LP2985AIM5-3.6 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2985AIM5-3.6 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current at a fixed 3.6V output voltage in a compact SOT-23-5 surface mount package. The main part is marked as "Not For New Designs," making identification of active equivalent and substitute parts essential for ongoing production and design updates.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	3.6V
Voltage - Input (Max)	16V
Current - Output	150mA
Voltage Dropout (Max)	0.58V @ 150mA
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Operating Temperature	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Short Circuit

Substitute Part Grouping Explanation

Substitute parts for the LP2985AIM5-3.6 are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Fixed output voltage of 3.6V
Output current capability of 150mA
Maximum input voltage of 16V
SOT-23-5 package configuration
Surface mount mounting type
Operating temperature range of -40°C to 125°C
Enable control feature
Protection against over current, over temperature, and short circuit conditions

Parts are further differentiated by product status (Active vs. Not For New Designs), RoHS compliance, and packaging format (Tape & Reel, Cut Tape, or standard).

Parameter Comparison

Parameter	LP2985AIM5-3.6	LP2985AIM5-3.6/NOPB	LP2985AIM5X-3.6/NOPB	LP2985IM5-3.6/NOPB	MIC5205-3.6YM5-TR
Manufacturer	Texas Instruments	Texas Instruments	National Semiconductor	Texas Instruments	Microchip Technology
Product Status	Not For New Designs	Active	Active	Active	Active
Output Voltage	3.6V	3.6V	3.6V	3.6V	3.6V
Output Current	150mA	150mA	150mA	150mA	150mA
Input Voltage (Max)	16V	16V	16V	16V	16V
Voltage Dropout (Max)	0.58V @ 150mA	0.58V @ 150mA	0.58V @ 150mA	0.58V @ 150mA	0.35V @ 150mA
Quiescent Current	95 µA	95 µA	95 µA	95 µA	150 µA
PSRR	45dB (1kHz)	45dB (1kHz)	45dB (1kHz)	45dB (1kHz)	75dB (100Hz)
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)	Bulk	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For new designs and ongoing production, LP2985AIM5-3.6/NOPB is the primary equivalent from Texas Instruments. This part maintains identical electrical specifications while offering Active product status and ROHS3 compliance. The Tape & Reel packaging format supports automated assembly processes.

LP2985IM5-3.6/NOPB provides an alternative from Texas Instruments with Cut Tape and Digi-Reel packaging options, suitable for mixed-volume production environments. This part also carries Active status and ROHS3 compliance.

LP2985AIM5X-3.6/NOPB, sourced from National Semiconductor, delivers equivalent electrical performance with Active product status and ROHS3 compliance. Availability of 4,300 pieces supports medium-volume applications.

MIC5205-3.6YM5-TR from Microchip Technology is a cross-manufacturer substitute with identical output voltage and current ratings. This part features improved voltage dropout performance (0.35V vs. 0.58V) and higher PSRR (75dB at 100Hz vs. 45dB at 1kHz). Quiescent current is higher at 150 µA. All parts share identical package configuration and operating temperature range.

The original LP2985AIM5-3.6 is marked "Not For New Designs" and carries RoHS non-compliance status, making it unsuitable for new production unless legacy support is required.

Frequently Asked Questions (FAQ)

Q: Can LP2985AIM5-3.6/NOPB directly replace LP2985AIM5-3.6?

A: Yes. Both parts deliver identical electrical specifications: 3.6V fixed output, 150mA output current, 0.58V maximum dropout voltage, and SOT-23-5 package. The primary difference is product status (Active vs. Not For New Designs) and RoHS compliance (ROHS3 vs. non-compliant). LP2985AIM5-3.6/NOPB is the recommended choice for new designs.

Q: What is the difference between LP2985IM5-3.6/NOPB and LP2985AIM5-3.6/NOPB?

A: Both parts are from Texas Instruments with identical electrical specifications. The primary difference is packaging format: LP2985AIM5-3.6/NOPB is supplied in Tape & Reel format, while LP2985IM5-3.6/NOPB is available in Cut Tape and Digi-Reel formats. Selection depends on assembly process requirements and volume.

Q: Is MIC5205-3.6YM5-TR a suitable substitute?

A: MIC5205-3.6YM5-TR from Microchip Technology meets all core electrical requirements: 3.6V output, 150mA current, 16V maximum input, and SOT-23-5 package. It offers superior dropout voltage (0.35V vs. 0.58V) and higher PSRR (75dB vs. 45dB). Quiescent current is higher at 150 µA. This part is suitable for applications where improved efficiency is beneficial.

Q: Are all substitute parts in the same package?

A: Yes. All listed parts use SC-74A/SOT-753 case designation with SOT-23-5 supplier device package. Pin configuration and footprint are identical, enabling direct PCB substitution.

Q: What compliance certifications apply to these parts?

A: LP2985AIM5-3.6/NOPB, LP2985AIM5X-3.6/NOPB, LP2985IM5-3.6/NOPB, and MIC5205-3.6YM5-TR all carry ROHS3 compliance and REACH Unaffected status. The original LP2985AIM5-3.6 is RoHS non-compliant.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message