @ 80mA	95 µA	45dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LP2982AIM5X-5.0/NOPB	Texas Instruments	5V	50mA	0.33V @ 80mA	95 µA	45dB (1kHz)	Active	Tape & Reel (TR)
LP2982IM5-5.0/NOPB	Texas Instruments	5V	50mA	0.33V @ 80mA	95 µA	45dB (1kHz)	Active	Tape & Reel (TR)
LD2980ABM50TR	STMicroelectronics	5V	50mA	0.225V @ 50mA	150 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®
LD2980CM50TR	STMicroelectronics	5V	50mA	0.225V @ 50mA	150 µA	63dB (1kHz)	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For direct replacement of the LP2980AIM5-5.0, the LP2980AIM5-5.0/NOPB is the primary equivalent, offering identical electrical specifications with Active product status and superior long-term availability. The LP2980AIM5X-5.0/NOPB and LP2980IM5X-5.0/NOPB variants provide equivalent performance with higher inventory levels, suitable for high-volume applications. The LP2980IM5-5.0/NOPB is functionally equivalent but represents an intermediate product status designation.

The LP2982 series (LP2982AIM5-5.0/NOPB, LP2982AIM5X-5.0/NOPB, LP2982IM5-5.0/NOPB) exhibits reduced PSRR performance (45dB versus 63dB) and higher dropout voltage (0.33V @ 80mA versus 0.22V @ 50mA), making these suitable only for applications where these performance differences are acceptable.

STMicroelectronics LD2980 series parts (LD2980ABM50TR, LD2980CM50TR) provide cross-manufacturer substitution with comparable electrical performance. The LD2980 variants maintain 63dB PSRR and similar dropout voltage characteristics, with higher quiescent current (150 µA versus 95 µA). Both parts carry Active product status with substantial inventory availability.

All substitute parts maintain SOT-23-5 package compatibility, -40°C to 125°C operating temperature range, and ROHS3 compliance. Selection should prioritize parts with Active product status for new designs and long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can LP2980AIM5-5.0/NOPB be used as a direct replacement for LP2980AIM5-5.0?

A: Yes. Both parts deliver identical electrical specifications: 5V fixed output, 50mA output current, 0.22V dropout voltage at 50mA, 95 µA quiescent current, and 63dB PSRR. The primary difference is product status; LP2980AIM5-5.0/NOPB is Active while the original is Last Time Buy. The /NOPB designation indicates lead-free plating compliance.

Q: What is the difference between LP2980 and LP2982 series?

A: Both series deliver 5V fixed output at 50mA in SOT-23-5 packages. The LP2982 exhibits lower PSRR (45dB versus 63dB) and higher dropout voltage (0.33V @ 80mA versus 0.22V @ 50mA). The LP2982 is suitable for applications where these performance differences do not impact circuit operation.

Q: Are STMicroelectronics LD2980 parts compatible with Texas Instruments LP2980?

A: Yes, for most applications. Both LD2980ABM50TR and LD2980CM50TR maintain 5V output, 50mA current, SOT-23-5 package, and 63dB PSRR. The LD2980 variants have higher quiescent current (150 µA versus 95 µA), which may affect power consumption in battery-powered designs. Dropout voltage is comparable at 0.225V versus 0.22V.

Q: What packaging options are available?

A: Texas Instruments LP2980 variants are supplied in Cut Tape (CT) & Digi-Reel® format. LP2982 series parts are available in both Cut Tape and Tape & Reel (TR) formats. All parts use SOT-23-5 (SC-74A) package case. Selection depends on assembly process requirements and volume.

Q: Which substitute part has the best availability?

A: LP2980AIM5X-5.0/NOPB shows the highest inventory level at 35,400 pieces, followed by LD2980CM50TR at 47,801 pieces. Both are Active status parts suitable for immediate procurement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and are REACH Unaffected, meeting current environmental and regulatory requirements.

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