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AN78L08
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Product Detailed Parameters
- Description：IC REG LINEAR 8V 100MA 3-SSIP
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：-
- PSRR：54dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：3-SSIP
- Grade：-
- Qualification：-
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Overview
The AN78L08 is a 3-pin fixed positive output monolithic voltage regulator from the Panasonic AN78Lxx series, designed for applications requiring up to 100 mA current capacity. It provides a stabilized 8 V output from an unstable DC input without external components. The device operates with an input voltage range of 10.5 V to 23 V and features built-in overcurrent limit and thermal overload protection circuits. Electrical characteristics include a typical line regulation of 175 mV and load regulation of 15 mV at 25°C junction temperature.
Feature Summary
- Provides stabilized fixed positive output voltage without requiring external components
- Integrates built-in overcurrent limit circuitry for short-circuit protection
- Includes internal thermal overload protection circuit to prevent damage during overheating
Applications
- Power supply circuits for general electronic equipment
- Office equipment power regulation
- Communications equipment voltage stabilization
- Measuring instruments power management
Procurement Notes
Verify the specific package variant (AN78Lxx or AN78LxxM) required for the design, as pinouts differ between SSIP and HSIP packages. Confirm lead-free status if applicable, noting that newer packages (SSIP003-P-0000S and HSIP003-P-0000Q) have replaced older versions. Ensure input wiring length considerations are addressed by adding necessary capacitors near the input pin to prevent oscillation.
Selection Notes
Select this component when a fixed 8 V output is needed with a maximum load current of 100 mA. Consider the minimum input/output voltage difference of approximately 1.7 V when determining the input voltage range. Evaluate thermal dissipation requirements based on the power derating curves, as the device lacks a heat sink in standard configurations. Verify compatibility with standard board mounting dimensions for the chosen package type.
Part Context
The AN78L08 belongs to the AN78Lxx/AN78LxxM series of 3-terminal positive voltage regulators manufactured by Panasonic Electronic Components. This family offers twelve fixed output voltage options ranging from 4 V to 24 V. The series is categorized under linear voltage regulators within power management integrated circuits, providing simple regulation solutions for low-power applications.
Replacement Considerations
Check pinout compatibility carefully when substituting, as the AN78LxxM series uses a different pin configuration (Input-Output-Common) compared to the standard AN78Lxx series (Output-Common-Input). Verify that alternative devices meet the 100 mA output current requirement and similar thermal protection specifications.
