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AN77L12
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Product Detailed Parameters
- Description：IC REG LINEAR 12V 100MA TO92-3
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：22.98V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：58dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-30°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The AN77L12 is a 3-pin positive output low dropout voltage regulator from the Panasonic AN77Lxx series, providing a fixed 12V output with a maximum current of 100mA. It operates within an input supply voltage range of 12.98V to 22.98V. The device features a typical minimum input/output voltage difference of 0.31V and includes built-in overcurrent limit, rush current prevention, overheat protection, and input short-circuit protection circuits.
Feature Summary
- Integrated protection mechanisms including overcurrent limiting, thermal shutdown, and input short-circuit defense.
- Low dropout performance suitable for battery-powered equipment with fluctuating supply voltages.
- Internal circuitry eliminates the need for external protection diodes during input-to-ground short circuits.
Applications
- Stabilized constant voltage power supplies
- Low-voltage consumer electronic equipment
- Industrial equipment with variable supply inputs
Procurement Notes
Verify the specific package variant (AN77L12 or AN77L12M) against design requirements, as pin configurations differ between SSIP003-P-0000 and HSIP003-P-0000B packages. Confirm lead-free package availability (SSIP003-P-0000S or HSIP003-P-0000Q) if environmental compliance is required. Always consult the latest product standards before finalizing designs due to potential specification updates.
Selection Notes
Select this component for applications requiring a fixed 12V rail at up to 100mA with minimal voltage drop. Ensure the input voltage remains within the 12.98V to 22.98V operating range. For stability, use a 10µF capacitor on the output side, preferably tantalum or aluminum electrolytic with appropriate ESR characteristics, placed close to the IC pins.
Part Context
The AN77L12 belongs to the AN77Lxx/AN77LxxM series of 3-pin linear regulators manufactured by Panasonic Industry. This family offers various fixed output voltages ranging from 3V to 12V, all sharing similar internal protection architectures and low dropout characteristics designed for general-purpose power management in standard electronic equipment.
Replacement Considerations
The AN77L12M serves as the alternative package version of this part number. Designers must verify pinout compatibility when substituting between the standard and M-series packages, as their pin assignments for Input, Output, and Common differ.
