LP2982IM5X-3.0 Equivalent & Substitute Parts

Part Overview

The LP2982IM5X-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output at 50mA in a SOT-23-5 surface mount package. This device is classified as Obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The LP2982IM5X-3.0 provides Enable control, Over Current, Over Temperature, and Short Circuit protection across an operating temperature range of -40°C to 125°C.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	3V
Voltage - Input (Max)	16V
Current - Output	50mA
Voltage Dropout (Max)	0.33V @ 80mA
Current - Quiescent (Iq)	95 µA
PSRR	45dB (1kHz)
Control Features	Enable
Protection Features	Over Current, Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LP2982IM5X-3.0 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Direct Substitutes): Parts sharing identical output voltage (3V), output current (50mA), input voltage rating (16V), package type (SOT-23-5), control features (Enable), and protection features (Over Current, Over Temperature, Short Circuit). These parts maintain the same functional specifications and pinout compatibility. Key differentiators within this group include voltage dropout characteristics, quiescent current, PSRR performance, and product status (Active vs. Obsolete).

Manufacturer Recommended Alternatives: Parts with higher output current capability (150mA or 500mA) that maintain the same 3V output voltage, 16V input maximum, SOT-23-5 package, and core protection features. These are suitable for applications requiring higher current delivery while maintaining voltage regulation specifications.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Product Status	RoHS Status
LP2982IM5X-3.0	Texas Instruments	3V	50mA	16V	0.33V @ 80mA	95 µA	45dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
LP2980IM5-3.0/NOPB	Texas Instruments	3V	50mA	16V	0.22V @ 50mA	95 µA	63dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
LP2980AIM5-3.0/NOPB	Texas Instruments	3V	50mA	16V	0.22V @ 50mA	95 µA	63dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
LP2980AIM5X-3.0/NOPB	Texas Instruments	3V	50mA	16V	0.22V @ 50mA	95 µA	63dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
LP2980IM5X-3.0/NOPB	National Semiconductor	3V	50mA	16V	0.22V @ 50mA	95 µA	63dB (1kHz)	SOT-23-5	Active	Not Specified
LP2982AIM5-3.0/NOPB	Texas Instruments	3V	50mA	16V	0.33V @ 80mA	95 µA	45dB (1kHz)	SOT-23-5	Obsolete	ROHS3 Compliant
LP2982AIM5X-3.0/NOPB	Texas Instruments	3V	50mA	16V	0.33V @ 80mA	95 µA	45dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
LD2985BM30R	STMicroelectronics	3V	150mA	16V	0.575V @ 150mA	150 µA	45dB (1kHz)	SOT-23-5	Active	ROHS3 Compliant
SPX3819M5-L-3-0/TR	MaxLinear, Inc.	3V	500mA	16V	0.7V @ 500mA	8 µA	Not Specified	SOT-23-5	Active	RoHS Compliant

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred for Pin-Compatible Replacement):

LP2980 series devices (LP2980IM5-3.0/NOPB, LP2980AIM5-3.0/NOPB, LP2980AIM5X-3.0/NOPB) provide superior performance characteristics with lower dropout voltage (0.22V @ 50mA vs. 0.33V @ 80mA) and higher PSRR (63dB vs. 45dB at 1kHz). All LP2980 variants maintain Active product status and ROHS3 compliance. LP2980AIM5X-3.0/NOPB is recommended as the primary substitute due to Active status and full compliance documentation.

LP2982AIM5X-3.0/NOPB maintains identical electrical specifications to the LP2982IM5X-3.0 with Active product status and ROHS3 compliance, making it suitable for direct replacement in existing designs.

Higher Current Alternatives (For Applications Requiring Increased Current Capacity):

LD2985BM30R (STMicroelectronics) provides 150mA output current while maintaining 3V output and 16V input maximum. This device is suitable for applications where the 50mA specification of the original part is insufficient. ROHS3 compliance and Active status are confirmed.

SPX3819M5-L-3-0/TR (MaxLinear) delivers 500mA output current in the same SOT-23-5 package with significantly lower quiescent current (8 µA). This option is appropriate for high-current applications requiring extended battery life or low standby power consumption. RoHS compliance is confirmed with Active product status.

Frequently Asked Questions (FAQ)

Q: Can LP2980 series parts directly replace the LP2982IM5X-3.0?

A: Yes. LP2980 variants (LP2980IM5-3.0/NOPB, LP2980AIM5-3.0/NOPB, LP2980AIM5X-3.0/NOPB) are pin-compatible direct substitutes. All maintain identical 3V output voltage, 50mA output current, 16V input maximum, SOT-23-5 package, Enable control, and core protection features. LP2980 devices offer improved dropout voltage and PSRR performance.

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

A: Both series deliver 3V at 50mA in SOT-23-5 packages. LP2980 devices feature lower dropout voltage (0.22V @ 50mA) and higher PSRR (63dB at 1kHz) compared to LP2982 (0.33V @ 80mA, 45dB at 1kHz). LP2980 series is recommended for applications sensitive to dropout voltage or requiring superior noise rejection.

Q: Are all substitute parts ROHS3 compliant?

A: LP2980 series, LP2982AIM5X-3.0/NOPB, and LD2985BM30R are ROHS3 compliant. SPX3819M5-L-3-0/TR is RoHS compliant. Verify specific compliance requirements for your application before selection.

Q: Can I use LD2985BM30R or SPX3819M5-L-3-0/TR as direct replacements?

A: These are not pin-compatible direct replacements. LD2985BM30R and SPX3819M5-L-3-0/TR provide higher output current (150mA and 500mA respectively) and are suitable only for applications where increased current capacity is required and circuit design accommodates the different electrical characteristics (higher dropout voltage, different quiescent current).

Q: What packaging options are available for substitute parts?

A: All substitute parts are available in SOT-23-5 surface mount package (SC-74A, SOT-753). Packaging variants include Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), and Bulk options depending on the specific part number and supplier.

Q: Which substitute offers the best performance improvement?

A: LP2980AIM5X-3.0/NOPB provides the best performance improvement with 0.22V dropout voltage (vs. 0.33V) and 63dB PSRR (vs. 45dB), while maintaining identical current specifications and Active product status with full ROHS3 compliance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message