TCK128BG,LF

Overview

The TCK128BG,LF is a single-channel high-side load switch IC manufactured by Toshiba Semiconductor and Storage. It utilizes a P-channel MOSFET output configuration with an open/switch interface. The device supports a load voltage range of 1V to 5.5V and delivers a maximum output current of 1A. Key electrical characteristics include a typical on-resistance of 343 milliohms and non-inverting input logic. Integrated features include controlled slew rate and load release capabilities. The component operates within a temperature range of -40°C to 85°C and is housed in a 4-WCSPG package measuring 0.65x0.65 mm.

Feature Summary

• Integrates controlled slew rate functionality to manage inrush currents during turn-on events.
• Provides load release capability for safe power-down sequences.
• Features a compact 4-WCSPG surface-mount package optimized for space-constrained designs.

Applications

• Portable electronic devices requiring efficient power distribution management
• Battery-powered systems needing low quiescent current load switching
• Consumer electronics utilizing high-side switching for peripheral control

Procurement Notes

Verify the specific suffix designation against official Toshiba documentation to confirm pinout and electrical specifications. Ensure the procurement channel provides genuine components with traceable manufacturing dates. Confirm that the 4-WCSPG package dimensions align with the target PCB footprint requirements before finalizing orders.

Selection Notes

Select this component when a single high-side switch with moderate current capacity is required. The P-channel architecture simplifies drive circuitry compared to N-channel alternatives. Consider the 343 milliohm on-resistance for thermal management calculations. Verify that the 1A current limit meets the downstream load requirements without triggering protection mechanisms.

Part Context

This part belongs to the TCK series of load switches from Toshiba Semiconductor and Storage. The series focuses on power distribution solutions for portable applications. The TCK128 variant specifically addresses needs for single-channel switching with integrated protection and control features. It complements other Toshiba PMIC offerings for comprehensive power management strategies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Toshiba documentation or authorized distributors for verified cross-reference data before considering alternative components.