5.5 V Load switch with precision current limit

The NPS4053 switch limits the output current to a constant current by using a constant-current mode when the output load exceeds the current limit threshold or shorted. An internal voltage comparator disables the load switch when the output voltage is higher than the input to protect devices on the input side of the switch. The FLG pin is an active low output to indicate overcurrent, over temperature and reverse voltage conditions.

Resources

• Landing page: Load switches
• Product page: NPS 4053 5.5 V, 55 mOhm load witch with precision adjustable current limit
• Datasheet NPS4053: 5.5 V, 55 mOhm load switch with precision adjustable current limit
• Datasheet NPS4053 Q100: 5.5 V, 55 mOhm load switch with precision adjustable current limit AEC Q100 Automotive
• Application note: Nexperia load switch IC
• User manual: NPS4053 EVB
• Packaging information: SOT8044-1 - plastic thermal enhanced very very thin small outline packages, no leads;6 terminals; 0.65 mm pitch; 2.0 mm x 2.0 mm x 0.75 mm body
• Leaflet: NPS4053
• Press announcement

 

Key features

• Input operating voltage range (V_IN): 2.5 V to 5.5 V
• Maximum continuous current (I_MAX): 2 A
• ON resistance (R_DS(on)):
  • V_IN = 5.5 V: 55 mΩ (typical)
  • V_IN = 3.6 V: 65 mΩ (typical)
  • V_IN = 2.5 V: 80 mΩ (typical)
     
• Adjustable current limit: 110 mA to 2.5 A
• ±6 % current limit accuracy at 1.2 A
• ILIM pin protection: can be shorted to ground or left floating
• Constant current during current limit
• No body diode when disabled (no current path from pin OUT to pin IN)
• Active reverse voltage protection
• Built in soft start
• UL 62368 recognition
• SOT457 (TSOP6) and SOT8044-1 (HWSON6) package option
• ESD protection:
  • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
  • CDM: ANSI/ESDA/JEDEC JS-002 class C2a exceeds 500 V
  • IEC 61000-4-2 contact discharge 8000 V
  • IEC 61000-4-2 air-gap discharge 15000 V
     
• Specified from -40 °C to +125 °C

 

Key applications

• Industrial PCs / Embedded PCs
• Headsets / Audio
• Measurement equipment
• Current limiting circuits

 

 

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