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庫存編號 793-1415
製造零件編號VNS3NV04DPTR-E
HK$18.806
/個 (每包:5個)
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 40 V 3.5A - - - - Surface Mount SOIC 8 -
RS庫存編號 714-1170
製造零件編號VN340SP-E
HK$50.06
單位
High Side High Side Solid State Relay 0.2Ω - 36 V 0.7A 4 - - - Surface Mount SOIC 10 +150 °C
RS庫存編號 168-6834
製造零件編號VN340SP-E
HK$45.71
毎管:50 個
單位
High Side Solid State Relay 0.2Ω - 36 V 0.7A 4 - - - Surface Mount SOIC 10 +150 °C
RS庫存編號 920-6547
製造零件編號VNS3NV04DPTR-E
HK$9.337
個 (在毎卷:2500)
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 40 V 3.5A - - - - Surface Mount SOIC 8 -
RS庫存編號 168-8914
製造零件編號VNB20N07-E
HK$24.822
毎管:50 個
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 20A - - - - Surface Mount D2PAK 3 -
RS庫存編號 110-6597
製造零件編號E-L9823013TR
HK$32.895
/個 (每包:2個)
單位
Low Side Low Side 1.5Ω - 50 V 0.5A 7 - - - Surface Mount SOIC 24 -
RS庫存編號 168-6477
製造零件編號L6375S
HK$26.175
毎管:100 個
單位
- - - - - - 1 - - - Surface Mount SOIC 8 +85 °C
RS庫存編號 880-5547
製造零件編號VND14NV04TR-E
HK$19.026
/個 (每包:5個)
單位
- - - - - - - - - - Surface Mount TO-252 3 -
RS庫存編號 203-3383
製造零件編號ISO8200BQTR
HK$34.503
個 (在毎卷:3000)
單位
- - - - 45 V 0.7A 8 - 0.12W - - TFQFPN 32 -
RS庫存編號 920-8947
製造零件編號L6376D
HK$64.601
毎管:31 個
單位
- - - - - 500mA 4 4 - - Surface Mount PowerSO 20 +85 °C
RS庫存編號 165-5294
製造零件編號VN5160STR-E
HK$6.489
個 (在毎卷:2500)
單位
- - - - - - - - - - - - - -
RS庫存編號 880-5406
製造零件編號STMPS2141STR
HK$4.505
/個 (每包:10個)
單位
High Side MOSFET 160mΩ - 5.5 V 0.5A 1 - - - Surface Mount SOT-23 5 +125 °C
RS庫存編號 809-1310
製造零件編號VNP35N07-E
HK$39.26
/個 (每包:2個)
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 35A - - - - Through Hole TO-220 3 -
RS庫存編號 165-8184
製造零件編號VN5050JTR-E
HK$8.652
個 (在毎卷:2500)
單位
High Side High Side 100mΩ - 36 V 19A 1 - - - Surface Mount PowerSSO 12 +150 °C
RS庫存編號 203-3434
製造零件編號STEC01PUR
HK$6.909
個 (在毎卷:3000)
單位
Low Side - - - 5 V 7A 2 - - - - VFQFPN 16 -
RS庫存編號 686-8518
製造零件編號VNP10N07-E
HK$18.87
/個 (每包:2個)
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 10A 1 - - - Through Hole TO-220 3 -
RS庫存編號 880-5535
製造零件編號VN751STR
HK$18.774
/個 (每包:5個)
單位
High Side Driver 180mΩ - 36 V 2.5A 1 - - - Surface Mount SOIC 8 +150 °C
RS庫存編號 189-2116
製造零件編號STMPS2141MTR
HK$4.956
/個 (每包:25個)
單位
High Side MOSFET 110mΩ - 5.5 V 12µA 1 - - - Surface Mount SO 8 +125 °C
RS庫存編號 877-3131
製造零件編號VND7NV04TR-E
HK$12.852
/個 (每包:10個)
單位
- - - - - - - - - - Surface Mount DPAK 3 +150 °C
RS庫存編號 165-5418
製造零件編號VN5016AJTR-E
HK$13.388
個 (在毎卷:2500)
單位
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