78M05B

Voltage Regulators - Linear Regulator Controllers Overview

The 78M05B is a fixed positive linear voltage regulator manufactured by Shenzhen Slkormicro Semicon Co., Ltd. It provides a stable 5V output with a maximum current capacity of 1.5A. The device accepts an input voltage range up to 24V and operates within a temperature range of -20°C to +125°C. Key electrical specifications include a typical power supply rejection ratio (PSRR) of 80dB at 120Hz and a maximum dropout voltage of 2V at 500mA load. Internal protection features include thermal overload shutdown and short-circuit current limiting.

Voltage Regulators - Linear Regulator Controllers Feature Summary

• Provides fixed 5V positive output for stable power regulation
• Includes thermal overload shutdown and short-circuit current limiting protection
• Offers high ripple rejection performance for clean power delivery

Voltage Regulators - Linear Regulator Controllers Applications

• High efficiency linear regulator circuits
• Post-regulation for switching power supplies
• Microprocessor power supply systems
• Motherboard block power distribution

Voltage Regulators - Linear Regulator Controllers Procurement Notes

Verify the manufacturer designation as Shenzhen Slkormicro Semicon Co., Ltd. when sourcing this component. Confirm that the package type matches the required PCB footprint, typically TO-220 or similar through-hole configurations for this series. Ensure compliance with RoHS standards if required by the final assembly specifications. Cross-reference datasheet parameters such as dropout voltage and PSRR against specific application requirements before procurement.

Voltage Regulators - Linear Regulator Controllers Selection Notes

Select this regulator for applications requiring a robust 5V source with up to 1.5A capability. Consider the 2V dropout voltage when determining the minimum input voltage needed to maintain regulation under full load. The wide operating temperature range supports use in industrial environments. Verify that the thermal management strategy accommodates the power dissipation expected at the target load current and ambient temperature conditions.

Voltage Regulators - Linear Regulator Controllers Part Context

This component belongs to the 78Mxx series of positive voltage regulators, a standard family known for reliability and ease of use. The '05' suffix indicates the fixed 5V output voltage, while the 'B' variant may denote specific manufacturing revisions or packaging options from Slkor. These regulators are widely used in general-purpose electronics for providing stable DC voltages from higher unregulated sources.

Voltage Regulators - Linear Regulator Controllers Replacement Considerations

Compatible substitutes include the SL7805 from the same manufacturer, which offers similar 1A output characteristics. Other industry-standard equivalents like the L78M05 or MC78M05 provide comparable functionality but may differ in package style or exact thermal ratings. Always verify pinout compatibility and thermal performance before substituting.