LP2983IM5-1.0 Equivalent & Substitute Parts

Part Overview

The LP2983IM5-1.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1V output applications with 150mA current capacity in a SOT-23-5 surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The device provides integrated protection features including over-current, over-temperature, and short-circuit protection, with an enable control feature for power management applications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	1V
Current - Output	150mA
Voltage - Input (Max)	16V
Current - Quiescent (Iq)	95 µA
PSRR	65dB (1kHz)
Operating Temperature	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the LP2983IM5-1.0 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

Output voltage: 1V fixed
Output current capacity: 150mA
Input voltage maximum: 16V
Package type: SOT-23-5 (SC-74A, SOT-753)
Protection features: Over-current, over-temperature, short-circuit protection
Control features: Enable function
Operating temperature range: -40°C ~ 125°C
Quiescent current: 95 µA
PSRR: 65dB (1kHz)

All identified substitute parts maintain identical electrical specifications and mechanical compatibility with the original LP2983IM5-1.0 device.

Parameter Comparison

Parameter	LP2983IM5-1.0	LP2983AIM5X-1.0/NOPB	LP2983IM5X-1.0/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Obsolete
Output Configuration	Positive	Positive	Positive
Output Type	Fixed	Fixed	Fixed
Voltage - Output (Min/Fixed)	1V	1V	1V
Current - Output	150mA	150mA	150mA
Voltage - Input (Max)	16V	16V	16V
Current - Quiescent (Iq)	95 µA	95 µA	95 µA
PSRR	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5
Protection Features	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit
Control Features	Enable	Enable	Enable
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

LP2983AIM5X-1.0/NOPB is the primary substitute for new designs. This part maintains full electrical and mechanical compatibility with the LP2983IM5-1.0 while offering active product status and ROHS3 compliance. The tape and reel packaging supports production volume requirements. This part is preferred for applications requiring regulatory compliance and long-term availability assurance.

LP2983IM5X-1.0/NOPB provides an alternative substitute with identical electrical specifications and ROHS3 compliance. However, this part carries obsolete product status, limiting its suitability for new production designs despite current inventory availability. This option is suitable only for legacy system maintenance or short-term production runs where existing supply chains are established.

Selection between these substitutes should prioritize LP2983AIM5X-1.0/NOPB for new designs due to active product status and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can LP2983AIM5X-1.0/NOPB directly replace LP2983IM5-1.0 without circuit modifications?

A: Yes. Both parts share identical electrical specifications including 1V fixed output, 150mA current capacity, 16V maximum input voltage, and SOT-23-5 package configuration. No circuit modifications are required for direct substitution.

Q: What is the difference between LP2983IM5-1.0 and LP2983AIM5X-1.0/NOPB?

A: The primary differences are product status and compliance certifications. LP2983AIM5X-1.0/NOPB is active and ROHS3 compliant, while LP2983IM5-1.0 is obsolete and RoHS non-compliant. Electrical performance and package specifications are identical.

Q: Why is LP2983IM5X-1.0/NOPB listed as a substitute if it is also obsolete?

A: LP2983IM5X-1.0/NOPB maintains full electrical and mechanical compatibility with the original part. However, its obsolete status makes it unsuitable for new production designs. It is listed for reference and legacy system support only.

Q: Are there packaging differences between these parts?

A: LP2983IM5-1.0 and LP2983IM5X-1.0/NOPB do not specify packaging format. LP2983AIM5X-1.0/NOPB is supplied in tape and reel format, which is standard for production volume applications. All three parts use the SOT-23-5 package configuration.

Q: What compliance certifications apply to these parts?

A: LP2983AIM5X-1.0/NOPB and LP2983IM5X-1.0/NOPB are ROHS3 compliant and REACH unaffected. LP2983IM5-1.0 is RoHS non-compliant. All parts carry EAR99 ECCN classification.

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