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.


...
Read more Read less

Filters

Viewing 1 - 20 of 1150 products
Results per page
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. 146-5721
Mfr. Part No.TOP258PN
PHP115.248
Each (In a Tube of 50)
units
- Off Lineer 2.9Ω - - 6.88A 1 - 50W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 146-5632
Mfr. Part No.TNY274PN
PHP46.305
Each (In a Tube of 50)
units
- Off Lineer 48Ω - - 750mA 1 - 8.5W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 146-5682
Mfr. Part No.TOP255EN
PHP79.233
Each (In a Tube of 48)
units
- Off Lineer 4.7Ω - - 2.72A 1 - 57W Over-Temperature Surface Mount ESIPC 7 +150 °C
RS Stock No. 146-5724
Mfr. Part No.TOP258MN
PHP117.306
Each (In a Tube of 50)
units
- Off Lineer 2.9Ω - - 6.88A 1 - 92W Over-Temperature Through Hole SDIPC 10 +150 °C
RS Stock No. 146-5679
Mfr. Part No.TNY279PN
PHP74.088
Each (In a Tube of 50)
units
- Off Lineer 6.7Ω - - 2250mA 1 - 25W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 146-5630
Mfr. Part No.LNK364PN
PHP42.189
Each (In a Tube of 50)
units
- Off Lineer 45Ω - - 750mA 1 - 6W Short Circuit Through Hole DIPB 8 +150 °C
RS Stock No. 146-5668
Mfr. Part No.TOP253GN
PHP68.575
Each (In a Tube of 50)
units
- Off Lineer 15.2Ω - - 1.37A 1 - 25W Over-Temperature Surface Mount SMDC 8 +150 °C
RS Stock No. 919-6692
Mfr. Part No.ITS4141NHUMA1
BrandInfineon
PHP62.265
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. 753-3093
Mfr. Part No.ITS4141NHUMA1
BrandInfineon
PHP82.32
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. 146-5669
Mfr. Part No.TOP253EN
PHP66.885
Each (In a Tube of 48)
units
- Off Lineer 15.2Ω - - 1.37A 1 - 29W Over-Temperature Surface Mount ESIPC 7 +150 °C
RS Stock No. 864-4995
Mfr. Part No.FSFR2100
PHP276.869
Each (In a Tube of 19)
units
- Power Switch 4.75Ω - 25 V 8.3A 1 - 200W - Through Hole SIP 9 +130 °C
RS Stock No. 146-5658
Mfr. Part No.TNY277PN
PHP56.595
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. 671-0185
Mfr. Part No.FSFR2100
PHP324.65
Each
units
- - 0.32Ω - - - 1 - - - Through Hole SIP 9 +130 °C
RS Stock No. 920-8953
Mfr. Part No.VNP10N07-E
PHP81.291
Each (In a Tube of 50)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 10A 1 - - - Through Hole TO-220 3 -
RS Stock No. 862-9123
Mfr. Part No.FSL156MRIN
PHP83.864
Each (In a Pack of 5)
units
- PWM Controller 2.2Ω - - 1.6A 1 - 26W - Through Hole PDIP 8 +125 °C
RS Stock No. 124-1412
Mfr. Part No.FPF2700MX
PHP61.74
Each (On a Reel of 2500)
units
- - - - 36 V 2A 1 1 - - Surface Mount SOIC 8 +125 °C
RS Stock No. 123-5388
Mfr. Part No.LNK603DG
PHP45.885
Each (In a Pack of 10)
units
- - - - - - - - - - Surface Mount SOIC 7 +150 °C
RS Stock No. 145-4643
Mfr. Part No.FSL156MRIN
PHP71.516
Each (In a Tube of 50)
units
- PWM Controller 2.2Ω - - 1.6A 1 - 26W - Through Hole PDIP 8 +125 °C
RS Stock No. 146-5703
Mfr. Part No.LNK603DG
PHP38.85
Each (In a Tube of 100)
units
- - - - - - - - - - Surface Mount SOC 7 +150 °C
RS Stock No. 146-5643
Mfr. Part No.TNY276PN
PHP51.45
Each (In a Tube of 50)
units
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C