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AN7712SP
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Product Detailed Parameters
- Description：IC REG LINEAR 12V 1.2A SP-3SUA
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：23V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1.2A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：62dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：25°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：SP-3SUA
- Grade：-
- Qualification：-
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Overview
The AN7712SP is a three-pin, positive output, low dropout voltage regulator with a fixed 12 V output and a maximum continuous output current of 1.2 A. It operates within an input supply voltage range of 13 V to 23 V. The device features a minimum input-to-output voltage difference of 0.5 V typical. It incorporates on-chip protection mechanisms including overcurrent limiting, thermal shutdown, inrush current protection during startup, and input short-circuit protection. The component utilizes a SP-3SUA surface mount package.
Feature Summary
- Integrated input short-circuit protection circuit that shuts down the internal path when the input pin is grounded to prevent reverse current flow.
- Built-in thermal protection circuit that automatically shuts off the output when the junction temperature reaches the specified limit.
- On-chip inrush current protection circuit designed to manage current surges during initial input voltage application.
Applications
- Power supply equipment
Procurement Notes
Verify the specific lifecycle status as the datasheet indicates maintenance or discontinuation phases. Confirm the required external compensation capacitor specifications, particularly regarding equivalent series resistance (ESR) characteristics at operating temperatures, to ensure stability. Ensure the design adheres to absolute maximum ratings for power dissipation and ambient temperature conditions.
Selection Notes
Select this component for applications requiring a stable 12 V rail from a higher DC source with minimal voltage drop. Consider its suitability for general electronic equipment such as office machines, communications gear, and measuring instruments. Avoid usage in automotive, aerospace, or life-support systems due to explicit manufacturer restrictions.
Part Context
This part belongs to the AN77xxSP series of silicon monolithic bipolar ICs manufactured by Panasonic Industry. The series provides various fixed output voltages ranging from 3.3 V to 15 V. The AN7712SP specifically delivers 12 V and is housed in a 3-pin Plastic Surface Mount Power Package (SP Type).
Replacement Considerations
Consult official Panasonic documentation for verified substitute part numbers. Cross-referencing should be limited to components explicitly identified as replacements in manufacturer databases.
FAQ
Is an external protection diode required between the input and output pins?
No, an external protection diode is not required because the AN7712SP includes a built-in input short-circuit protection circuit that safeguards against discharge current from the output capacitor.
What type of output capacitor is recommended for stability?
An aluminum electrolytic or tantalum capacitor with a value of 33 μF is recommended. The equivalent series resistance (ESR) must fall within the recommended area shown in the technical data to prevent oscillation.
