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Product Detailed Parameters
- Description:IC PWR SWITCH P-CHAN 1:1 4WCSPD
- Series:-
- Mfr:Toshiba Semiconductor and Storage
- Package:Tape & Reel (TR),Cut Tape (CT)
- Switch Type:General Purpose
- Number of Outputs:1
- Ratio - Input:Output:1:01
- Output Configuration:High Side
- Output Type:P-Channel
- Interface:On/Off
- Voltage - Load:1.1V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):Not Required
- Current - Output (Max):1A
- Rds On (Typ):34mOhm
- Input Type:Non-Inverting
- Features:Load Discharge, Slew Rate Controlled
- Fault Protection:-
- Operating Temperature:-40°C ~ 85°C (TA)
- Mounting Type:Surface Mount
- Supplier Device Package:4-WCSPD (0.79x0.79)
- Package / Case:4-UFBGA, WLCSP
- Grade:-
- Qualification:-
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Overview
The TCK108AG,LF is a high-side load switch IC featuring a P-channel output and an On/Off interface. It operates with a load voltage range of 1.1V to 5.5V and does not require a separate supply voltage. The device supports a maximum output current of 1A with a typical on-resistance of 49mΩ at 5.0V and 500mA. It includes slew rate control and an output auto-discharge function. Operating temperature ranges from -40°C to 85°C in a 4-WCSP package.
Feature Summary
- Features controlled slew rate driver to minimize inrush current during switching events.
- Includes output auto-discharge function to rapidly pull down the output voltage when turned off.
- Operates without a separate supply voltage requirement, simplifying circuit design.
- Provides high-side switching capability for general power management applications.
Applications
- Portable cellular phone power distribution
- High-density board assembly in mobile equipment
- IoT wearable device power management
Procurement Notes
Verify the specific suffix 'AG' against official Toshiba documentation to confirm feature set alignment, as variations may exist within the TCK108 family. Ensure the 'LF' designation confirms lead-free compliance for your manufacturing requirements. Cross-reference the 4-WCSP package dimensions with your PCB footprint library to guarantee mechanical compatibility before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high-side switching with minimal external components due to the lack of required supply voltage. The integrated auto-discharge feature makes it suitable for systems needing fast output discharge times. Consider the 49mΩ on-resistance for efficiency calculations under 500mA loads. The ultra-small WCSP4 package is ideal for space-constrained portable designs where board density is critical.
Part Context
This part belongs to the TCK106G/TCK107G/TCK108G series of CMOS linear integrated circuits. These devices are designed for general power management in ultra-small packages. The TCK108 variant specifically distinguishes itself by including the output auto-discharge function, unlike the TCK106G. The series targets consumer electronics requiring low profile and high reliability.
Replacement Considerations
The TCK107G,LF is a verified substitute within the same family that shares identical electrical characteristics and package dimensions but lacks the output auto-discharge function. Verify if the absence of auto-discharge impacts system safety or performance requirements before substitution.
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