Load Switch ICs

The load switch IC is a power supply IC fabricated using CMOS processes and featuring built-in output transistors and output drivers. Compared with the conventional discrete configuration, this system is greatly reduced in size. It also features low-voltage operation, low-on-resistance characteristics, and low current consumption, and is equipped with various additional functions. The package lineup focuses on ultra-small products of the 1 mm2 class. In particular, the package lineup provides products that are suitable for use in portable devices that require space saving.

Lineup

You can narrow down the search for applicable products by selecting specifications.

Operating input voltage VIN (Min) (V)
Operating input voltage VIN (Max) (V)
Maximum Output Current (DC) IOUT (DC) (Max) (A)
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Function
Protection
Width×Length×Height
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You can narrow down your search for applicable products by package type or number of pins.

unit:
WCSP4G

Package Size

W : 0.645 mm 0.025 inch
L : 0.645 mm 0.025 inch
H : 0.465 mm 0.018 inch
WCSP4D

Package Size

W : 0.79 mm 0.031 inch
L : 0.79 mm 0.031 inch
H : 0.55 mm 0.022 inch
WCSP4C

Package Size

W : 0.9 mm 0.035 inch
L : 0.9 mm 0.035 inch
H : 0.5 mm 0.020 inch
DFN4A

Package Size

W : 1.2 mm 0.047 inch
L : 1.2 mm 0.047 inch
H : 0.38 mm 0.015 inch
SOT-25 (SMV)

Package Size

W : 2.9 mm 0.11 inch
L : 2.8 mm 0.11 inch
H : 1.1 mm 0.043 inch
WCSP6E

Package Size

W : 1.2 mm 0.047 inch
L : 0.8 mm 0.031 inch
H : 0.55 mm 0.022 inch
WCSP6G

Package Size

W : 1.2 mm 0.047 inch
L : 0.8 mm 0.031 inch
H : 0.35 mm 0.014 inch
WCSP6C

Package Size

W : 1.5 mm 0.059 inch
L : 1.0 mm 0.039 inch
H : 0.5 mm 0.020 inch
WCSP9

Package Size

W : 1.5 mm 0.059 inch
L : 1.5 mm 0.059 inch
H : 0.54 mm 0.021 inch
WCSP16C

Package Size

W : 1.9 mm 0.075 inch
L : 1.9 mm 0.075 inch
H : 0.54 mm 0.021 inch

All package dimensions are guaranteed in millimeters as mentioned on datasheet. Package dimension in inches is round to 2 significant digits converted with 1mm=0.0393701inch.

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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Technical Articles

Smaller Area and Higher Functionality
Toshiba Load Switch ICs have various additional functions that are complicated with the conventional circuit configuration configured with discrete components, such as inrush current reduction, reverse current blocking, overcurrent protection, thermal shutdown, and auto output discharge, in a single-chip IC. They easily realize high-performance systems with a small area and at low cost.
세부 사항
Discrete devices necessary to create a load switch

Power Management ICs / Load Switch ICs

Low input voltage operation/low on-resistance characteristics
Toshiba Load Switch ICs have a wide range of operating voltages and low-on-resistance characteristics, and a series features ultra-low-input voltage operation from 0.75V and low-on-resistance characteristics.

Power Management ICs / Load Switch ICs

Low current consumption characteristic of load switch ICs
The load switch ICs offer a wide range of operating voltages and low current consumption.

Power Management ICs / Load Switch ICs

Overcurrent protection function
Toshiba load switch ICs employ a foldback-type protection circuit control system, which contributes to safety design.

Power Management ICs / Load Switch ICs

Overvoltage protection function
The overvoltage protection function of the load switch IC is for protecting the IC and circuit in subsequent stages by turning off the output when the input voltage exceeds the overvoltage protection threshold voltage.

Power Management ICs / Load Switch ICs

Inrush current reduction circuit
Inrush current reduction is a function that suppresses the inrush current generated during switching with the slew rate control driver circuit (slow start circuit) built into the load switch IC.

Power Management ICs / Load Switch ICs

Thermal shutdown
The thermal shutdown function is a circuit that prevents deterioration and breakdown due to a significant increase in ambient temperature and heat generation of the device itself due to an unintended large current load.

Power Management ICs / Load Switch ICs

Extensive package lineup
The Toshiba load switch ICs incorporate an output transistor and an output driver circuit, and are much smaller than the conventional discrete configuration.

Documents

Name Date

Technical topics

애플리케이션

Wireless Charger
Such as low power consumption and miniaturization are important in designing wireless charger. Toshiba provides information on a wide range of semiconductor products suitable for power supply unit, inverter circuit unit, etc., along with circuit configuration examples.
세부 사항
Solid State Drive
Such as low power consumption and miniaturization are important in designing solid state drive (SSD). Toshiba provides information on a wide range of semiconductor products suitable for power supply/power supply management units, surge/ESD protection circuit units, over temperature monitoring unit, etc., along with circuit configuration examples.
세부 사항

Reference Design

Circuit of application circuits of eFuse IC TCKE805 series.
Application Circuits of eFuse IC TCKE805 Series
Power line protection circuit with TCKE805 series. It achieves rapid shutdown at short circuit, other protection functions, and anti back current circuit with an external MOSFET.
세부 사항
Battery charger circuit of MOSFET Driver IC application and circuit of the TCK401G.
MOSFET Driver IC Application and Circuit of the TCK401G
This reference design provides technical information on slew rate control, auto discharge and other built-in functions for designing load switch circuit suitable for USB-PD.
세부 사항
Battery charger circuit of MOSFET Driver IC application and circuit of the TCK402G.
MOSFET Driver IC Application and Circuit of the TCK402G
This reference design provides technical information on slew rate control, auto discharge and other built-in functions for designing load switch circuit suitable for USB-PD.
세부 사항
Main switch of a rapid-charging circuit of load switch IC TCK301G, TCK302G, TCK303G application & circuit.
Load Switch IC TCK301G, TCK302G, TCK303G Application & Circuit
This reference design provides example circuit of the load switch with low on resistance and built-in in-rush current control function. It is suitable for battery used application.
세부 사항
Battery charger circuit of load switch IC TCK321G, TCK322G, TCK323G application & circuit.
Load Switch IC TCK321G, TCK322G, TCK323G Application & Circuit
This reference design provides document with input selection characteristics. The load switch has small package and low on resistance suitable for battery charging application.
세부 사항

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