LP3470M5-4.63 Equivalent & Substitute Parts

Part Overview

The LP3470M5-4.63 is a supervisor integrated circuit from Texas Instruments designed for power management applications. This component functions as a simple reset/power-on reset device with open drain or open collector output, monitoring a single voltage threshold at 4.63V. The part is classified as obsolete, which necessitates identification of equivalent alternatives for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	LP3470M5-4.63
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	4.63V
Output Type	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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LP3470M5-4.63 is determined by strict equivalence across the following critical parameters:

Voltage threshold: 4.63V
Output configuration: Open Drain or Open Collector
Reset logic: Active Low
Number of monitored voltages: 1
Package type: SC-74A, SOT-753 (SOT-23-5)
Mounting type: Surface Mount
Functional classification: Simple Reset/Power-On Reset

The substitute parts identified maintain these core electrical and mechanical specifications. Variations in product status, operating temperature range, reset timeout characteristics, and packaging format (Cut Tape vs. Tape & Reel) do not affect functional substitutability within the defined parameter set.

Parameter Comparison

Parameter	LP3470M5-4.63	LP3470M5-4.63/NOPB	LP3470A463DBVR	LP3470M5X-4.63/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Voltage Threshold	4.63V	4.63V	4.63V	4.63V
Output Type	Open Drain or Open Collector	Open Drain or Open Collector	Open Drain or Open Collector	Open Drain or Open Collector
Reset Logic	Active Low	Active Low	Active Low	Active Low
Number of Voltages Monitored	1	1	1	1
Package Type	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Product Status	Obsolete	Not For New Designs	Active	Not For New Designs
Operating Temperature Range	-20°C ~ 85°C (TJ)	-20°C ~ 85°C (TJ)	-40°C ~ 125°C (TJ)	-20°C ~ 85°C (TJ)
Reset Timeout	1ms Minimum	1ms Minimum	619ms Typical	1ms Minimum
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: LP3470A463DBVR

The LP3470A463DBVR is the manufacturer-recommended substitute. This part maintains all critical electrical parameters while offering active product status from Texas Instruments. The extended operating temperature range (-40°C ~ 125°C) provides broader environmental coverage compared to the original LP3470M5-4.63. This part is suitable for new designs and ongoing production.

Secondary Options: LP3470M5-4.63/NOPB and LP3470M5X-4.63/NOPB

Both LP3470M5-4.63/NOPB and LP3470M5X-4.63/NOPB are direct parametric equivalents with identical electrical specifications and operating temperature ranges. These parts are classified as "Not For New Designs" but remain available for legacy system support and replacement applications. Selection between these options depends on packaging format requirements (Cut Tape vs. Tape & Reel).

Compliance Considerations

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory continuity with the original component.

Frequently Asked Questions (FAQ)

Q: Can LP3470A463DBVR directly replace LP3470M5-4.63 in existing designs?

A: Yes. Both parts share identical voltage threshold (4.63V), output configuration (Open Drain or Open Collector), reset logic (Active Low), and package specifications (SC-74A, SOT-753, SOT-23-5). The extended operating temperature range of LP3470A463DBVR (-40°C ~ 125°C versus -20°C ~ 85°C) provides additional environmental margin.

Q: What is the difference between LP3470M5-4.63/NOPB and LP3470M5X-4.63/NOPB?

A: Both parts are parametrically equivalent with identical electrical specifications and operating temperature ranges. The primary difference is packaging format: LP3470M5-4.63/NOPB is available in Cut Tape (CT) & Digi-Reel format, while LP3470M5X-4.63/NOPB is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Why does LP3470A463DBVR have a different reset timeout specification?

A: LP3470A463DBVR specifies 619ms typical reset timeout, compared to 1ms minimum for other variants. This difference reflects different characterization methodologies and does not affect functional substitutability for applications requiring simple reset/power-on reset functionality at the 4.63V threshold.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance status, ensuring regulatory alignment with the original LP3470M5-4.63.

Q: What packaging options are available for substitutes?

A: All substitute parts use identical package specifications: SC-74A, SOT-753 physical package with SOT-23-5 supplier device package designation. Packaging format variations (Cut Tape vs. Tape & Reel) are available depending on the specific part number selected.

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