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 124-8774
製造零件編號BTS141TCBUMA1
BrandInfineon
TWD63.20
個 (在毎卷:1000)
單位
Low Side Low Side Switch 30mΩ - 60 V 12A 1 - - - Surface Mount TO-263 3 +150 °C
RS庫存編號 753-3096
製造零件編號ISP772TFUMA1
BrandInfineon
TWD59.50
/個 (每包:2個)
單位
High Side High Side Switch 120mΩ - 16 V 3.1A 1 - - - Surface Mount SOIC 8 +85 °C
RS庫存編號 124-1411
製造零件編號FPF2700MPX
TWD40.30
個 (在毎卷:3000)
單位
- - - - 36 V 2A 1 1 - - Surface Mount MLP 8 +125 °C
RS庫存編號 145-8901
製造零件編號VN751STR
TWD35.20
個 (在毎卷:2500)
單位
High Side Driver 180mΩ - 36 V 2.5A 1 - - - Surface Mount SOIC 8 +150 °C
RS庫存編號 906-2886
製造零件編號ITS41K0SMENHUMA1
BrandInfineon
TWD34.20
/個 (每包:20個)
單位
High Side High Side NMOS - 60 V - 1 - - - Surface Mount SOT-223 3 + Tab +125 °C
RS庫存編號 827-5224
製造零件編號BTS3207NHUMA1
BrandInfineon
TWD32.20
/個 (每包:25個)
單位
Low Side Low Side Switch 500mΩ - 42 V 0.64A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS庫存編號 919-6611
製造零件編號BTS500551TMAATMA1
BrandInfineon
TWD101.30
個 (在毎卷:1000)
單位
High Side High Side Switch 17mΩ - 34 V 70A 1 - - - Surface Mount TO-220 7 +150 °C
RS庫存編號 103-1077
製造零件編號AVS12CB
TWD79.00
毎管:50 個
單位
- - - - - - - - - - Through Hole TO-220AB 3 +70 °C
RS庫存編號 808-8963
製造零件編號FPF2700MPX
TWD94.40
/個 (每包:5個)
單位
- - - - 36 V 2A 1 1 - - Surface Mount MLP 8 +125 °C
RS庫存編號 166-0814
製造零件編號BTS50301EJAXUMA1
BrandInfineon
TWD24.90
個 (在毎卷:2500)
單位
High Side High Side Power Switch 60mΩ - 28 V 5A 1 - - - Surface Mount DSO-8-43 8 +150 °C
RS庫存編號 146-0314
製造零件編號MIC2506YM
BrandMicrochip
TWD100.80
毎管:95 個
單位
High Side USB Power 75mΩ - 7.5 V 2A 4 - - - Surface Mount SOIC 8 +85 °C
RS庫存編號 922-7891
製造零件編號BSP75NTA
TWD13.70
個 (在毎卷:1000)
單位
Low Side Low Side Switch 0.52Ω - 60 V 1.1A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS庫存編號 146-5697
製造零件編號TOP256EN
TWD60.40
毎管:48 個
單位
- Off Lineer 4.75Ω - - 4.08A 1 - 86W Over-Temperature Surface Mount ESIPC 7 +150 °C
RS庫存編號 880-5535
製造零件編號VN751STR
TWD72.40
/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 168-8915
製造零件編號VNS3NV04DP-E
TWD40.70
毎管:100 個
單位
- OMNIFET: Fully Autoprotected Power MOSFET - - 40 V 3.5A - - - - Surface Mount SOIC 8 +150 °C
RS庫存編號 166-3503
製造零件編號FSUSB74MPX
TWD18.60
個 (在毎卷:3000)
單位
- USB - 4.4 V - 1 - - - Surface Mount MLP 16 +85 °C
RS庫存編號 110-7753
製造零件編號BTS4880RAUMA1
BrandInfineon
TWD265.00
/個 (每包:2個)
單位
High Side High Side Power Switch 320mΩ - 45 V - 8 - - - Surface Mount DSO 36 +125 °C
RS庫存編號 751-2982
製造零件編號AP2280-1WG-7
TWD16.50
/個 (每包:25個)
單位
High Side High Side Switch 250mΩ - 6 V 2A 1 - - - Surface Mount SOT-25 5 +85 °C
RS庫存編號 110-7777
製造零件編號BTS50301EJAXUMA1
BrandInfineon
TWD43.10
/個 (每包:10個)
單位
High Side High Side Power Switch 60mΩ - 28 V 5A 1 - - - Surface Mount DSO-8-43 8 +150 °C
RS庫存編號 753-2872
製造零件編號BTS3410GXUMA1
BrandInfineon
TWD50.00
/個 (每包:5個)
單位
Low Side Low Side Switch 480mΩ - 10 V 1.65A 4 - - - Surface Mount SOIC 8 +150 °C