5.5 V, 55 mOhm load switch with precision adjustable current limit

The NPS4053 is a 5.5 V, 55 mΩ load switch with precision adjustable current limit from 110 mA to 2.5 A.

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.

Features and benefits

  • Input operating voltage range (VIN): 2.5 V to 5.5 V

  • Maximum continuous current (IMAX): 2 A

  • ON resistance (RDS(on)):

    • VIN = 5.5 V: 55 mΩ (typical)

    • VIN = 3.6 V: 65 mΩ (typical)

    • VIN = 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


  • USB ports/hubs, laptops, docking station and desktops

  • Set top box

  • HDTV

  • Optical socket protection

  • Current limiting circuits

Note: Connect at least 120 µF capacitor at output for USB port application, other applications except USB choose output capacitor according to actual transient requirements.

Figure 1. Typical application circuit


Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
Active s3 SOT457


Part number Description Type Quick links Shop link
The NPS4053 evaluation board is a specialized PCB designed for the Nexperia load switch family. The PCB features test points for GND, VIN, VOUT, FLG and EN, which allow for convenient connection of oscilloscope probes. Designed with user-friendliness in mind, it streamlines the testing and analysis of the load switch's dynamic characteristics, such as RON and smooth turn-on measurements.
Evaluation board
Quick links
Shop link

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
NPS4053GV NPS4053GVH NPS4053GV rohs rhf rhf
Quality and reliability disclaimer


Documentation (12)

File name Title Type Date
NPS4053 5.5 V, 55 mOhm load switch with precision adjustable current limit Data sheet 2023-10-20
AN90045 Nexperia load switch ICs Application note 2023-08-08
Nexperia_document_guide_MiniLogic_PicoGate_201901 PicoGate leaded logic portfolio guide Brochure 2019-01-07
SOT457 3D model for products with SOT457 package Design support 2022-11-04
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSOP6_SOT457_mk plastic, surface-mounted package (TSOP6); 6 leads; 0.95 mm pitch; 2.9 mm x 1.5 mm x 1 mm body Marcom graphics 2017-01-28
SOT457 plastic, surface-mounted package (SC-74; TSOP6); 6 leads Package information 2023-03-03
SOT457_125 TSOP6; Reel pack for SMD, 7"; Q3/T4 product orientation Packing information 2020-04-21
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
MAR_SOT457 MAR_SOT457 Topmark Top marking 2013-06-03
UM90023 NEVB-NPS4053 load switch evaluation board User manual 2023-08-07
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08


If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.


File name Title Type Date
SOT457 3D model for products with SOT457 package Design support 2022-11-04

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
NPS4053GV NPS4053GVH 935691286125 Active SOT457_125 3,000 Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
NPS4053GV NPS4053GVH 935691286125 SOT457 Order product