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Product Detailed Parameters
- Description：5V VOLTAGE REGULATOR WITH RESET
- Series：*
- Mfr：Sanyo
- Package：Bulk
- Output Configuration：-
- Output Type：-
- Number of Regulators：-
- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：-
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The L78LR05C-MA-E-SY is a five-pin linear voltage regulator manufactured by Sanyo Semiconductor. It provides a fixed 5V output with a maximum current capacity of 150mA. The device integrates a reset signal generation function for microcomputer systems, activating upon power-on or under-voltage conditions. It operates within an input voltage range of 7.5V to 20V and features internal current limiting and thermal shutdown protection. The component is housed in a compact surface-mount package designed for reliable performance in embedded applications.
Feature Summary
- Integrates a dedicated reset signal generator for microprocessor supervision
- Provides stable 5V fixed output with 150mA current capability
- Includes internal current limiting and thermal shutdown for robustness
Applications
- Microcomputer system power supply regulation
- Embedded controller voltage stabilization
- Reset circuit implementation for digital logic
Procurement Notes
Verify the manufacturer designation carefully, as this part was originally produced by Sanyo Semiconductor, which has undergone corporate restructuring and brand transitions. Confirm RoHS compliance status and lead-free markings on the specific batch received. Ensure the pinout matches the five-terminal configuration required for your design, as legacy components may have variant suffixes indicating different packaging or temperature grades.
Selection Notes
Select this component when a combined voltage regulation and reset function is required in a single package. It is suitable for designs needing a fixed 5V rail with integrated supervisor capabilities. Consider the 150mA output limit and dropout voltage characteristics against your load requirements. Verify that the thermal dissipation capabilities of the chosen package meet the ambient operating conditions of the final assembly.
Part Context
This device belongs to the L78LR series of three-terminal positive regulators with built-in reset functions. It is part of Sanyo's portfolio of power management ICs designed for low-cost, high-reliability applications. The series is characterized by its simplicity and integration of supervisory features, reducing the component count in microcontroller-based systems compared to using separate regulator and reset ICs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the specific integration of the reset function and the legacy nature of the Sanyo manufacturing line, direct pin-to-pin replacements with identical functionality require verification against current manufacturer datasheets. Generic 5V regulators without reset outputs are not equivalent substitutes.
