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AN79L18M
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Product Detailed Parameters
- Description：IC REG LINEAR -18V 100MA 3-HSIP
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-18V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：50dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：3-HSIP
- Grade：-
- Qualification：-
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Overview
The AN79L18M is a monolithic negative output voltage regulator from the Panasonic AN79LxxM series, designed for fixed -18V regulation. It operates with an input voltage range of −21 V to −33 V and delivers up to 100 mA of output current. The device incorporates built-in overcurrent limiting and thermal overload protection circuits. It utilizes the HSIP003-P-0000B package (lead-free variant HSIP003-P-0000Q) and requires no external components for basic stabilization.
Feature Summary
- Integrated overcurrent limit circuit protects against short-circuit conditions
- Built-in thermal overload protection circuit prevents damage during overheating
- Fixed negative output voltage operation without requiring external adjustment components
Applications
- Power circuits requiring stabilized negative DC supply rails
- General electronic equipment power management
- Communications equipment biasing
- Measuring instruments power regulation
Procurement Notes
Verify the specific ordering suffix matches the required lead-free package designation (HSIP003-P-0000Q). Confirm that the application environment remains within the specified operating temperature range and does not exceed maximum absolute ratings. Ensure proper heat dissipation design is implemented on the standard board layout to maintain junction temperatures within safe limits during continuous operation.
Selection Notes
Select this component when a fixed -18V negative rail is required with a maximum load current of 100 mA. The device is suitable for applications needing internal protection against overcurrent and thermal stress. Verify that the input voltage source can provide the necessary headroom above the minimum dropout voltage across the expected operating temperature range.
Part Context
This part belongs to the AN79Lxx/AN79LxxM series of 3-pin negative output voltage regulators manufactured by Panasonic Electronic Components. The series offers twelve fixed output voltage options ranging from −4V to −24V. The 'M' suffix denotes the surface-mount version utilizing the HSIP package, distinct from the through-hole SSIP variants in the same family.
Replacement Considerations
Other members of the AN79LxxM series (e.g., AN79L15M, AN79L20M) share identical pinouts and packages but differ in output voltage. Cross-referencing with other manufacturers' -18V LDOs requires verification of pin configuration and electrical characteristics.
