SC4217MTRT-A0 Equivalent & Substitute Parts

Part Overview

The SC4217MTRT-A0 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 substitute parts essential for ongoing design support and production continuity.

Substiute Parts

SC4217MTRT-A0

Semtech CorporationIn Stock: 1117SC4217MTRT-A0 Datasheet

Current PartRFQ

TPS758A01KTTR

Texas InstrumentsIn Stock: 3280TPS758A01KTTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC4217MTRT-A0 is determined by the following critical parameters:

• Output configuration (positive adjustable)
• Output current capability (3A minimum)
• Input voltage range (5.5V maximum)
• Output voltage range (1.24V to 5V)
• Package compatibility (TO-263 family)
• Surface mount technology
• Enable control feature
• Protection features (over current, over temperature, reverse polarity)

The TPS758A01KTTR from Texas Instruments meets all these core substitution criteria. Both devices share identical output voltage ranges, current ratings, input voltage specifications, and package form factors. The substitute maintains functional equivalence for applications requiring positive adjustable linear regulation at 3A output.

Parameter Comparison

Engineering Selection Recommendations

The TPS758A01KTTR is the manufacturer-recommended substitute for the obsolete SC4217MTRT-A0. Selection of this substitute is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Identical electrical specifications for voltage regulation, current output, and input voltage range
• Compatible TO-263 package footprint for direct board-level replacement
• Extended operating temperature range (-40°C to 125°C versus -40°C to 85°C)
• Enhanced protection features including Under Voltage Lockout (UVLO)
• ROHS3 compliance and REACH unaffected status for regulatory alignment

The substitute maintains functional equivalence while providing improved reliability margins and regulatory compliance for new production and design updates.

Frequently Asked Questions (FAQ)

Q: Can the TPS758A01KTTR directly replace the SC4217MTRT-A0 on existing PCBs?

A: Yes. Both devices use the TO-263 package family with identical pinout and footprint compatibility. No PCB modifications are required for direct substitution.

Q: Are the output voltage ranges identical between these devices?

A: Yes. Both the SC4217MTRT-A0 and TPS758A01KTTR support adjustable output from 1.24V to 5V with identical input voltage specifications (5.5V maximum).

Q: What is the difference in quiescent current between these parts?

A: The SC4217MTRT-A0 specifies 50 µA quiescent current, while the TPS758A01KTTR specifies 200 µA. This difference is acceptable for most applications but should be evaluated in battery-powered or ultra-low-power designs.

Q: Does the extended temperature range of the substitute affect compatibility?

A: No. The TPS758A01KTTR's extended operating range (-40°C to 125°C) is a superset of the original device's range (-40°C to 85°C), providing improved performance across all original operating conditions.

Q: What additional protection does the TPS758A01KTTR provide?

A: The substitute includes Under Voltage Lockout (UVLO) protection in addition to the over current, over temperature, and reverse polarity protection present in the original device.

Q: Is the TPS758A01KTTR available in the same packaging format?

A: Yes. Both devices are supplied in TO-263 (DDPAK-5) surface mount packages. The TPS758A01KTTR is available in Tape & Reel (TR) packaging for production quantities.