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 21 - 40 of 1174 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. 862-8791
Mfr. Part No.FR015L3EZ
£0.354
Each (In a Pack of 25)
Units
- Reverse Polarity Protector 30mΩ - 1.3 V 8A 1 - - - Surface Mount MLP 6 +125 °C
RS Stock No. 146-5643
Mfr. Part No.TNY276PN
£0.762
Each (In a Tube of 50)
Units
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 862-9094
Mfr. Part No.FSL117MRIN
£0.918
Each (In a Pack of 5)
Units
- PWM Controller 11Ω - - 0.8A 1 - 10W - Through Hole PDIP 8 +125 °C
RS Stock No. 146-8596
Mfr. Part No.TNY276PN
£1.00
Each
Units
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C
RS Stock No. 910-1509
Mfr. Part No.MIC2026-1YM
BrandMicrochip
£0.762
Each (In a Pack of 10)
Units
High Side USB Power 90mΩ - 5.5 V 0.9A 4 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 165-4087
Mfr. Part No.MIC2026-1YM
BrandMicrochip
£0.64
Each (In a Tube of 95)
Units
High Side USB Power 90mΩ - 5.5 V 0.9A 4 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 165-4275
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
£0.58
Each (On a Reel of 2500)
Units
High Side USB Power 90mΩ - 5.5 V 0.9A 4 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 910-1676
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
£0.762
Each (In a Pack of 10)
Units
High Side - 170mΩ - 5.5 V - 2 - - - Surface Mount SOIC 8 +85 °C
RS Stock No. 905-4624
Mfr. Part No.1689
£19.76
Each
Units
- - - - - - - - - - Panel Mount - - -
RS Stock No. 823-5576
Mfr. Part No.BSP452HUMA1
BrandInfineon
£1.418
Each (In a Pack of 5)
Units
- - - - - - - - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 146-5635
Mfr. Part No.TNY274GN
£1.02
Each (In a Tube of 50)
Units
- Off Lineer 48Ω - - 750mA 1 - 8.5W Over-Temperature Surface Mount SMDC 8 +150 °C
RS Stock No. 533-890
Mfr. Part No.TNY274GN
£1.234
Each (In a Pack of 5)
Units
- Off Lineer - - - - - - 11W - Surface Mount PDIP SMD 7 +150 °C
RS Stock No. 898-6965
Mfr. Part No.BTS442E2E3062ABUMA1
BrandInfineon
£5.48
Each (In a Pack of 2)
Units
High Side High Side Switch 35mΩ - 42 V 21A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 165-8024
Mfr. Part No.BTS442E2E3062ABUMA1
BrandInfineon
£2.45
Each (On a Reel of 1000)
Units
High Side High Side Switch 35mΩ - 42 V 21A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 911-1017
Mfr. Part No.BSP452HUMA1
BrandInfineon
£0.705
Each (On a Reel of 4000)
Units
- - - - - - - - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 166-0850
Mfr. Part No.BTS410E2E3062ABUMA1
BrandInfineon
£1.60
Each (On a Reel of 1000)
Units
High Side High Side Power Switch 440mΩ - 42 V 1.8A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 110-9104
Mfr. Part No.BTS410E2E3062ABUMA1
BrandInfineon
£2.81
Each (In a Pack of 5)
Units
High Side High Side Power Switch 440mΩ - 42 V 1.8A 1 - - - Surface Mount TO-263 5 +150 °C
RS Stock No. 808-8966
Mfr. Part No.FPF2700MX
£1.968
Each (In a Pack of 5)
Units
- - - - 36 V 2A 1 1 - - Surface Mount SOIC 8 +125 °C
RS Stock No. 124-1412
Mfr. Part No.FPF2700MX
£0.868
Each (On a Reel of 2500)
Units
- - - - 36 V 2A 1 1 - - Surface Mount SOIC 8 +125 °C
RS Stock No. 168-7848
Mfr. Part No.VNP35N07-E
£2.887
Each (In a Tube of 50)
Units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 35A - - - - Through Hole TO-220 3 -
Related Products
The eco SWITCH NCP45520, NCP45521 series of load ...
Description:
The eco SWITCH NCP45520, NCP45521 series of load management devices provide a component and area-reducing solution for efficient power domain switching with inrush current limit via soft start. In addition to integrated control functionality with ultra low on-resistance these devices offer additional system safeguards and monitoring via fault protection and ...
The power switch for expansion module is a ...
Description:
The power switch for expansion module is a power management switch having one circuit of N-channel Power MOS FET. The switch realizes 50m O(Typ.) ON resistance. The switch turns on smoothly by the built-in charge pump, therefore, it is possible to reduce inrush current at switch on. And soft start ...
BD2242G and BD2243G are low on-resistance N-channel MOSFET ...
Description:
BD2242G and BD2243G are low on-resistance N-channel MOSFET high-side power switches, optimized for Universal Serial Bus (USB) applications.BD2242G and BD2243G are equipped with the function of over-current detection, thermal shutdown, under-voltage lockout and soft-start. Moreover, the range of Current limit threshold can be adjusted from 200mA to 1.7A by changing ...
BD82041FVJ is a Single Channel High Side Switch ...
Description:
BD82041FVJ is a Single Channel High Side Switch IC employing N-channel power MOSFET with low on resistance and low supply current for the power supply line of universal serial bus (USB). This IC has a built-in over current detection circuit, thermal shutdown circuit, under voltage lockout and soft start circuits. ...