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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제품설명 단가 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 제품 번호 747-0992
제조사 부품 번호NCP380HSNAJAAT1G
제조사onsemi
₩1,353.15
Each (In a Pack of 5)
수량
- - - - 5.5 V 2.1A 2 2 - - Surface Mount TSOP 5 +125 °C
RS 제품 번호 146-5679
제조사 부품 번호TNY279PN
₩2,253.70
Each (In a Tube of 50)
수량
- Off Lineer 6.7Ω - - 2250mA 1 - 25W Over-Temperature Through Hole DIPC 8 +150 °C
RS 제품 번호 146-5693
제조사 부품 번호TNY280PN
₩2,597.80
Each (In a Tube of 50)
수량
- Off Lineer 4.5Ω - - 2550mA 1 - 28.5W Over-Temperature Through Hole DIPC 8 +150 °C
RS 제품 번호 162-8784
제조사 부품 번호TPS2561DRCT
₩1,658.50
Each (On a Reel of 250)
수량
- Distribution 70mΩ - 6.5 V 2.5A 2 - 2.403W - Surface Mount SON 10 +85 °C
RS 제품 번호 825-6765
제조사 부품 번호TPS2561DRCT
₩2,520.30
Each (In a Pack of 5)
수량
- Distribution 70mΩ - 6.5 V 2.5A 2 - 2.403W - Surface Mount SON 10 +85 °C
RS 제품 번호 146-5630
제조사 부품 번호LNK364PN
₩1,283.40
Each (In a Tube of 50)
수량
- Off Lineer 45Ω - - 750mA 1 - 6W Short Circuit Through Hole DIPB 8 +150 °C
RS 제품 번호 146-5643
제조사 부품 번호TNY276PN
₩1,565.50
Each (In a Tube of 50)
수량
- Off Lineer 24Ω - - 1350mA 1 - 15W Over-Temperature Through Hole DIPC 8 +150 °C
RS 제품 번호 123-5392
제조사 부품 번호LNK605DG
₩2,300.20
Each (In a Pack of 5)
수량
- - - - - - - - - - Surface Mount SOIC 7 +150 °C
RS 제품 번호 146-5632
제조사 부품 번호TNY274PN
₩1,408.95
Each (In a Tube of 50)
수량
- Off Lineer 48Ω - - 750mA 1 - 8.5W Over-Temperature Through Hole DIPC 8 +150 °C
RS 제품 번호 146-5616
제조사 부품 번호LNK562PN
₩1,033.85
Each (In a Tube of 50)
수량
- Off Lineer 88Ω - - 375mA 1 - 1.9W Over-Temperature Through Hole DIPB 8 +150 °C
RS 제품 번호 124-5360
제조사 부품 번호NCP45520IMNTWG-H
제조사onsemi
₩849.40
Each (On a Reel of 3000)
수량
- Controlled Load 22.5mΩ - 5.5 V - 1 - 2.5W - Surface Mount DFN 8 +85 °C
RS 제품 번호 807-6058
제조사 부품 번호FSL116HR
제조사onsemi
₩1,706.55
Each (In a Pack of 10)
수량
- Integrated PWM Controller 10Ω - 265 V 1A 1 - 14W - Through Hole PDIP 8 +105 °C
RS 제품 번호 821-5294
제조사 부품 번호NCP45520IMNTWG-H
제조사onsemi
₩1,720.50
Each (In a Pack of 20)
수량
- Controlled Load 22.5mΩ - 5.5 V - 1 - 2.5W - Surface Mount DFN 8 +85 °C
RS 제품 번호 146-5722
제조사 부품 번호LNK306DN
₩1,782.50
Each (In a Tube of 100)
수량
Low Side Off Lineer 12.9Ω - - 360mA 1 - - Short Circuit Surface Mount SOC 8 +150 °C
RS 제품 번호 921-5150
제조사 부품 번호TPS22945DCKR
₩961.00
Each (On a Reel of 3000)
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- - - - 5.5 V 0.15A 1 - - - Surface Mount SC-70 5 +85 °C
RS 제품 번호 709-9167
제조사 부품 번호TPS22945DCKR
₩1,926.65
Each (In a Pack of 5)
수량
- - - - 5.5 V 0.15A 1 - - - Surface Mount SC-70 5 +85 °C
RS 제품 번호 825-9143
제조사 부품 번호BTS724GXUMA1
제조사Infineon
₩7,678.70
Each (In a Pack of 5)
수량
High Side High Side Switch 180mΩ - 40 V 3.3A 4 - - - Surface Mount DSO 20 +150 °C
RS 제품 번호 145-4618
제조사 부품 번호FSL116HR
제조사onsemi
₩1,627.50
Each (In a Tube of 50)
수량
- Integrated PWM Controller 10Ω - 265 V 1A 1 - 14W - Through Hole PDIP 8 +105 °C
RS 제품 번호 146-5641
제조사 부품 번호TNY275GN
₩1,957.65
Each (In a Tube of 50)
수량
- Off Lineer 33Ω - - 560mA 1 - 11.5W Over-Temperature Surface Mount SMDC 8 +150 °C
RS 제품 번호 146-5627
제조사 부품 번호LNK363PN
₩1,219.85
Each (In a Tube of 50)
수량
- Off Lineer 54Ω - - 750mA 1 - 4.7W Short Circuit Through Hole DIPB 8 +150 °C