TL497ACNG4 Equivalent & Substitute Parts

Part Overview

The TL497ACNG4 is a Buck, Boost Switching Regulator IC manufactured by Texas Instruments, designed for positive or negative adjustable voltage regulation with a single output at 500mA switch current. This component operates across an input voltage range of 4.5V to 12V and supports output voltages from ±1.2V to 30V/-25V in a 14-DIP through-hole package.

The TL497ACNG4 is discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this topology and performance specification.

Substiute Parts

TL497ACNG4

Texas InstrumentsIn Stock: 984TL497ACNG4 Datasheet

Current PartRFQ

TL497ACN

Texas InstrumentsIn Stock: 9066TL497ACN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL497ACNG4 is determined by strict equivalence across the following critical parameters:

• Topology: Buck, Boost switching regulator configuration
• Output Configuration: Positive or Negative adjustable output
• Input Voltage Range: 4.5V to 12V minimum and maximum
• Output Voltage Range: ±1.2V to 30V/-25V capability
• Output Current: 500mA switch current
• Package Type: 14-DIP (0.300", 7.62mm) through-hole
• Number of Outputs: Single output
• Operating Temperature: 0°C to 70°C

The TL497ACN qualifies as a direct substitute based on identical electrical specifications, package configuration, and functional topology. Differences in product status and packaging format (tube vs. unspecified) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TL497ACN is a direct electrical and mechanical equivalent to the TL497ACNG4. Both parts share identical specifications across all functional parameters, voltage ratings, current capacity, and package configuration. The TL497ACN maintains ROHS3 compliance and REACH unaffected status, meeting the same regulatory requirements.

The primary distinction is product status: the TL497ACNG4 is discontinued at DiGi Electronics, while the TL497ACN is active and available in inventory. For applications currently using the TL497ACNG4, the TL497ACN provides continuity without design modification or re-qualification of circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the TL497ACN be used as a direct replacement for the TL497ACNG4 in existing designs?

A: Yes. The TL497ACN is electrically and mechanically identical to the TL497ACNG4. All electrical specifications, voltage ratings, current capacity, and package dimensions are equivalent. No circuit redesign is required.

Q: Are there differences in packaging between these parts?

A: Both parts use the same 14-DIP (0.300", 7.62mm) through-hole package. The TL497ACN is supplied in tube packaging, while the TL497ACNG4 packaging format is not specified. This does not affect component functionality or PCB mounting.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TL497ACNG4 and TL497ACN are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: Why is the TL497ACNG4 discontinued?

A: The TL497ACNG4 is discontinued at DiGi Electronics. The TL497ACN remains active and available, providing supply continuity for this topology and specification.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by matching topology (Buck, Boost), output configuration (Positive or Negative), input voltage range (4.5V to 12V), output voltage range (±1.2V to 30V/-25V), output current (500mA), package type (14-DIP), and operating temperature range (0°C to 70°C).