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. 146-5693
Mfr. Part No.TNY280PN
$2.54
Each (In a Tube of 50)
units
- Off Lineer 4.5Ω - - 2550mA 1 - 28.5W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 877-3113
Mfr. Part No.VN5016AJTR-E
$4.422
Each (In a Pack of 5)
units
High Side High Side Driver Switch 32mΩ - 36 V 60A 1 - - - Surface Mount PowerSSO 12 +150 °C
RS Stock No. 165-5418
Mfr. Part No.VN5016AJTR-E
$1.94
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -
RS Stock No. 753-3080
Mfr. Part No.ISP742RIFUMA1
BrandInfineon
$2.13
Each (In a Pack of 2)
units
High Side High Side Switch 700mΩ - 16 V 0.4A 1 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 168-7323
Mfr. Part No.VNB14NV04-E
$2.713
Each (In a Tube of 50)
units
- - - - - - 1 - - - Surface Mount D2PAK 3 -
RS Stock No. 714-7894
Mfr. Part No.VNB14NV04-E
$3.37
Each (In a Pack of 2)
units
- - - - - - 1 - - - Surface Mount D2PAK 3 -
RS Stock No. 919-6686
Mfr. Part No.ISP742RIFUMA1
BrandInfineon
$0.964
Each (On a Reel of 2500)
units
High Side High Side Switch 700mΩ - 16 V 0.4A 1 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 146-5658
Mfr. Part No.TNY277PN
$1.60
Each (In a Tube of 50)
units
- Off Lineer 13.5Ω - - 1650mA 1 - 18W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 110-7115
Mfr. Part No.ITS4300SSJDXUMA1
BrandInfineon
$1.747
Each (In a Pack of 12)
units
High Side High Side Power Switch 600mΩ - 40 V - 1 - - - Surface Mount DSO 8 +125 °C
RS Stock No. 146-8691
Mfr. Part No.LNK306DN
$2.59
Each
units
Low Side Off Lineer 12.9Ω - - 360mA 1 - - Short Circuit Surface Mount SOC 8 +150 °C
RS Stock No. 124-6468
Mfr. Part No.BD2242G-GTR
BrandROHM
$0.838
Each (In a Pack of 15)
units
High Side High Side 89mΩ 1 5.5 V - - - - - Surface Mount SSOP 6 +85 °C
RS Stock No. 919-6595
Mfr. Part No.BTS711L1XUMA1
BrandInfineon
$3.867
Each (On a Reel of 1000)
units
- High Speed 0.165Ω - 16 V 7.5A 4 - - - Surface Mount DSO 20 +150 °C
RS Stock No. 445-2326
Mfr. Part No.BTS711L1XUMA1
BrandInfineon
$8.43
Each
units
- High Speed Switch 0.165Ω - 16 V 7.5A 4 - - - Surface Mount DSO 20 +150 °C
RS Stock No. 166-0787
Mfr. Part No.ITS4300SSJDXUMA1
BrandInfineon
$0.918
Each (On a Reel of 2500)
units
High Side High Side Power Switch 600mΩ - 40 V - 1 - - - Surface Mount DSO 8 +125 °C
RS Stock No. 146-5722
Mfr. Part No.LNK306DN
$1.528
Each (In a Tube of 100)
units
Low Side Off Lineer 12.9Ω - - 360mA 1 - - Short Circuit Surface Mount SOC 8 +150 °C
RS Stock No. 812-3097
Mfr. Part No.SI1869DH-T1-GE3
BrandVishay
$0.608
Each (In a Pack of 20)
units
- - - - - - - - - - Surface Mount SC-70 6 +150 °C
RS Stock No. 146-8596
Mfr. Part No.TNY276PN
$2.63
Each
units
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 146-5641
Mfr. Part No.TNY275GN
$1.775
Each (In a Tube of 50)
units
- Off Lineer 33Ω - - 560mA 1 - 11.5W Over-Temperature Surface Mount SMDC 8 +150 °C
RS Stock No. 146-5643
Mfr. Part No.TNY276PN
$2.05
Each (In a Tube of 50)
units
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 146-5620
Mfr. Part No.LNK564PN
$1.02
Each (In a Tube of 50)
units
- Off Lineer 88Ω - - 375mA 1 - 3W Over-Temperature Through Hole DIPB 8 +150 °C