LP3470M5-3.08 Equivalent & Substitute Parts

Part Overview

The LP3470M5-3.08 is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and voltage monitoring applications. This component operates as an open drain or open collector output device with a 3.08V threshold in a SOT-23-5 surface mount package.

The LP3470M5-3.08 carries an obsolete product status, which necessitates identification of equivalent and substitute parts for ongoing system support and new design implementations. Substitute parts are selected based on matching electrical parameters, package compatibility, and functional equivalence.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	3.08V
Output Configuration	Open Drain or Open Collector
Reset Logic	Active Low
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LP3470M5-3.08 are classified based on the following substitution criteria:

Direct Substitution Parameters:

Voltage threshold: 3.08V
Output type: Open Drain or Open Collector
Reset logic: Active Low
Package: SOT-23-5 (SC-74A, SOT-753)
Mounting type: Surface Mount
Number of channels: 1
Moisture sensitivity: MSL 1

Packaging Consideration: The main part LP3470M5-3.08 is supplied in Cut Tape (CT) & Digi-Reel® packaging. Substitute parts are available in Tape & Reel (TR) packaging, which is functionally equivalent but differs in delivery format.

Product Status Impact: Obsolete and "Not For New Designs" parts may be used for legacy system maintenance. Active product status parts are preferred for new designs.

Parameter Comparison

Parameter	LP3470M5-3.08	LP3470M5-3.08/NOPB	LP3470A308DBVR	LP3470M5X-3.08/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Not For New Designs	Active	Not For New Designs
Voltage Threshold	3.08V	3.08V	3.08V	3.08V
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
Reset Timeout	1ms Minimum	1ms Minimum	619ms Typical	1ms Minimum
Operating Temperature Range	-20°C ~ 85°C (TJ)	-20°C ~ 85°C (TJ)	-40°C ~ 125°C (TJ)	-20°C ~ 85°C (TJ)
Package / Case	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Legacy System Maintenance: LP3470M5-3.08/NOPB or LP3470M5X-3.08/NOPB are direct functional equivalents suitable for replacement in existing applications. Both parts maintain identical electrical parameters and package specifications as the obsolete LP3470M5-3.08.

For New Design Implementation: LP3470A308DBVR is the recommended selection for new designs. This part carries Active product status, ensuring long-term availability and manufacturer support. It provides an extended operating temperature range (-40°C ~ 125°C) compared to the original part (-20°C ~ 85°C), offering greater thermal flexibility for demanding applications.

Compliance Considerations: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original LP3470M5-3.08 is RoHS non-compliant and REACH affected, making substitution necessary for applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can LP3470M5-3.08/NOPB be used as a direct replacement for LP3470M5-3.08?

A: Yes. Both parts share identical electrical parameters, including 3.08V threshold, active low reset logic, open drain output configuration, and SOT-23-5 package. The difference is packaging format: the original uses Cut Tape & Digi-Reel®, while the substitute uses Tape & Reel (TR). Functionally, they are equivalent.

Q: What is the primary difference between LP3470A308DBVR and other substitutes?

A: LP3470A308DBVR is the only substitute with Active product status, ensuring ongoing manufacturer support and availability. It also provides an extended operating temperature range (-40°C ~ 125°C versus -20°C ~ 85°C), making it suitable for applications requiring broader thermal performance. The reset timeout differs at 619ms typical versus 1ms minimum for other variants.

Q: Are all substitute parts compatible with the original SOT-23-5 footprint?

A: Yes. All substitute parts use the SC-74A, SOT-753 package designation with SOT-23-5 supplier device package specification, ensuring PCB footprint compatibility with the original LP3470M5-3.08.

Q: Which substitute should be selected for new product designs?

A: LP3470A308DBVR is the recommended choice for new designs due to its Active product status, ROHS3 compliance, REACH unaffected status, and extended operating temperature range.

Q: Do the substitute parts require any circuit modifications?

A: No. All substitute parts maintain identical electrical specifications for voltage threshold, output type, reset logic, and MSL rating. No circuit modifications are required for functional substitution.

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