LP3470M5-2.93 Equivalent & Substitute Parts

Part Overview

The LP3470M5-2.93 is a single-channel supervisor IC manufactured by Texas Instruments, designed for power management and reset signal generation in embedded systems. This component operates as a simple reset/power-on reset device with an open drain output configuration and a 2.93V threshold voltage. The part is classified as obsolete, making identification of suitable alternatives essential for ongoing production and maintenance applications. Equivalent and substitute parts maintain identical electrical and mechanical specifications while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	LP3470M5-2.93
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	2.93V
Output Configuration	Open Drain or Open Collector
Reset Logic	Active Low
Reset Timeout	1ms Minimum
Operating Temperature Range	-20°C ~ 85°C (TJ)
Package Type	SC-74A, SOT-753
Mounting Type	Surface Mount
Supplier Device Package	SOT-23-5
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LP3470M5-2.93 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Voltage threshold: 2.93V (exact match required)
Output type: Open Drain or Open Collector
Reset logic: Active Low
Reset timeout: 1ms Minimum
Package: SC-74A, SOT-753 (SOT-23-5)
Mounting type: Surface Mount
Operating temperature range: -20°C ~ 85°C (TJ)
Number of channels monitored: 1 channel

Parts meeting all these parameters are classified as direct equivalents or parametric equivalents. Packaging format (Tape & Reel, Cut Tape, or standard) does not affect electrical compatibility but may influence procurement and handling procedures.

Parameter Comparison

Parameter	LP3470M5-2.93	LP3470M5-2.93/NOPB	LP3470M5X-2.93/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Number of Voltages Monitored	1	1	1
Voltage Threshold	2.93V	2.93V	2.93V
Output Configuration	Open Drain or Open Collector	Open Drain or Open Collector	Open Drain or Open Collector
Reset Logic	Active Low	Active Low	Active Low
Reset Timeout	1ms Minimum	1ms Minimum	1ms Minimum
Operating Temperature	-20°C ~ 85°C (TJ)	-20°C ~ 85°C (TJ)	-20°C ~ 85°C (TJ)
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5
Product Status	Obsolete	Not For New Designs	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The LP3470M5-2.93 is classified as obsolete. Direct substitutes LP3470M5-2.93/NOPB and LP3470M5X-2.93/NOPB are classified as "Not For New Designs" but maintain full electrical and mechanical compatibility with the original part.

LP3470M5-2.93/NOPB is supplied in Tape & Reel (TR) packaging format and carries ROHS3 compliance certification, providing improved regulatory alignment compared to the original non-compliant part.

LP3470M5X-2.93/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format and also carries ROHS3 compliance certification. This variant offers the same electrical performance with alternative packaging for different procurement workflows.

Both substitute parts maintain identical electrical specifications, operating temperature ranges, and package dimensions. Selection between LP3470M5-2.93/NOPB and LP3470M5X-2.93/NOPB depends on packaging requirements and supply chain preferences rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can LP3470M5-2.93/NOPB be used as a direct replacement for LP3470M5-2.93?

A: Yes. Both parts are electrically and mechanically identical. The /NOPB designation indicates lead-free plating compliance. The primary difference is packaging format (Tape & Reel vs. standard) and improved RoHS3 compliance status.

Q: What is the difference between LP3470M5-2.93/NOPB and LP3470M5X-2.93/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications and package dimensions. The difference is packaging format: LP3470M5-2.93/NOPB uses Tape & Reel (TR) packaging, while LP3470M5X-2.93/NOPB uses Cut Tape (CT) & Digi-Reel® packaging. Selection depends on procurement and assembly requirements.

Q: Are these parts suitable for new designs?

A: Both substitute parts carry "Not For New Designs" status. However, they remain available for maintenance, repair, and legacy system support where the LP3470M5-2.93 is already in use.

Q: Do the substitute parts maintain the same SOT-23-5 package footprint?

A: Yes. All three parts use SC-74A, SOT-753 package type with SOT-23-5 supplier device package designation. PCB footprints and land patterns are identical.

Q: What is the significance of ROHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates the substitute parts meet current regulatory requirements for hazardous substance restrictions. The original LP3470M5-2.93 is RoHS non-compliant, making the compliant substitutes preferable for applications subject to environmental regulations.

Q: Are there any thermal or performance differences between these parts?

A: No. All three parts operate within the same temperature range (-20°C ~ 85°C TJ) and maintain identical electrical characteristics including voltage threshold (2.93V), reset timeout (1ms minimum), and output configuration (open drain/open collector).

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