LP3470M5X-4.63 Equivalent & Substitute Parts

Part Overview

The LP3470M5X-4.63 is a single-channel supervisor IC manufactured by Texas Instruments, designed for power management and reset control applications. This device operates as a simple reset/power-on reset supervisor with an open drain or open collector output, housed in a SOT-23-5 surface mount package. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production and maintenance applications requiring the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	LP3470M5X-4.63
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.63V
Output	Open Drain or Open Collector
Reset	Active Low
Reset Timeout	1ms Minimum
Operating Temperature	-20°C ~ 85°C (TJ)
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the LP3470M5X-4.63 is determined by strict equivalence across the following critical parameters:

Voltage Threshold: 4.63V (exact match required)
Number of Voltages Monitored: 1 channel
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: SOT-23-5 (SC-74A, SOT-753)
Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical specifications and mechanical compatibility. Variations in packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) and product status do not affect functional equivalence but may influence procurement and compliance considerations.

Parameter Comparison

Parameter	LP3470M5X-4.63	LP3470M5X-4.63/NOPB	LP3470M5-4.63	LP3470M5-4.63/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
Number of Voltages Monitored	1	1	1	1
Voltage - Threshold	4.63V	4.63V	4.63V	4.63V
Output	Open Drain or Open Collector	Open Drain or Open Collector	Open Drain or Open Collector	Open Drain or Open Collector
Reset	Active Low	Active Low	Active Low	Active Low
Reset Timeout	1ms Minimum	1ms Minimum	1ms Minimum	1ms Minimum
Operating Temperature	-20°C ~ 85°C (TJ)	-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	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
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Not For New Designs	Obsolete	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

All four substitute parts maintain complete electrical and mechanical equivalence to the LP3470M5X-4.63. Selection among these alternatives should be based on the following criteria:

RoHS Compliance: LP3470M5X-4.63/NOPB, LP3470M5-4.63, and LP3470M5-4.63/NOPB are ROHS3 compliant, whereas the original LP3470M5X-4.63 is RoHS non-compliant. Applications subject to RoHS regulations should utilize one of the compliant variants.

Product Status: LP3470M5X-4.63/NOPB and LP3470M5-4.63/NOPB are designated "Not For New Designs," indicating limited long-term availability. LP3470M5-4.63 shares the original "Obsolete" status. For new product development, compliance with product status declarations should be evaluated against project lifecycle requirements.

Packaging Format: LP3470M5X-4.63/NOPB is supplied in Tape & Reel format, while LP3470M5-4.63 and LP3470M5-4.63/NOPB are available in Cut Tape & Digi-Reel format. Packaging selection depends on assembly process requirements and order quantity.

Frequently Asked Questions (FAQ)

Q: Can LP3470M5X-4.63/NOPB be used as a direct replacement for LP3470M5X-4.63?

A: Yes. Both parts are electrically and mechanically identical. The primary differences are packaging format (Tape & Reel vs. bulk) and RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant). The "/NOPB" designation indicates lead-free, RoHS-compliant construction.

Q: What does the voltage threshold 4.63V represent?

A: The voltage threshold specifies the supply voltage level at which the supervisor IC triggers a reset signal. When the monitored voltage falls below 4.63V, the device asserts an active-low reset output.

Q: Are all substitute parts available in the same SOT-23-5 package?

A: Yes. All substitute parts use the SOT-23-5 package (SC-74A, SOT-753 case designation), ensuring identical PCB footprint and mounting compatibility.

Q: Why is the original part marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Substitute parts with identical specifications remain available through authorized distributors, ensuring design continuity for existing applications.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Cut Tape & Digi-Reel formats are packaging and delivery methods only. Electrical specifications and performance are identical across all packaging variants.

Q: Which substitute should be selected for new designs?

A: For new designs, select a part with "Not For New Designs" status only if long-term availability is not a concern. Verify RoHS compliance requirements with your design specifications and regulatory obligations.

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