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. 165-8024
Mfr. Part No.BTS442E2E3062ABUMA1
BrandInfineon
MYR18.109
Each (On a Reel of 1000)
units
High Side High Side Switch 35mΩ - 42 V 21A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 898-6965
Mfr. Part No.BTS442E2E3062ABUMA1
BrandInfineon
MYR39.015
Each (In a Pack of 2)
units
High Side High Side Switch 35mΩ - 42 V 21A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 110-9105
Mfr. Part No.BTS611L1E3128ABUMA1
BrandInfineon
MYR13.09
Each (In a Pack of 5)
units
High Side High Side Power Switch 400mΩ - 43 V 4.4A 2 - - - Surface Mount TO-263 7 +150 °C
RS Stock No. 166-1196
Mfr. Part No.BTS611L1E3128ABUMA1
BrandInfineon
MYR9.479
Each (On a Reel of 1000)
units
High Side High Side Power Switch 400mΩ - 43 V 4.4A 2 - - - Surface Mount TO-263 7 +150 °C
RS Stock No. 825-9143
Mfr. Part No.BTS724GXUMA1
BrandInfineon
MYR24.194
Each (In a Pack of 5)
units
High Side High Side Switch 180mΩ - 40 V 3.3A 4 - - - Surface Mount DSO 20 +150 °C
RS Stock No. 110-7454
Mfr. Part No.BTS409L1E3062ABUMA1
BrandInfineon
MYR17.002
Each (On a Tape of 5)
units
High Side High Side Power Switch 400mΩ - 43 V 2.3A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 166-1192
Mfr. Part No.BTS409L1E3062ABUMA1
BrandInfineon
MYR7.494
Each (On a Reel of 1000)
units
High Side High Side Power Switch 400mΩ - 43 V 2.3A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 110-7721
Mfr. Part No.TLE6232GPAUMA2
BrandInfineon
MYR40.035
Each (In a Pack of 2)
units
Low Side Low Side Power Switch - 5.5 V 2A 6 - - - Surface Mount DSO-36 36 +150 °C
RS Stock No. 124-8772
Mfr. Part No.BSP742RXUMA1
BrandInfineon
MYR3.67
Each (On a Reel of 2500)
units
High Side High Side Switch 700mΩ - 34 V 0.4A 1 - - - Surface Mount DSO 8 +150 °C
RS Stock No. 165-8274
Mfr. Part No.AUIPS7081STRL
BrandInfineon
MYR12.534
Each (On a Reel of 800)
units
High Side High Side Switch 130mΩ - 5.5 V 2.3A 1 - - - Surface Mount D2Pak 5 +150 °C
RS Stock No. 827-5259
Mfr. Part No.BSP742RIXUMA1
BrandInfineon
MYR5.40
Each (In a Pack of 20)
units
High Side High Side Switch 700mΩ - 34 V 0.4A 1 - - - Surface Mount DSO 8 +150 °C
RS Stock No. 827-5265
Mfr. Part No.BSP75NHUMA1
BrandInfineon
MYR4.599
Each (In a Pack of 25)
units
Low Side Low Side Switch 550mΩ - 60 V 0.7A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 753-2882
Mfr. Part No.BTS462TATMA1
BrandInfineon
MYR9.545
Each (In a Pack of 2)
units
High Side High Side Switch 200mΩ - 16 V 4.4A 1 - - - Surface Mount TO-252 5 +150 °C
RS Stock No. 911-1017
Mfr. Part No.BSP452HUMA1
BrandInfineon
MYR4.866
Each (On a Reel of 4000)
units
- - - - - - - - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 827-5277
Mfr. Part No.BSP742RXUMA1
BrandInfineon
MYR6.962
Each (In a Pack of 20)
units
High Side High Side Switch 700mΩ - 34 V 0.4A 1 - - - Surface Mount DSO 8 +150 °C
RS Stock No. 124-8741
Mfr. Part No.BTS724GXUMA1
BrandInfineon
MYR12.422
Each (On a Reel of 1000)
units
High Side High Side Switch 180mΩ - 40 V 3.3A 4 - - - Surface Mount DSO 20 +150 °C
RS Stock No. 919-6668
Mfr. Part No.BTS5016SDAAUMA1
BrandInfineon
MYR6.143
Each (On a Reel of 2500)
units
High Side High Side Switch 42mΩ - 38 V 6.5A 2 - - - Surface Mount TO-252 5 +150 °C
RS Stock No. 823-5576
Mfr. Part No.BSP452HUMA1
BrandInfineon
MYR8.452
Each (In a Pack of 5)
units
- - - - - - - - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 907-4968
Mfr. Part No.AUIPS7081STRL
BrandInfineon
MYR16.20
Each (In a Pack of 4)
units
High Side High Side Switch 130mΩ - 5.5 V 2.3A 1 - - - Surface Mount D2Pak 5 +150 °C
RS Stock No. 753-2894
Mfr. Part No.BTS5016SDAAUMA1
BrandInfineon
MYR11.905
Each (In a Pack of 2)
units
High Side High Side Switch 42mΩ - 38 V 6.5A 2 - - - Surface Mount TO-252 5 +150 °C