AN7712SP Linear Voltage Regulator - Equivalent & Substitute Parts

Part Overview

The AN7712SP is a linear voltage regulator IC manufactured by Panasonic Electronic Components, designed to deliver a fixed 12V output at 1.2A maximum current. This Surface Mount device in TO-252-3 (DPAK) packaging is classified as a Power Management PMIC with integrated protection features including over-current, over-temperature, and short-circuit protection.

The AN7712SP is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

AN7712SP

Panasonic Electronic ComponentsIn Stock: 1029AN7712SP Datasheet

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BAJ2CC0FP-E2

Rohm SemiconductorIn Stock: 19380BAJ2CC0FP-E2 Datasheet

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L7812CD2T-TR

STMicroelectronicsIn Stock: 164802L7812CD2T-TR Datasheet

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MC7812BDTRKG

onsemiIn Stock: 305225MC7812BDTRKG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AN7712SP are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Fixed output voltage of 12V
• Surface Mount packaging in TO-252-3 (DPAK) or compatible form factor
• Output current capability of 1.0A or greater
• Protection features including over-current and over-temperature protection
• Input voltage rating sufficient for 23V maximum input

Secondary Compatibility Factors:

• Quiescent current performance (lower is preferable for low-power applications)
• PSRR performance at 120Hz (55dB minimum acceptable)
• Operating temperature range (extended range preferred for industrial applications)
• Product status (Active preferred over obsolete)
• RoHS3 compliance and REACH compliance status

The three substitute parts identified below meet these criteria with varying trade-offs in current capacity, input voltage rating, and thermal performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

BAJ2CC0FP-E2 (Rohm Semiconductor) is the closest direct substitute for the AN7712SP. Both devices share identical TO-252-3 DPAK packaging and 12V fixed output. The BAJ2CC0FP-E2 provides lower quiescent current (2.5 mA vs. 5 mA), reducing standby power consumption. Output current is rated at 1.0A, which is 0.2A below the original specification but remains suitable for applications not requiring the full 1.2A capacity. This part is Active status with RoHS3 and REACH compliance, ensuring long-term availability and regulatory alignment.

L7812CD2T-TR (STMicroelectronics) offers the highest output current capability at 1.5A and the highest input voltage rating at 35V, providing design margin for higher input voltage applications. The D2PAK package (TO-263-3) is mechanically similar to DPAK but requires PCB layout modification. This part is Active status with full RoHS3 and REACH compliance. The 2V typical dropout at 1A and 8 mA quiescent current are specified parameters supporting thermal design calculations.

MC7812BDTRKG (onsemi) maintains identical TO-252-3 DPAK packaging as the original AN7712SP, enabling direct PCB substitution without layout changes. Output current is 1.0A with 35V maximum input voltage rating. Extended operating temperature range (-40°C to 125°C) supports wider environmental applications. This part is Active status with RoHS3 and REACH compliance. PSRR performance of 60dB at 1kHz exceeds the original 62dB specification at 120Hz.

All three substitutes are Active products with established supply chains, RoHS3 compliance, and REACH compliance status, ensuring regulatory and availability advantages over the obsolete AN7712SP.

Frequently Asked Questions (FAQ)

Q: Can BAJ2CC0FP-E2 directly replace AN7712SP in all applications?

A: BAJ2CC0FP-E2 is a direct package substitute (TO-252-3 DPAK) with identical 12V output. The 1.0A output current rating is 0.2A lower than the original 1.2A specification. Substitution is valid only for applications drawing 1.0A or less. Verify actual circuit current requirements before selection.

Q: Why does L7812CD2T-TR use a different package (D2PAK vs. DPAK)?

A: L7812CD2T-TR uses TO-263-3 D2PAK packaging, which is mechanically larger than TO-252-3 DPAK. While both are three-terminal surface mount packages with identical electrical pinout, D2PAK requires PCB footprint modification. D2PAK provides superior thermal performance due to larger tab area, beneficial for high-current or high-ambient-temperature applications.

Q: What is the significance of the 2V dropout voltage specification in L7812CD2T-TR and MC7812BDTRKG?

A: Dropout voltage is the minimum voltage difference between input and output required for proper regulation. A 2V typical dropout at 1A means the input must be at least 14V (12V output + 2V dropout) to maintain regulation at 1A output current. The original AN7712SP does not specify dropout voltage; verify this parameter against your power supply design.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. BAJ2CC0FP-E2, L7812CD2T-TR, and MC7812BDTRKG are all RoHS3 compliant. The original AN7712SP does not specify RoHS status. All three substitutes are also REACH compliant, supporting regulatory requirements for new designs and production.

Q: Which substitute offers the best quiescent current performance?

A: BAJ2CC0FP-E2 provides the lowest quiescent current at 2.5 mA, compared to 5 mA for the original AN7712SP. This reduces standby power consumption by 50%, beneficial for battery-powered or low-power standby applications. L7812CD2T-TR and MC7812BDTRKG both specify 8 mA quiescent current.

Q: Can MC7812BDTRKG be used as a drop-in replacement without PCB modification?

A: Yes. MC7812BDTRKG uses identical TO-252-3 DPAK packaging as the AN7712SP, enabling direct PCB substitution without layout changes. Electrical pinout and thermal pad configuration are identical, supporting immediate integration into existing designs.

Q: What is the difference between PSRR specifications at different frequencies?

A: PSRR (Power Supply Rejection Ratio) measures the regulator's ability to reject input voltage ripple. Higher PSRR values indicate better noise rejection. The original AN7712SP specifies 62dB at 120Hz (line frequency). MC7812BDTRKG specifies 60dB at 1kHz (higher frequency), indicating good high-frequency noise rejection. BAJ2CC0FP-E2 and L7812CD2T-TR specify 55dB at 120Hz, meeting minimum performance requirements.