TCK126BG,LF

Overview

The TCK126BG,LF is a single-channel load switch IC manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.0V to 5.5V and supports a maximum output current of 1A. The device features a typical on-resistance of 343 milliohms and an active-high interface. Key functional characteristics include controlled slew rate and load release capabilities. It is housed in a compact 4-WCSPG package with dimensions of 0.65x0.65 mm. The component is designed for surface mount installation and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates controlled slew rate functionality to manage inrush currents during power-up sequences.
• Provides load release capability to safely discharge external capacitive loads upon shutdown.
• Utilizes an active-high input interface for straightforward logic control integration.

Applications

• Power distribution networks in portable consumer electronics
• Load switching for peripheral devices in mobile communication systems
• Power management units requiring controlled ramp-up times

Procurement Notes

Verify the specific suffix and tape-and-reel specifications against the official Toshiba datasheet prior to ordering. Confirm that the 4-WCSPG package footprint matches the target PCB layout requirements. Ensure the active-high logic polarity aligns with the system control signals. Validate RoHS compliance status through authorized distributors to meet environmental regulations.

Selection Notes

Select this component when a low-profile solution is required for single-channel power gating with precise current limiting needs. The integrated slew rate control makes it suitable for applications sensitive to voltage transients. Consider the 343 milliohm on-resistance for efficiency calculations in low-voltage environments. Evaluate the 1A current limit against peak load demands to ensure adequate headroom.

Part Context

This part belongs to the TCK series of load switches from Toshiba Semiconductor and Storage. It serves as a discrete power management element within larger PMIC architectures or standalone power rails. The device complements other Toshiba offerings like the TCK112 and TCK304 by providing a specialized single-channel option with specific analog control features rather than high-current multiplexing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.