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Current Limited Switch

Description

The current limited P-channel MOSFET power switch designed for high-side load switching applications. This switch operates with inputs ranging from 2.5V to 5.5V, making it ideal for both 3.3V and 5V systems. An integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of regulation. The power switch is also protected from thermal overload which limits power dissipation and junction temperatures. The power switch is available in Pb-free packages and is specified over the -40°C to +85°C ambient temperature range.

Product Features:
  • Programmable Current Limit & Fixed Current Limit, Very Low Quiescent Current, Quick Short-Circuit Response, Under-Voltage Lockout & Thermal Shutdown, SOT-23 package
Applications:
  • 3G Wireless Cards, Smart Phones and PDAs, LCD TVs and Monitors, Set-Top-Boxes, MP3/MP4, Printers, Portable Game Players, USB Keyboards, USB Hard Disk Drives, USB Memory Drives, USB Hubs


  • Vin:Input Voltage Range
  • Vout:Output Voltage Range
  • ISW:Maximum Continuous Current of switch IN-OUT, Ilimit:Current Limit
  • Rds(on):On-Resistance of Switch IN-OUT

Current Limited Switch

Part No Working Current(mA) Enable Pin Vin Range(V) Current Limit(mA) Precision IQ(uA) Rdson(mΩ) FLT OVP Package Data sheet
WP250052T3 50 No 2.5-5.2 75 10% 100 100 No Yes SOT23-3
WP250052T3-B 50 No 2.5-5.2 75 25% 100 100 No Yes SOT23-3
WP250152T3 150 No 2.5-5.2 200 10% 100 100 No Yes SOT23-3
WP250152T3 150 No 2.5-5.2 200 10% 100 100 No Yes SOT23-3
WP250152T3-B 150 No 2.5-5.2 200 25% 100 100 No Yes SOT23-3
WP25022T3 200 No 2.5-5.2 300 10% 100 100 No Yes SOT23-3
WP25022T3-B 200 No 2.5-5.2 300 25% 100 100 No Yes SOT23-3
WP250252T3 250 No 2.5-5.2 400 10% 100 100 No Yes SOT23-3
WP250252T3-B 250 No 2.5-5.2 400 25% 100 100 No Yes SOT23-3
WP250652T3 650 No 2.5-5.5 1000 10% 28 70 No No SOT23-3
WP250652T3-B 650 No 2.5-5.5 1000 25% 28 70 No No SOT23-3
WP25102T3 1000 No 2.5-5.5 1500 10% 28 70 No No SOT23-3
WP25102T3-B 1000 No 2.5-5.5 1500 25% 28 70 No No SOT23-3
WP25142T3 1400 No 2.5-5.5 2000 10% 28 70 No No SOT23-3
WP25142T3-B 1400 No 2.5-5.5 2000 25% 28 70 No No SOT23-3
WP250051T5 50 Yes 2.5-5.2 75 10% 100 100 Yes Yes SOT23-5
WP250051T5-B 50 Yes 2.5-5.2 75 25% 100 100 Yes Yes SOT23-5
WP250151T5 150 Yes 2.5-5.2 200 10% 100 100 Yes Yes SOT23-5
WP250151T5-B 150 Yes 2.5-5.2 200 25% 100 100 Yes Yes SOT23-5
WP25021T5 200 Yes 2.5-5.2 300 10% 100 100 Yes Yes SOT23-5
WP25021T5-B 200 Yes 2.5-5.2 300 25% 100 100 Yes Yes SOT23-5
WP250251T5 250 Yes 2.5-5.2 400 10% 100 100 Yes Yes SOT23-5
WP250251T5-B 250 Yes 2.5-5.2 400 25% 100 100 Yes Yes SOT23-5
WP250651T5 650 Yes 2.5-5.5 1000 10% 28 70 Yes No SOT23-5
WP250651T5-B 650 Yes 2.5-5.5 1000 25% 28 70 Yes No SOT23-5
WP25101T5 1000 Yes 2.5-5.5 1500 10% 28 70 Yes No SOT23-5
WP25101T5-B 1000 Yes 2.5-5.5 1500 25% 28 70 Yes No SOT23-5
WP25141T5 1400 Yes 2.5-5.5 2000 10% 28 70 Yes No SOT23-5
WP25141T5-B 1400 Yes 2.5-5.5 2000 25% 28 70 Yes No SOT23-5
WP25P041T5 400mA Max,Adjustable Yes 2.5-5.2 75-400 Selectable 10%@400mA 100 100 No Yes SOT23-5
WP25P041T5-B 400mA Max,Adjustable Yes 2.5-5.2 75-400 Selectable 20%@400mA 100 100 No Yes SOT23-5
WP25P21T5 2000mA Max,Adjustable Yes 2.5-5.5 400-2000 Selectable 10%@1A 28 70 No No SOT23-5
WP25P21T5-B 2000mA Max,Adjustable Yes 2.5-5.5 400-2000 Selectable 20%@1A 28 70 No No SOT23-5
WP25P041T6 400mA Max,Adjustable Yes 2.5-5.2 75-400 Selectable 10%@400mA 100 100 Yes Yes SOT23-6
WP25P041T6-B 400mA Max,Adjustable Yes 2.5-5.2 75-400 Selectable 20%@400mA 100 100 Yes Yes SOT23-6
WP25P21T6 2000mA Max,Adjustable Yes 2.5-5.5 400-2000 Selectable 10%@1A 28 70 Yes No SOT23-6
WP25P21T6-B 2000mA Max,Adjustable Yes 2.5-5.5 400-2000 Selectable 20%@1A 28 70 Yes No SOT23-6