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 166-3497
製造零件編號FAN4147SX
TWD11.90
個 (在毎卷:3000)
單位
- - - - 2.5 V 0.5mA 1 - - - Surface Mount SOT-23 6 +85 °C
全新
RS庫存編號 196-3976
製造零件編號Si83401AAA-IF
TWD190.50
/個 (每包:2個)
單位
- - - - - - - - - - - - - -
RS庫存編號 165-8453
製造零件編號AP2553AW6-7
TWD6.50
個 (在毎卷:3000)
單位
High Side - 135mΩ - 5.5 V 2542mA 1 - - - Surface Mount SOT-26 6 +85 °C
RS庫存編號 146-4807
製造零件編號AP22814BM8-13
TWD18.60
/個 (每包:10個)
單位
High Side - 65mΩ - 2.4 V 3.8A 2 - - - Surface Mount MSOP 8 +85 °C
RS庫存編號 166-0806
製造零件編號BTS50902EKAXUMA1
BrandInfineon
TWD28.70
個 (在毎卷:2500)
單位
High Side High Side Power Switch 180mΩ - 41 V 3.5A 2 - - - Surface Mount DSO-14-40 14 +150 °C
RS庫存編號 145-5326
製造零件編號FSFR1800HSL
TWD87.20
毎管:19 個
單位
- Integrated 0.95Ω - 25 V 7A 2 - 260W - Through Hole SIP 10 +130 °C
RS庫存編號 196-3997
製造零件編號Si83418ADA-IF
TWD157.40
毎管:46 個
單位
Low Side Isolated Smart - - 5.5 V, 32 V - 8 - 4W - Surface Mount DFN 32 +125 °C
RS庫存編號 921-0442
製造零件編號AP2191DWG-7
TWD14.40
/個 (每包:20個)
單位
High Side - 115mΩ - 5.5 V 2.6A 1 - - - Surface Mount SOT-25 5 +85 °C
RS庫存編號 898-6867
製造零件編號BTS6133DAUMA1
BrandInfineon
TWD85.80
/個 (每包:4個)
單位
High Side High Side Switch 26mΩ - 38 V 8A 1 - - - Surface Mount TO-252 5 +150 °C
RS庫存編號 862-8906
製造零件編號FSA832L10X
TWD21.70
/個 (每包:25個)
單位
- Isolation - 6 V - 1 - - - Surface Mount MicroPak 10 +85 °C
RS庫存編號 177-2883
製造零件編號MIC2009A-1YM6-TR
BrandMicrochip
TWD11.50
個 (在毎卷:3000)
單位
High Side Adjustable Current-Limit 275mΩ 1 5.5 V 300µA - - - - Surface Mount SOT-23 6 +85 °C
RS庫存編號 165-7225
製造零件編號SIP32408DNP-T1-GE4
BrandVishay
TWD6.00
個 (在毎卷:3000)
單位
- Controlled Load 52mΩ - 5.5 V - 1 - 735mW - Surface Mount TDFN 4 +125 °C
RS庫存編號 205-2401
製造零件編號FPF2260ATMX
TWD18.70
/個 (每包:25個)
單位
Low Side Low Side - 1 23 V 180µA - - - - - X2QFN12 12 -
RS庫存編號 791-6292
製造零件編號NUD3160LT1G
TWD12.10
/個 (每包:20個)
單位
- - - - 60 V - 1 - - - Surface Mount SOT-23 3 +125 °C
RS庫存編號 751-2967
製造零件編號AP2161WG-7
TWD11.60
Each (On a Tape of 10)
單位
High Side High Side Switch 115mΩ - 5.5 V 1A 1 - - - Surface Mount SOT-25 5 +85 °C
RS庫存編號 919-6686
製造零件編號ISP742RIFUMA1
BrandInfineon
TWD21.70
個 (在毎卷:2500)
單位
High Side High Side Switch 700mΩ - 16 V 0.4A 1 - - - Surface Mount SOIC 8 +85 °C
RS庫存編號 747-0998
製造零件編號NCP380HSN10AAT1G
TWD23.60
Each (On a Tape of 5)
單位
- - - - 5.5 V 1A 2 2 - - Surface Mount TSOP 5 +125 °C
RS庫存編號 168-6835
製造零件編號VN340SPTR-E
TWD120.80
個 (在毎卷:600)
單位
- - - - - - 4 - - - Surface Mount PowerSO 10 -
RS庫存編號 171-2106
製造零件編號BD2062FJ-E2
BrandROHM
TWD53.20
/個 (每包:5個)
單位
High Side High Side Switch 125mΩ 2 5.5 V 180µA - - - - Surface Mount SOP 8 +85 °C
RS庫存編號 170-2282
製造零件編號AUIPS7091GTR
BrandInfineon
TWD42.30
個 (在毎卷:2500)
單位
High Side High Side Switch 130mΩ - 5.5 V 1.5A 1 - 1.25W - Surface Mount SOIC 8 +150 °C