LP2950CZ-5.0 Equivalent & Substitute Parts Reference Guide

Part Overview

LP2950CZ-5.0 is a positive fixed linear voltage regulator IC from Texas Instruments, category Power Management (PMIC). It features a single output rated at 5V, 100mA, with through-hole mounting in a TO-92-3 (TO-226AA) package. The part status is Obsolete, necessitating the identification and selection of alternative models that match both electrical performance and mechanical specifications for design continuity and inventory maintenance.

Key Parameters

Parameter	Value
Manufacturer Part Number	LP2950CZ-5.0
Category	Power Management (PMIC)
Description	IC REG LINEAR 5V 100MA TO92-3
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	5V
Voltage Dropout (Max)	0.6V @ 100mA
Current - Output	100mA
Current - Quiescent (Iq)	120 µA
Current - Supply (Max)	14 mA
Protection Features	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package	TO-92-3
RoHS Status	RoHS non-compliant
Inventory	1000300 Pcs
Part Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts are identified strictly according to the following parameters: output configuration, output type, number of regulators, input voltage rating, fixed output voltage, maximum output current, package type, mounting type, protection features, and operating temperature range. A part is considered a valid substitute if these values match or exceed the requirements of LP2950CZ-5.0 without introducing unlisted parameters or assumptions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Output Configuration	Output Type	Number of Regulators	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage Dropout (Max)	Current - Output	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Protection Features	RoHS Status	Part Status
LP2950CZ-5.0	Texas Instruments	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.6V @ 100mA	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92-3	Over Current, Over Temperature	RoHS non-compliant	Obsolete
LP2950ACZ-5.0/NOPB	Texas Instruments	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.6V @ 100mA	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92-3	Over Current, Over Temperature	ROHS3 Compliant	Active
UA78L05ACLPM	Texas Instruments	Power Management (PMIC)	Positive	Fixed	1	20V	5V	1.7V @ 40mA	100mA	0°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-92-3	Over Current, Over Temperature, Reverse Polarity, Short Circuit	ROHS3 Compliant	Last Time Buy
UA78L05ACLPME3	Texas Instruments	Power Management (PMIC)	Positive	Fixed	1	20V	5V	1.7V @ 40mA	100mA	0°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-92-3	Over Current, Over Temperature, Reverse Polarity, Short Circuit	ROHS3 Compliant	Last Time Buy
LP2950CZ-5.0/NOPB	Texas Instruments	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.6V @ 100mA	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92-3	Over Current, Over Temperature	Vendor Undefined	Active
L78L05ABZ	STMicroelectronics	Power Management (PMIC)	Positive	Fixed	1	30V	5V	-	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92-3	Over Current, Over Temperature, Short Circuit	ROHS3 Compliant	Active
LP2950ACZ-5.0G	onsemi	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.45V @ 100mA	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 Long Body	TO-92 (TO-226)	Over Current, Over Temperature	ROHS3 Compliant	Active
LP2950CZ-5.0G	onsemi	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.45V @ 100mA	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 Long Body	TO-92 (TO-226)	Over Current, Over Temperature	ROHS3 Compliant	Active
LT1121CZ-5#PBF	Analog Devices Inc.	Power Management (PMIC)	Positive	Fixed	1	30V	5V	0.7V @ 150mA	150mA	0°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92-3	Over Temperature, Reverse Polarity	ROHS3 Compliant	Active
MC78L05ABPG	onsemi	Power Management (PMIC)	Positive	Fixed	1	30V	5V	-	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 Long Body	TO-92 (TO-226)	Over Temperature, Short Circuit	ROHS3 Compliant	Active
MC78L05ACPG	onsemi	Power Management (PMIC)	Positive	Fixed	1	30V	5V	-	100mA	0°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 Long Body	TO-92 (TO-226)	Over Temperature, Short Circuit	ROHS3 Compliant	Active
NCV78L05ABPG	onsemi	Power Management (PMIC)	Positive	Fixed	1	30V	5V	-	100mA	-40°C ~ 125°C	Through Hole	TO-226-3, TO-92-3 Long Body	TO-92 (TO-226)	Over Temperature, Short Circuit	ROHS3 Compliant	Active

Engineering Selection Recommendations

Substitute parts within the Power Management (PMIC) category are selected strictly based on product status, RoHS compliance, and matching certifications. The LP2950CZ-5.0 is obsolete and RoHS non-compliant; most substitute parts are active and ROHS3 compliant, which supports environmental requirements and continuous sourcing. For designs requiring compliance, select substitute models with ROHS3 status. Ensure part status is active or last time buy for supply stability.

Frequently Asked Questions (FAQ)

Q1: Which parameters are mandatory for substituting LP2950CZ-5.0?
A1: Substitution requires matching output configuration, output type, number of regulators, maximum output current, fixed output voltage, input voltage rating, package type, mounting type, protection features, and operating temperature range.

Q2: Is package compatibility an issue among these substitute models?
A2: Substitute parts feature through hole mounting and TO-92-3 (TO-226AA or long body) packages, ensuring pinout and footprint compatibility with LP2950CZ-5.0.

Q3: Why is RoHS status significant for substitute selection?
A3: RoHS status determines suitability for designs with environmental or regulatory constraints. Substitute parts with ROHS3 compliant status fulfill modern lead-free requirements.

Q4: How should part status affect component selection?
A4: Prefer substitute parts with "Active" or "Last Time Buy" status for long-term availability and reliable sourcing; "Obsolete" parts are unsuitable for new designs.

Q5: Can the output current or voltage dropout vary among substitutes?
A5: Key output parameters must meet or exceed those of LP2950CZ-5.0; minor differences in voltage dropout or output current are provided explicitly for direct comparison.

Q6: Are there engineering considerations regarding substitute protection features?
A6: All substitutes provide at least over current and over temperature protection, in alignment with LP2950CZ-5.0; some offer additional protection features per the input specifications.

Q7: What should be confirmed before choosing a substitute part?
A7: Confirm that all electrical and mechanical parameters match the application requirements as specified in the component lists and comparison tables above.

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