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. 162-7905
Mfr. Part No.TPS22929DDBVT
MYR1.91
Each (On a Reel of 250)
units
- Load Management 200mΩ - 5.5 V 1.8A 1 - 463mW - Surface Mount SOT-23 6 +85 °C
RS Stock No. 686-8518
Mfr. Part No.VNP10N07-E
MYR8.19
Each (In a Pack of 2)
units
- OMNIFET: Fully Autoprotected Power MOSFET - - 70 V 10A 1 - - - Through Hole TO-220 3 -
RS Stock No. 168-6835
Mfr. Part No.VN340SPTR-E
MYR18.999
Each (On a Reel of 600)
units
- - - - - - 4 - - - Surface Mount PowerSO 10 -
RS Stock No. 827-5265
Mfr. Part No.BSP75NHUMA1
BrandInfineon
MYR4.599
Each (In a Pack of 25)
units
Low Side Low Side Switch 550mΩ - 60 V 0.7A 1 - - - Surface Mount SOT-223 3 + Tab +150 °C
RS Stock No. 145-5456
Mfr. Part No.FSFR1800XSL
MYR11.077
Each (In a Tube of 19)
units
- - 0.95Ω - 400 V 7A 1 - 260W - Through Hole SIP 9 +135 °C
RS Stock No. 165-7147
Mfr. Part No.SI1869DH-T1-GE3
BrandVishay
MYR1.498
Each (On a Reel of 3000)
units
- - - - - - - - - - Surface Mount SC-70 6 +150 °C
RS Stock No. 747-0992
Mfr. Part No.NCP380HSNAJAAT1G
MYR3.634
Each (In a Pack of 5)
units
- - - - 5.5 V 2.1A 2 2 - - Surface Mount TSOP 5 +125 °C
RS Stock No. 900-9703
Mfr. Part No.TPD3S014DBVR
MYR4.642
Each (In a Pack of 5)
units
- Current Limit 130mΩ - 5.5 V - 1 - - - Surface Mount SOT-23 6 +85 °C
RS Stock No. 825-6765
Mfr. Part No.TPS2561DRCT
MYR9.292
Each (In a Pack of 5)
units
- Distribution 70mΩ - 6.5 V 2.5A 2 - 2.403W - Surface Mount SON 10 +85 °C
RS Stock No. 146-5635
Mfr. Part No.TNY274GN
MYR5.87
Each (In a Tube of 50)
units
- Off Lineer 48Ω - - 750mA 1 - 8.5W Over-Temperature Surface Mount SMDC 8 +150 °C
RS Stock No. 124-8741
Mfr. Part No.BTS724GXUMA1
BrandInfineon
MYR12.422
Each (On a Reel of 1000)
units
High Side High Side Switch 180mΩ - 40 V 3.3A 4 - - - Surface Mount DSO 20 +150 °C
RS Stock No. 162-9878
Mfr. Part No.TPD3S014DBVR
MYR2.457
Each (On a Reel of 3000)
units
- Current Limit 130mΩ - 5.5 V - 1 - - - Surface Mount SOT-23 6 +85 °C
RS Stock No. 812-0332
Mfr. Part No.TPS22929DDBVT
MYR2.94
Each (In a Pack of 25)
units
- Load Management 200mΩ - 5.5 V 1.8A 1 - 463mW - Surface Mount SOT-23 6 +85 °C
RS Stock No. 124-6467
Mfr. Part No.BD2204GUL-E2
BrandROHM
MYR2.719
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. 165-8274
Mfr. Part No.AUIPS7081STRL
BrandInfineon
MYR12.534
Each (On a Reel of 800)
units
High Side High Side Switch 130mΩ - 5.5 V 2.3A 1 - - - Surface Mount D2Pak 5 +150 °C
RS Stock No. 812-3097
Mfr. Part No.SI1869DH-T1-GE3
BrandVishay
MYR1.817
Each (In a Pack of 20)
units
- - - - - - - - - - Surface Mount SC-70 6 +150 °C
RS Stock No. 714-7894
Mfr. Part No.VNB14NV04-E
MYR9.42
Each (In a Pack of 2)
units
- - - - - - 1 - - - Surface Mount D2PAK 3 -
RS Stock No. 145-4639
Mfr. Part No.FSFA2100
MYR26.975
Each (In a Tube of 19)
units
- PWM Converter 0.38Ω - 400 V - 1 - 200W - Through Hole SIP 10 +130 °C
RS Stock No. 919-6668
Mfr. Part No.BTS5016SDAAUMA1
BrandInfineon
MYR6.143
Each (On a Reel of 2500)
units
High Side High Side Switch 42mΩ - 38 V 6.5A 2 - - - Surface Mount TO-252 5 +150 °C
RS Stock No. 880-5415
Mfr. Part No.STMPS2151STR
MYR2.11
Each (In a Pack of 25)
units
High Side MOSFET 160mΩ - 5.5 V 0.5A 1 - - - Surface Mount SOT-23 5 +125 °C