S-8355K18MC-NADT2G

Overview

The S-8355K18MC-NADT2G is a step-up switching controller IC from the ABLIC S-8355 series, designed for DC-DC boost applications. It operates within a supply voltage range of 0.9V to 10V and features a fixed output voltage of 1.8V. The device utilizes PWM/PFM control modes and supports a switching frequency of 600kHz. It is housed in an SC-74A (SOT-753) surface-mount package with five pins. The component functions as a transistor driver for external power switches and includes an enable function for power management.

Feature Summary

• Integrated PWM/PFM control mode for efficient power conversion
• Built-in enable function for system power control
• Designed for compact surface-mount integration

Applications

• Portable electronic devices requiring low-voltage boost regulation
• Battery-powered systems utilizing single-cell lithium-ion sources
• General-purpose DC-DC step-up converter circuits

Procurement Notes

Verify the specific suffix NADT2G against official ABLIC documentation to confirm pinout compatibility and marking codes. Ensure the ordering quantity aligns with manufacturer reel specifications. Cross-reference the RoHS status and environmental compliance data directly from the current datasheet before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.8V output is required from a variable input source between 0.9V and 10V. The 600kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the external MOSFET selection matches the drive capability of the IC's output stage.

Part Context

This part belongs to the S-8355/56/57/58 family of switching controllers. These devices are engineered for high efficiency in portable equipment. The S-8355 variant specifically provides a fixed output voltage option, distinguishing it from adjustable variants within the same product line.

Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pin compatibility and electrical parameters if considering alternative manufacturers.