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 257 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. 747-0992
Mfr. Part No.NCP380HSNAJAAT1G
HK$7.456
Each (In a Pack of 5)
units
- - - - 5.5 V 2.1A 2 2 - - Surface Mount TSOP 5 +125 °C
RS Stock No. 145-4618
Mfr. Part No.FSL116HR
HK$7.844
Each (In a Tube of 50)
units
- Integrated PWM Controller 10Ω - 265 V 1A 1 - 14W - Through Hole PDIP 8 +105 °C
RS Stock No. 821-5294
Mfr. Part No.NCP45520IMNTWG-H
HK$8.936
Each (In a Pack of 20)
units
- Controlled Load 22.5mΩ - 5.5 V - 1 - 2.5W - Surface Mount DFN 8 +85 °C
RS Stock No. 124-5360
Mfr. Part No.NCP45520IMNTWG-H
HK$4.276
Each (On a Reel of 3000)
units
- Controlled Load 22.5mΩ - 5.5 V - 1 - 2.5W - Surface Mount DFN 8 +85 °C
RS Stock No. 807-6058
Mfr. Part No.FSL116HR
HK$8.253
Each (In a Pack of 10)
units
- Integrated PWM Controller 10Ω - 265 V 1A 1 - 14W - Through Hole PDIP 8 +105 °C
RS Stock No. 803-1857
Mfr. Part No.FPF2701MX
HK$24.172
Each (In a Pack of 5)
units
- - - - 36 V 2A 1 1 - - Surface Mount SOIC 8 +85 °C
RS Stock No. 747-1027
Mfr. Part No.NCP380LSNAJAAT1G
HK$6.262
Each (In a Pack of 5)
units
- - - - 5.5 V 2.1A 2 2 - - Surface Mount TSOP 6 +125 °C
RS Stock No. 103-5091
Mfr. Part No.NCP380LSNAJAAT1G
HK$2.287
Each (On a Reel of 3000)
units
- - - - 5.5 V 2.1A 2 2 - - Surface Mount TSOP 6 +125 °C
RS Stock No. 166-2917
Mfr. Part No.FPF2701MX
HK$11.253
Each (On a Reel of 2500)
units
- - - - 36 V 2A 1 1 - - Surface Mount SOIC 8 +85 °C
RS Stock No. 805-6751
Mfr. Part No.UAA2016DG
HK$13.482
Each (In a Pack of 10)
units
- - - - - - 1 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 145-4574
Mfr. Part No.FSGM0465RWDTU
HK$18.596
Each (In a Tube of 50)
units
- Off Lineer 2.6Ω - 26 V 1.8A 1 - 60W - Through Hole TO-220F 6 +125 °C
RS Stock No. 121-7895
Mfr. Part No.UAA2016DG
HK$12.222
Each (In a Tube of 98)
units
- - - - - - 1 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 808-8963
Mfr. Part No.FPF2700MPX
HK$24.98
Each (In a Pack of 5)
units
- - - - 36 V 2A 1 1 - - Surface Mount MLP 8 +125 °C
RS Stock No. 772-8904
Mfr. Part No.FSGM0465RWDTU
HK$21.925
Each (In a Pack of 4)
units
- Off Line Switcher 2.6Ω - 26 V 1.8A 1 - 60W - Through Hole TO-220F 6 +125 °C
RS Stock No. 739-5144
Mfr. Part No.FSUSB42MUX
HK$5.66
Each
units
- High Speed USB Controller 6.5Ω - - - 2 - - - Surface Mount MSOP 10 +85 °C
RS Stock No. 121-9890
Mfr. Part No.NCP45560IMNTWG-L
HK$5.717
Each (On a Reel of 3000)
units
- Load Management 5.1mΩ - 5.5 V - 1 - 3.49W - Surface Mount DFN 12 +85 °C
RS Stock No. 124-1411
Mfr. Part No.FPF2700MPX
HK$13.132
Each (On a Reel of 3000)
units
- - - - 36 V 2A 1 1 - - Surface Mount MLP 8 +125 °C
RS Stock No. 864-4743
Mfr. Part No.FSUSB42MUX
HK$2.058
Each (On a Reel of 4000)
units
- USRT Switch 6.5Ω - - - 1 - - - Surface Mount MSOP 10 +85 °C
RS Stock No. 796-1230
Mfr. Part No.NCP45560IMNTWG-L
HK$13.84
Each (On a Tape of 5)
units
- Load Management Switch 5.1mΩ - 5.5 V - 1 - 3.49W - Surface Mount DFN 12 +85 °C
RS Stock No. 808-8910
Mfr. Part No.FPF2006
HK$6.283
Each (In a Pack of 10)
units
- MOSFET Load 1.2Ω - 5.5 V 200mA 1 - 250mW - Surface Mount SC-70 5 +85 °C