S-8355M55MC-MDOT2G

Overview

The S-8355M55MC-MDOT2G is a CMOS step-up switching regulator controller from the ABLIC S-8355 series. It operates with an input voltage range of 0.9V to 10V and provides a fixed output voltage of 5.5V. The device supports a maximum switch current of 300mA and features a selectable switching frequency of either 600kHz or 300kHz. It utilizes PWM control or switchable PWM/PFM modes for efficiency optimization. The component is housed in a compact SOT-23-5 package and is rated for operation within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates reference voltage source and oscillation circuit for step-up regulation
• Supports selectable PWM or PWM/PFM switching modes
• Designed for super-small package applications

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems utilizing single-cell lithium-ion inputs
• Embedded circuits needing stable 5.5V supply from lower voltage sources

Procurement Notes

Verify the specific suffix MDOT2G against the manufacturer's latest datasheet to confirm packaging type and marking codes. Ensure compatibility with external components such as inductors and diodes, as this is a controller IC rather than a complete regulator module. Confirm RoHS compliance status if required by your assembly specifications.

Selection Notes

Select this component when a fixed 5.5V output is required from an input range starting at 0.9V. Consider the S-8355 series for applications demanding high efficiency through switchable PFM/PWM modes. Verify that the external inductor selection supports the internal switch current limits and desired ripple specifications.

Part Context

This part belongs to the ABLIC S-8355/56/57/58 series of CMOS step-up switching regulators. These controllers are designed for low-power applications where space constraints are critical. The series offers various output voltage options and switching frequencies to suit different system requirements while maintaining a small footprint.

Replacement Considerations

Direct substitutes include other parts from the S-8355 series with compatible output voltages and packages. Cross-reference with similar boost controllers from ABLIC offering 0.9V-10V input ranges and SOT-23-5 packaging.