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AN7708SP
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Product Detailed Parameters
- Description：IC REG LINEAR 8V 1.2A SP-3SUA
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：19V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1.2A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：66dB (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 AN7708SP is a three-pin positive output low dropout voltage regulator from the Panasonic AN77xxSP series, designed for applications requiring stable power supplies with minimal input-to-output voltage differential. It delivers a fixed 8 V output at up to 1.2 A current capacity. The device operates within an input voltage range of 9 V to 19 V and features integrated protection mechanisms including overcurrent limiting, thermal shutdown, inrush current control, and input short-circuit prevention. It utilizes the SP-3SUA lead-free package.
Feature Summary
- Integrated on-chip protection circuits for overcurrent, thermal overload, inrush current, and input short-circuit conditions
- Low dropout characteristic allowing operation with minimal difference between input and output voltages
- Built-in input short-circuit protection eliminates the need for external discharge diodes
Applications
- Power supply equipment
- Battery-driven electronic devices
- Home appliances
- Industrial equipment with fluctuating supply voltages
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type (SP-3SUA) matches design requirements. Review latest datasheet revisions for potential specification updates before finalizing procurement orders.
Selection Notes
Select this regulator when a fixed 8 V output is required with high current capability. Ensure input voltage remains within the 9 V to 19 V operational range. Consider thermal management strategies based on ambient temperature and load conditions to maintain performance within safe operating limits.
Part Context
Part of the AN77xxSP series offering various fixed output voltages from 3.3 V to 15 V. Designed as a replacement for older three-pin regulators like the AN78xxNSP series, providing enhanced protection features and improved reliability for modern electronic designs.
Replacement Considerations
Direct substitutes include other members of the AN77xxSP series with different output voltages if system requirements change. Verify pin compatibility and thermal characteristics when replacing legacy components like the AN78xxNSP series.
FAQ
Does the AN7708SP require an external diode for input short-circuit protection?
No, the AN7708SP includes a built-in input short-circuit protection circuit that shuts down the internal path between pins 1 and 3, eliminating the need for external protection diodes.
What capacitor value is recommended for output stability?
A 33 µF capacitor should be connected close to the output and ground pins to maintain stability. Aluminum electrolytic or tantalum capacitors with specific ESR characteristics are recommended.
