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. 190-4546
Mfr. Part No.MAX8586ETA+T
SGD1.418
Each (On a Reel of 2500)
units
- - 95mΩ - 5.5 V 55µA - - - Thermal Shutdown Surface Mount TDFN 8 +85 °C
RS Stock No. 190-0562
Mfr. Part No.MAX890LESA+
SGD4.966
Each (In a Pack of 5)
units
- - - - 5.5 V 1.2A 2 2 - - Surface Mount SOIC 8 +85 °C
RS Stock No. 191-5061
Mfr. Part No.MAX16946GTE/V+
SGD5.89
Each (In a Pack of 2)
units
High Side High Side - 1 18 V 2.6mA - - - - Surface Mount TQFN 16 +105 °C
RS Stock No. 204-2499
Mfr. Part No.MAX20088ATPA/VY+
SGD4.016
Each (In a Pack of 5)
units
- - - - 15 V 0.6A 2 1 - - - SWTQFN-EP 20 -
RS Stock No. 191-3302
Mfr. Part No.MAX14900EAGM+CKT
SGD14.154
Each (In a Tray of 260)
units
High Side High Side 165mΩ - 36 V 1.5mA - - - Thermal Shutdown Surface Mount QFN 48 +125 °C
RS Stock No. 190-8007
Mfr. Part No.MAX8586ETA+T
SGD2.176
Each (In a Pack of 10)
units
- - 95mΩ - 5.5 V 55µA - - - Thermal Shutdown Surface Mount TDFN 8 +85 °C
RS Stock No. 190-6493
Mfr. Part No.MAX4906FELB+T
SGD5.46
Each (In a Pack of 2)
units
- High/Full-Speed USB - 3.6 V - - - - - Surface Mount μDFN 10 +85 °C
RS Stock No. 189-7036
Mfr. Part No.MAX890LESA+
SGD3.766
Each (In a Tube of 100)
units
- - - - 5.5 V 1.2A 2 2 - - Surface Mount SOIC 8 +85 °C
RS Stock No. 205-6241
Mfr. Part No.MAX17613AATP+
SGD6.565
Each (In a Pack of 2)
units
- - - - - - 1 1 - - - TQFN 20 -
RS Stock No. 205-6240
Mfr. Part No.MAX17613AATP+
SGD4.28
Each (In a Tray of 490)
units
- - - - - - 1 1 - - - TQFN 20 -
RS Stock No. 168-2902
Mfr. Part No.MAX14002AAP+
SGD8.82
Each
units
- - - 1 3.6 V, 5.5 V 1.5 mA, 8mA - - - - Surface Mount SSOP 20 +125 °C
RS Stock No. 190-1262
Mfr. Part No.MAX891LEUA+
SGD5.75
Each (In a Pack of 5)
units
- - - - 5.5 V 0.5A 1 1 - - Surface Mount μMAX 8 +85 °C
New
RS Stock No. 213-3012
Mfr. Part No.MAX14914BATE+
SGD3.463
Each (In a Tray of 490)
units
- High side 120mΩ 1 60 V 0.0014A - - - - - TQFN 16 -
RS Stock No. 190-4531
Mfr. Part No.MAX7360ETL+
SGD7.155
Each (In a Tube of 60)
units
- - - - 3.6 V 50µA - - - - Surface Mount TDFN 40 +85 °C
RS Stock No. 190-4513
Mfr. Part No.MAX1823BEUB+
SGD3.043
Each (In a Tube of 50)
units
High Side High Side 165mΩ - 5.5 V 100µA - - - Thermal Shutdown Surface Mount μMAX 10 +85 °C
RS Stock No. 190-8215
Mfr. Part No.MAX1946ETA+T
SGD1.785
Each (In a Pack of 10)
units
- - 125mΩ - 5.5 V 60µA - - - Thermal Shutdown Surface Mount TDFN 8 +85 °C
New
RS Stock No. 213-3011
Mfr. Part No.MAX14914AATE+
SGD5.594
Each (In a Pack of 5)
units
- High side 120mΩ 1 60 V 0.0014A - - - - - TQFN 16 -
RS Stock No. 204-2498
Mfr. Part No.MAX20088ATPA/VY+
SGD4.088
Each (In a Tube of 60)
units
- - - - 15 V 0.6A 2 1 - - - SWTQFN-EP 20 -
RS Stock No. 164-5233
Mfr. Part No.MAX14912AKN+
SGD16.78
Each
units
High Side Push-Pull Driver 230mΩ 8 36 V 1.5 A, 22A - - - - Surface Mount QFN 56 +125 °C
RS Stock No. 191-3938
Mfr. Part No.MAX16946GTE/V+
SGD4.45
Each (In a Tube of 75)
units
High Side High Side - 1 18 V 2.6mA - - - - Surface Mount TQFN 16 +105 °C