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. 809-1310
Mfr. Part No.VNP35N07-E
$8.275
Each (In a Pack of 2)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 35A - - - - Through Hole TO-220 3 -
RS Stock No. 168-7848
Mfr. Part No.VNP35N07-E
$6.13
Each (In a Tube of 50)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 35A - - - - Through Hole TO-220 3 -
RS Stock No. 920-6323
Mfr. Part No.TDE1798DP
$8.537
Each (In a Tube of 50)
units
- High Speed - - 50 V 8mA 1 - - - Through Hole PDIP 8 +85 °C
RS Stock No. 189-1201
Mfr. Part No.TDE1798DP
$9.91
Each
units
- High Speed Switch - - 50 V 8mA 1 - - - Through Hole PDIP 8 +85 °C
RS Stock No. 168-8914
Mfr. Part No.VNB20N07-E
$3.992
Each (In a Tube of 50)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 20A - - - - Surface Mount D2PAK 3 -
RS Stock No. 877-3138
Mfr. Part No.VNB20N07TR-E
$5.068
Each (In a Pack of 5)
units
- - - - - - - - - - Surface Mount D2PAK 3 -
RS Stock No. 877-3129
Mfr. Part No.VNB20N07-E
$5.068
Each (In a Pack of 5)
units
- - - - - - - - - - Surface Mount D2PAK 3 -
RS Stock No. 165-5330
Mfr. Part No.VNB20N07TR-E
$3.127
Each (On a Reel of 1000)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 20A - - - - Surface Mount D2PAK 3 -
RS Stock No. 168-6834
Mfr. Part No.VN340SP-E
$7.294
Each (In a Tube of 50)
units
High Side Solid State Relay 0.2Ω - 36 V 0.7A 4 - - - Surface Mount SOIC 10 +150 °C
RS Stock No. 714-1170
Mfr. Part No.VN340SP-E
$8.58
Each
units
High Side High Side Solid State Relay 0.2Ω - 36 V 0.7A 4 - - - Surface Mount SOIC 10 +150 °C
RS Stock No. 168-8922
Mfr. Part No.STMPS2141STR
$0.319
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. 165-5311
Mfr. Part No.VND5160JTR-E
$1.74
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -
RS Stock No. 880-5406
Mfr. Part No.STMPS2141STR
$0.825
Each (In a Pack of 10)
units
High Side MOSFET 160mΩ - 5.5 V 0.5A 1 - - - Surface Mount SOT-23 5 +125 °C
RS Stock No. 880-5541
Mfr. Part No.VND5160JTR-E
$4.178
Each (In a Pack of 5)
units
High Side High Side Driver 320mΩ - 36 V 5A 2 - - - Surface Mount PowerSSO 12 +150 °C
RS Stock No. 168-6836
Mfr. Part No.VN808CM-E
$8.862
Each (In a Tube of 31)
units
- - - - 45 V 700mA 8 8 - - Surface Mount PowerSO 36 +125 °C
RS Stock No. 165-5418
Mfr. Part No.VN5016AJTR-E
$2.267
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -
RS Stock No. 168-7323
Mfr. Part No.VNB14NV04-E
$3.00
Each (In a Tube of 50)
units
- - - - - - 1 - - - Surface Mount D2PAK 3 -
RS Stock No. 880-5544
Mfr. Part No.VN920B5-E
$5.036
Each (In a Pack of 5)
units
High Side Driver 55mΩ - 36 V 30A 1 - - - Surface Mount P2PAK 5 +150 °C
RS Stock No. 168-8692
Mfr. Part No.ISO8200B
$11.076
Each (In a Tube of 31)
units
High Side Smart Power SSR 0.24Ω - 36 V 0.7A 8 - - - Surface Mount PowerSO 36 +125 °C
RS Stock No. 165-5294
Mfr. Part No.VN5160STR-E
$1.217
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -