SC4217MTRT Equivalent & Substitute Parts

Part Overview

The SC4217MTRT is a linear voltage regulator IC manufactured by Semtech Corporation, designed for positive adjustable output applications with 3A current capacity in a TO-263-5 surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. The SC4217MTRT provides adjustable output voltage regulation from 1.24V to 5V with integrated protection features including over-current, over-temperature, and reverse polarity protection.

Key Parameters

Parameter	Value
Manufacturer Part Number	SC4217MTRT
Manufacturer	Semtech Corporation
Category	Power Management (PMIC)
Description	IC REG LINEAR POS ADJ 3A TO263-5
Product Status	Obsolete
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	1.24V
Voltage - Output (Max)	5V
Voltage Dropout (Max)	0.6V @ 3A
Current - Output	3A
Current - Quiescent (Iq)	50 µA
Control Features	Enable
Protection Features	Over Current, Over Temperature, Reverse Polarity
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SC4217MTRT is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Output configuration: Positive adjustable
Number of regulators: Single output
Voltage output range: 1.24V to 5V minimum
Current output capacity: 3A minimum
Input voltage maximum: 5.5V or greater
Package type: TO-263 (DDPAK) surface mount compatible
Control features: Enable function required
Protection features: Over-current and over-temperature protection minimum

The TPS758A01KTTR from Texas Instruments meets all substitution criteria as a manufacturer-recommended equivalent, maintaining identical electrical specifications for output voltage range, output current, input voltage rating, and package form factor while providing enhanced protection features and active product status.

Parameter Comparison

Parameter	SC4217MTRT (Main Part)	TPS758A01KTTR (Substitute)
Manufacturer	Semtech Corporation	Texas Instruments
Product Status	Obsolete	Active
Output Configuration	Positive	Positive
Output Type	Adjustable	Adjustable
Number of Regulators	1	1
Voltage - Input (Max)	5.5V	5.5V
Voltage - Output (Min/Fixed)	1.24V	1.24V
Voltage - Output (Max)	5V	5V
Current - Output	3A	3A
Current - Quiescent (Iq)	50 µA	200 µA
Control Features	Enable	Enable
Protection Features	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-263-6, D2PAK (5 Leads + Tab)	TO-263-6, D2PAK (5 Leads + Tab)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	2 (1 Year)

Engineering Selection Recommendations

The TPS758A01KTTR is designated as the manufacturer-recommended substitute for the obsolete SC4217MTRT. Selection of this alternative is supported by the following factors:

Product Status: The SC4217MTRT is obsolete, while the TPS758A01KTTR maintains active product status with ongoing manufacturer support and availability.

Compliance & Certifications: The TPS758A01KTTR is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. Both devices carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Electrical Equivalence: The TPS758A01KTTR provides identical output voltage range (1.24V to 5V), output current (3A), input voltage maximum (5.5V), and control features (Enable function). The substitute includes additional protection via Under Voltage Lockout (UVLO) and supports an extended operating temperature range (-40°C to 125°C versus -40°C to 85°C).

Package Compatibility: Both devices use TO-263 (DDPAK-5) surface mount packaging, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TPS758A01KTTR directly replace the SC4217MTRT on existing PCBs?

A: Yes. Both devices use identical TO-263 (DDPAK-5) surface mount packaging with the same pinout configuration, enabling direct substitution without PCB redesign.

Q: What are the key electrical differences between these parts?

A: The TPS758A01KTTR maintains identical output voltage range (1.24V to 5V), output current (3A), and input voltage specifications (5.5V maximum). The substitute has higher quiescent current (200 µA versus 50 µA) and includes additional Under Voltage Lockout (UVLO) protection. Operating temperature range extends to 125°C on the substitute versus 85°C on the original.

Q: Why is the SC4217MTRT obsolete?

A: The SC4217MTRT is classified as obsolete by the manufacturer. The TPS758A01KTTR is the active equivalent providing equivalent or superior functionality with ongoing manufacturer support.

Q: Are there any compliance or certification differences?

A: The TPS758A01KTTR is RoHS3 compliant and REACH unaffected. Both devices share identical ECCN and HTSUS classifications. Moisture sensitivity differs: SC4217MTRT is MSL 1 (unlimited) while TPS758A01KTTR is MSL 2 (1 year).

Q: What is the inventory status for these parts?

A: SC4217MTRT has 6269 pieces in stock as new original inventory. TPS758A01KTTR has 3235 pieces in stock as new original inventory in Tape & Reel packaging.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message