S-8541B00FN-IMDT2G

Overview

The S-8541B00FN-IMDT2G is a CMOS step-down switching regulator controller from the S-8540/8541 series, manufactured by ABLIC Inc. It features PWM/PFM switchover control to maintain high efficiency across varying load conditions. The device operates with an oscillation frequency of 600 kHz and utilizes an 8-pin MSOP package. It includes built-in phase compensation, error amplifiers, and current limit circuits for stable regulation.

Feature Summary

• PWM/PFM switchover control circuit for optimized efficiency at light loads
• Built-in current limit circuit for protection
• High oscillation frequency enabling use of small external components
• Phase compensation circuit for stable operation

Applications

• Main power supply units for portable devices
• Battery-powered equipment requiring high efficiency
• Compact electronic systems with space constraints

Procurement Notes

Verify the specific suffix 'IMDT2G' against the official datasheet to confirm pinout and marking codes. Confirm RoHS compliance status as per the latest manufacturer statement. Check for obsolescence notices or PCN updates regarding material changes before finalizing procurement plans.

Selection Notes

Select this component when designing compact DC-DC converters requiring high efficiency under variable loads. The 600 kHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Ensure input voltage ranges match the application requirements for the S-8541 series.

Part Context

This part belongs to the S-8540/8541 series of step-down switching regulator controllers. The S-8541 variant specifically offers PWM/PFM switchover, distinguishing it from the fixed-PWM S-8540 series. Both series are designed for portable applications due to their small package size and high-frequency operation capabilities.

Replacement Considerations

Direct substitutes within the same family include other S-8541 variants with different output voltage settings or package options. Verify compatibility with existing PCB footprints and external component values when considering alternative part numbers.