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 Stock No. 124-6468
Mfr. Part No.BD2242G-GTR
BrandROHM
£0.519
Each (In a Pack of 15)
Units
High Side High Side 89mΩ 1 5.5 V - - - - - Surface Mount SSOP 6 +85 °C
RS Stock No. 124-6490
Mfr. Part No.BD82065FVJ-E2
BrandROHM
£0.61
Each (In a Pack of 10)
Units
High Side High Side 70mΩ 1 5.5 V - - - - - Surface Mount TSSOP-B8J 8 +85 °C
RS Stock No. 124-6467
Mfr. Part No.BD2204GUL-E2
BrandROHM
£0.543
Each (In a Pack of 15)
Units
High Side High Side 120mΩ 2 4.5 V - - - - - Surface Mount VCSP50L1 6 +85 °C
RS Stock No. 178-5823
Mfr. Part No.BD6522F-E2
BrandROHM
£2.818
Each (In a Pack of 5)
Units
- - - - 5.5 V 110µA 2 1 - - Surface Mount SOP 8 +85 °C
RS Stock No. 169-0426
Mfr. Part No.BD6510F-E2
BrandROHM
£1.025
Each (On a Reel of 2500)
Units
High Side USB Power 100mΩ - - 2A 4 - - - Surface Mount SOP 8 -
RS Stock No. 700-0735
Mfr. Part No.BD6510F-E2
BrandROHM
£2.30
Each (In a Pack of 2)
Units
High Side USB Power 100mΩ - - 2A 4 - - - Surface Mount SOP 8 -
RS Stock No. 128-8867
Mfr. Part No.BD2051AFJ-E2
BrandROHM
£1.518
Each (In a Pack of 5)
Units
High Side Current Limit 100mΩ - 5.5 V 500mA 3 - - - Surface Mount SOP-J 8 +85 °C
RS Stock No. 171-2154
Mfr. Part No.BD22641G-MTR
BrandROHM
£0.937
Each (In a Pack of 10)
Units
- - - - 5.5 V 0.76A 1 1 - - Surface Mount SSOP 5 +105 °C
RS Stock No. 188-7041
Mfr. Part No.BD82044FVJ-GE2
BrandROHM
£0.478
Each (In a Pack of 25)
Units
High Side High Side 105mΩ 1 5.5 V 150µA - - 0.58W - Surface Mount TSSOP-BJ 8 +85 °C
RS Stock No. 184-8260
Mfr. Part No.BD8LB600FS-CE2
BrandROHM
£3.15
Each
Units
Low Side Low Side Switch 1.4Ω 8 5.5 V 5mA - - 1W - Surface Mount SSOP 24 +150 °C
RS Stock No. 128-8866
Mfr. Part No.BD11600NUX-E2
BrandROHM
£0.644
Each (In a Pack of 10)
Units
- USB - 5.5 V 40µA 1 - - - Surface Mount VSON 10 +85 °C
RS Stock No. 184-5253
Mfr. Part No.BD2246G-GTR
BrandROHM
£0.827
Each (In a Pack of 10)
Units
High Side High Side Switch 180mΩ 1 5.5 V 160µA - - - - Surface Mount SSOP 5 +85 °C
RS Stock No. 188-7045
Mfr. Part No.BD82042FVJ-GE2
BrandROHM
£0.478
Each (In a Pack of 25)
Units
High Side High Side 98mΩ 1 5.5 V 150µA - - 0.58W - Surface Mount TSSOP-BJ 8 +85 °C
RS Stock No. 171-5491
Mfr. Part No.BM63764S-VA
BrandROHM
£16.97
Each
Units
- High Speed - - 600 V 15A 4 - - - Through Hole HSDIP 25 +125 °C
RS Stock No. 184-8286
Mfr. Part No.BM2LB300FJ-CE2
BrandROHM
£1.506
Each (In a Pack of 5)
Units
Low Side Low Side Switch 840mΩ 2 5.5 V 2.7A - - - - Surface Mount SOP 8 +150 °C
RS Stock No. 184-8296
Mfr. Part No.BM2LC105FJ-CE2
BrandROHM
£1.426
Each (In a Pack of 5)
Units
Low Side Low Side Switch 315mΩ 2 5.5 V 6A - - - - Surface Mount SOP 8 +150 °C
RS Stock No. 171-2126
Mfr. Part No.BD2206G-TR
BrandROHM
£1.018
Each (In a Pack of 10)
Units
High Side High Side Switch 200mΩ 1 3.6 V 90µA - - - - Surface Mount SSOP 5 +85 °C
RS Stock No. 188-7048
Mfr. Part No.BD82045FVJ-GE2
BrandROHM
£0.478
Each (In a Pack of 25)
Units
High Side High Side 105mΩ 1 5.5 V 150µA - - 0.58W - Surface Mount TSSOP-BJ 8 +85 °C
RS Stock No. 128-8868
Mfr. Part No.BD2065AFJ-E2
BrandROHM
£1.518
Each (In a Pack of 5)
Units
High Side Current Limit 100mΩ - 5.5 V 1A 3 - - - Surface Mount SOP-J 8 +85 °C
RS Stock No. 171-2116
Mfr. Part No.BD6520F-E2
BrandROHM
£2.554
Each (In a Pack of 5)
Units
Low Side Low Side Switch 85mΩ 1 5.5 V 220µA - - - - Surface Mount SOP 8 +85 °C