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. 165-4064
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
£0.556
Each (On a Reel of 3000)
Units
High Side - 275mΩ - 5.5 V 2A 1 - - - Surface Mount SOT-23 6 +85 °C
RS Stock No. 146-5636
Mfr. Part No.TNY275PN
£0.716
Each (In a Tube of 50)
Units
- Off Lineer 33Ω - - 560mA 1 - 11.5W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 910-1688
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
£0.732
Each (In a Pack of 5)
Units
High Side - 275mΩ - 5.5 V 2A 1 - - - Surface Mount SOT-23 6 +85 °C
RS Stock No. 747-0995
Mfr. Part No.NCP380HSN05AAT1G
£0.518
Each (In a Pack of 5)
Units
- - - - 5.5 V 0.5A 2 2 - - Surface Mount TSOP 5 +125 °C
RS Stock No. 170-3439
Mfr. Part No.NCP380HSN05AAT1G
£0.179
Each (On a Reel of 3000)
Units
- - - - 5.5 V 0.5A 2 2 - - Surface Mount TSOP 5 +125 °C
RS Stock No. 165-5294
Mfr. Part No.VN5160STR-E
£0.463
Each (On a Reel of 2500)
Units
- - - - - - - - - - - - - -
RS Stock No. 919-6692
Mfr. Part No.ITS4141NHUMA1
BrandInfineon
£0.728
Each (On a Reel of 4000)
Units
High Side High Side Switch 320mΩ - 48 V 0.7A 1 - - - Surface Mount SOT-223 3 + Tab +85 °C
RS Stock No. 146-5699
Mfr. Part No.LNK364DN
£0.682
Each (In a Tube of 100)
Units
- Off Lineer 45Ω - - 750mA 1 - 6W Short Circuit Surface Mount SOC 8 +150 °C
RS Stock No. 165-5516
Mfr. Part No.STMPS2151STR
£0.146
Each (On a Reel of 3000)
Units
High Side MOSFET 160mΩ - 5.5 V 0.5A 1 - - - Surface Mount SOT-23 5 +125 °C
RS Stock No. 110-9105
Mfr. Part No.BTS611L1E3128ABUMA1
BrandInfineon
£2.73
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. 877-3122
Mfr. Part No.VN5160STR-E
£0.955
Each (In a Pack of 10)
Units
High Side High Side Driver Switch 320mΩ - 36 V 5A 1 - - - Surface Mount SOIC 8 +150 °C
RS Stock No. 858-0728
Mfr. Part No.LTC1153IS8#PBF
£4.75
Each (In a Pack of 2)
Units
- - - - 18 V 2A 1 1 - - Surface Mount SOIC 8 -
RS Stock No. 166-1196
Mfr. Part No.BTS611L1E3128ABUMA1
BrandInfineon
£1.228
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. 827-5265
Mfr. Part No.BSP75NHUMA1
BrandInfineon
£0.856
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. 880-5415
Mfr. Part No.STMPS2151STR
£0.374
Each (In a Pack of 25)
Units
High Side MOSFET 160mΩ - 5.5 V 0.5A 1 - - - Surface Mount SOT-23 5 +125 °C
RS Stock No. 753-3093
Mfr. Part No.ITS4141NHUMA1
BrandInfineon
£1.245
Each (In a Pack of 2)
Units
High Side High Side Switch 320mΩ - 48 V 0.7A 1 - - - Surface Mount SOT-223 3 + Tab +85 °C
RS Stock No. 124-8771
Mfr. Part No.BSP75NHUMA1
BrandInfineon
£0.439
Each (On a Reel of 4000)
Units
Low Side Low Side Switch 550mΩ - 60 V 0.7A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 827-5322
Mfr. Part No.BTS4140NHUMA1
BrandInfineon
£0.871
Each (In a Pack of 20)
Units
High Side High Side Switch 3000mΩ - 60 V 0.2A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 124-8773
Mfr. Part No.BTS4140NHUMA1
BrandInfineon
£0.462
Each (On a Reel of 4000)
Units
High Side High Side Switch 3000mΩ - 60 V 0.2A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 124-6468
Mfr. Part No.BD2242G-GTR
BrandROHM
£0.451
Each (In a Pack of 15)
Units
High Side High Side 89mΩ 1 5.5 V - - - - - Surface Mount SSOP 6 +85 °C
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