Power Switch ICs

Power switch ICs (integrated circuits) are electronic components that control the power for another device within the circuit. They are used to enable or disable a power rail. Power switches are often used to control the current to a USB connector to prevent short-circuiting. These switches provide protection for circuits which may experience overload or high operating temperatures. Load switches are active whenever the power is switched on and therefore offer low leakage currents. Load switches are often used instead of a MOSFET as they offer additional protection from a smaller package.

When choosing a power switch it is important to consider the current limit levels. These levels can be fixed or adjustable depending on the device. Power switch ICs come in a standard semiconductor package, such as a SOT-21, SSOP and PDIP.

Where are they used?

  • USB ports (e.g. USB-C)
  • Desktop computers
  • Docking stations
  • General switching or linear applications

High-side and Low-side Switches

High-side switches sit between the positive power line and the load. Low-side switches sit between the load and the ground. High-side switches are more commonly used in heavy-load applications where a short circuit is more likely at the ground. Low-side switches are often cheaper and ideal for when load is controlled through a high-speed PWM. There are also H-bridge switch ICs which require both high-side and low-side switches.

What is an Intelligent Power Switch (IPS)?

Intelligent power switches are ICs that are largely used in the automotive applications. They also play a big role in the “Smart Home” products. An Intelligent power switch combines multiple actions into a single process. They are used in PAC (Programmable Automation Controller), CNC (Computer Numerical Control) & PLC (Programmable Logic Controller), robotics, agricultural systems, security systems & used in green energy, like wind turbines.


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Description Price Power Switch Topology Power Switch Type Switch On Resistance Number of Channels Maximum Operating Supply Voltage Maximum Operating Current Number of Outputs Number of Inputs Power Rating Protection Features Mounting Type Package Type Pin Count Maximum Operating Temperature
RS Stock No. 174-4048
Mfr. Part No.TBD62004AFG(Z)
BrandToshiba
HK$4.399
Each (In a Tube of 50)
units
- - 3.25Ω 7 25 V 0.5mA - - 1.47W - Surface Mount SOP 16 +85 °C
RS Stock No. 171-3082
Mfr. Part No.TC7USB42MU
BrandToshiba
HK$3.091
Each (In a Pack of 25)
units
- USB 14Ω - 4.3 V 50mA 2 - - - Surface Mount UQFN 10 +85 °C
RS Stock No. 174-4050
Mfr. Part No.TBD62064AFG(Z)
BrandToshiba
HK$10.999
Each (In a Tube of 40)
units
- - 4 25 V 0.2mA - - 1.47W - Surface Mount HSOP 16 +85 °C
RS Stock No. 182-6508
Mfr. Part No.TBD62503AFG(Z,EL)
BrandToshiba
HK$8.187
Each (In a Pack of 10)
units
High Side High Side Switch 0.65Ω 7 25 V 0.1mA - - - - Through Hole DIP 16 +85 °C
RS Stock No. 174-4112
Mfr. Part No.TBD62783AFWG(Z,EHZ
BrandToshiba
HK$6.073
Each (In a Pack of 10)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Surface Mount P-SOP 18 +85 °C
RS Stock No. 174-4115
Mfr. Part No.TBD62783APG(Z,HZ)
BrandToshiba
HK$9.244
Each (In a Pack of 10)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Through Hole DIP 18 +85 °C
RS Stock No. 760-3277
Mfr. Part No.TPD1030F(TE12L,Q)
BrandToshiba
HK$14.108
Each (In a Pack of 5)
units
Low Side Low Side Switch 0.9Ω - 7 V - 2 - 2W - Surface Mount SOP 8 +110 °C
RS Stock No. 171-3040
Mfr. Part No.TC7USB42MU
BrandToshiba
HK$1.779
Each (On a Reel of 3000)
units
- USB 14Ω - 4.3 V 50mA 2 - - - Surface Mount UQFN 10 +85 °C
RS Stock No. 174-4101
Mfr. Part No.TBD62084APG(Z,HZ)
BrandToshiba
HK$8.175
Each (In a Pack of 10)
units
- - 3.25Ω 8 25 V 0.5mA - - 1.47W - Through Hole DIP 18 +85 °C
RS Stock No. 174-4095
Mfr. Part No.TBD62084AFWG(Z,EHZ
BrandToshiba
HK$6.601
Each (In a Pack of 10)
units
- - 3.25Ω 8 25 V 0.5mA - - 1.47W - Surface Mount P-SOP 18 +85 °C
RS Stock No. 168-7439
Mfr. Part No.TPD2005F(EL,F)
BrandToshiba
HK$29.529
Each (On a Reel of 500)
units
High Side High Side Switch 1.2Ω - 40 V - 8 - 1.2W - Surface Mount SSOP 24 +85 °C
RS Stock No. 174-4092
Mfr. Part No.TBD62084AFNG(Z)
BrandToshiba
HK$9.318
Each (In a Pack of 5)
units
- - 3.25Ω 8 25 V 0.5mA - - 1.47W - Surface Mount SSOP 18 +85 °C
RS Stock No. 174-4114
Mfr. Part No.TBD62084AFG(Z)
BrandToshiba
HK$8.188
Each (In a Pack of 5)
units
- - 3.25Ω 8 25 V 0.5mA - - 1.47W - Surface Mount SOP 18 +85 °C
RS Stock No. 144-5288
Mfr. Part No.TBD62083AFG(Z)
BrandToshiba
HK$8.187
Each (In a Pack of 10)
units
High Side High Side - 8 0.6 V, 25 V 0.1mA - - - - Surface Mount SOP 18 +85 °C
RS Stock No. 174-4107
Mfr. Part No.TBD62783AFNG(Z)
BrandToshiba
HK$12.416
Each (In a Pack of 5)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Surface Mount SSOP 18 +85 °C
RS Stock No. 174-4104
Mfr. Part No.TBD62783AFG(Z)
BrandToshiba
HK$10.548
Each (In a Pack of 5)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Surface Mount SOP 18 +85 °C
RS Stock No. 174-4051
Mfr. Part No.TBD62083AFNG(Z)
BrandToshiba
HK$7.765
Each (In a Tube of 60)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Surface Mount SSOP 18 +85 °C
RS Stock No. 174-4097
Mfr. Part No.TBD62004AFWG(Z,EHZ
BrandToshiba
HK$3.70
Each (In a Pack of 10)
units
- - 3.25Ω 7 25 V 0.5mA - - 1.47W - Surface Mount P-SOP 16 +85 °C
RS Stock No. 174-4089
Mfr. Part No.TBD62003AFWG(Z,EHZ
BrandToshiba
HK$3.70
Each (In a Pack of 10)
units
- - 3.25Ω 7 25 V 0.1mA - - 1.47W - Surface Mount P-SOP 16 +85 °C
RS Stock No. 174-4108
Mfr. Part No.TBD62083AFWG(Z,EHZ
BrandToshiba
HK$6.601
Each (In a Pack of 10)
units
- - 3.25Ω 8 25 V 0.1mA - - 1.47W - Surface Mount P-SOP 18 +85 °C