TL317CDRG4 Equivalent & Substitute Parts

Part Overview

The TL317CDRG4 is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 100mA output current with an adjustable voltage range from 1.2V to 32V, making it suitable for precision power management circuits requiring low dropout operation. The device is packaged in an 8-SOIC surface mount configuration and includes integrated over-current and over-temperature protection.

The TL317CDRG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

TL317CDRG4

Texas InstrumentsIn Stock: 25487TL317CDRG4 Datasheet

Current PartRFQ

TL317CDR

Texas InstrumentsIn Stock: 90847TL317CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL317CDRG4 is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Number of regulators (1)
• Maximum input voltage (38V)
• Output voltage range (1.2V to 32V)
• Output current capability (100mA)
• Package type (8-SOIC)
• Protection features (Over Current, Over Temperature)
• Operating temperature range (0°C ~ 125°C)

The TL317CDR qualifies as a direct substitute, sharing identical electrical specifications and package configuration. The primary distinction is packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The TL317CDR is the qualified substitute for the TL317CDRG4. Both devices are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The TL317CDR is available in Cut Tape (CT) and Digi-Reel® packaging formats with significantly higher inventory availability (90,768 pcs vs. 25,468 pcs).

Selection between these parts should be based on packaging requirements and supply chain considerations. The TL317CDR, designated as Last Time Buy, provides a transition path for designs currently using the discontinued TL317CDRG4. Both parts maintain ROHS3 compliance and identical thermal and electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the TL317CDR be used as a direct replacement for the TL317CDRG4 in existing designs?

A: Yes. The TL317CDR is electrically and mechanically equivalent to the TL317CDRG4. Both devices share identical output voltage ranges (1.2V to 32V), output current (100mA), package configuration (8-SOIC), and protection features. No circuit modifications are required.

Q: What is the difference between TL317CDRG4 and TL317CDR?

A: The primary difference is packaging format. The TL317CDRG4 is supplied in Digi-Reel® format, while the TL317CDR is available in Cut Tape (CT) and Digi-Reel® formats. Electrical specifications are identical.

Q: Why is the TL317CDRG4 discontinued?

A: The TL317CDRG4 has been discontinued at DiGi Electronics. The TL317CDR remains available as the current equivalent part number for this device family.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the same temperature range (0°C to 125°C) and deliver identical PSRR performance (65dB at 120Hz) and protection features (over-current and over-temperature).

Q: What packaging options are available for the substitute part?

A: The TL317CDR is available in Cut Tape (CT) and Digi-Reel® packaging formats. Selection depends on production volume and assembly requirements.