AN7706SP Linear Voltage Regulator - Equivalent & Substitute Parts

Part Overview

The AN7706SP is a linear voltage regulator IC manufactured by Panasonic Electronic Components, designed for positive fixed 6V output at 1.2A maximum current. This Surface Mount device in TO-252-3 (DPAK) packaging integrates over-current, over-temperature, and short-circuit protection. The part is classified as obsolete, making equivalent substitutes necessary for new designs and production continuity. Substitute parts must maintain electrical compatibility across output voltage, current capacity, input voltage tolerance, and thermal protection characteristics while accommodating packaging and availability constraints.

Substiute Parts

AN7706SP

Panasonic Electronic ComponentsIn Stock: 1020AN7706SP Datasheet

Current PartRFQ

LF60ABDT-TR

STMicroelectronicsIn Stock: 60389LF60ABDT-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AN7706SP is determined by the following critical parameters:

• Output Voltage: Must be fixed at 6V to maintain circuit compatibility
• Output Current Capacity: Substitute must support minimum 1.2A; lower current ratings are not acceptable for direct replacement
• Input Voltage Range: Maximum input voltage must accommodate 17V; lower ratings restrict application scope
• Package Type: TO-252-3 (DPAK) form factor ensures mechanical and thermal compatibility
• Protection Features: Over-current and over-temperature protection are mandatory for safety-critical applications
• Operating Temperature: Must support the 25°C to 125°C range or broader

The LF60ABDT-TR from STMicroelectronics is identified as a substitute part. However, this part exhibits a reduced output current specification (500mA versus 1.2A), which represents a functional limitation. This substitution is valid only in applications where the actual load current does not exceed 500mA, despite the AN7706SP's higher rated capacity.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: The LF60ABDT-TR is the identified substitute for the obsolete AN7706SP. Selection of this part is appropriate when the following conditions are met:

• Application load current does not exceed 500mA (the substitute's rated output current)
• Input voltage supply does not exceed 16V (the substitute's maximum input specification)
• Operating temperature range requirement is satisfied by -40°C to 125°C (broader than the original part's 25°C to 125°C)
• Active product status and availability of 60,300 units in stock ensure supply chain continuity

Compliance Status: The LF60ABDT-TR carries RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The original AN7706SP does not specify these certifications, making the substitute advantageous for new designs subject to environmental regulations.

Limitation: Applications requiring the full 1.2A output current of the AN7706SP cannot use the LF60ABDT-TR as a direct replacement. In such cases, alternative 6V linear regulators with 1.2A or higher output capacity must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the LF60ABDT-TR replace the AN7706SP in all applications?

A: No. The LF60ABDT-TR has a maximum output current of 500mA, compared to the AN7706SP's 1.2A rating. Direct replacement is valid only when actual circuit load current does not exceed 500mA. Applications requiring higher current must source alternative parts.

Q: What is the impact of the 16V maximum input voltage on the LF60ABDT-TR versus the 17V specification of the AN7706SP?

A: The 1V difference is a minor constraint. If your input supply is designed for 17V operation, the LF60ABDT-TR cannot be used. Verify your actual input voltage specification before selection. Most 12V or 15V supply designs will operate within the LF60ABDT-TR's 16V limit.

Q: Are the package types identical?

A: Yes. Both parts use TO-252-3 (DPAK) packaging with 2 leads plus tab. PCB layout and thermal management considerations remain consistent between the two parts.

Q: Does the LF60ABDT-TR provide the same protection features?

A: The LF60ABDT-TR specifies over-current and over-temperature protection. Short-circuit protection is not explicitly listed in the provided specifications. If short-circuit protection is critical to your application, verify this feature with the manufacturer datasheet before finalizing the design.

Q: What is the advantage of the LF60ABDT-TR's lower quiescent current?

A: The LF60ABDT-TR draws 1 mA quiescent current versus the AN7706SP's 5 mA. This 4 mA difference reduces standby power consumption, which is beneficial in battery-powered or low-power applications. This is a secondary benefit when current capacity is not a limiting factor.

Q: Is the LF60ABDT-TR available in the same packaging format (Tape & Reel)?

A: Yes. The LF60ABDT-TR is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The AN7706SP packaging format is not specified in the provided data.