Bipolar transistors

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ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

NEX40400DDA

NEX40400DDA Production

4.5 V to 40 V, 600 mA, synchronous step-down converter

The NEX40400 is a high efficiency step-down converter with low operating quiescent current of typically 60 µA. It provides up to 600 mA output with current mode control for fast loop response.

The wide 4.5 V to 40 V input range is suitable for variety of the power step-down applications in industrial and automotive environments. 0.3 µA ultra-low shutdown supply current allows use in battery-powered applications.

High power conversion efficiency across a wide load range is achieved by folding down the switching frequency at light load condition reducing the switching losses.

Frequency foldback helps to prevent inductor current runaway during start-up and to allow operation in both high conversion ratio and low drop-out cases. Thermal shutdown provides reliable and robust operation.

The NEX40400 comes in a cost-effective 6 leads SOT8061-1 (TSOT23-6) plastic, surface-mounted package with 2.9 mm x 1.6 mm body dimensions.

  • Product details
  • Documentation
  • Support
  • Ordering
  • Interactive datasheet

Product details

Features and benefits

  • 4.5 V to 40 V wide input voltage range
  • 600 mA continuous output current
  • 60 µA standby, 0.3 µA shutdown current
  • 1% output voltage accuracy
  • 1.05 MHz and 2.1 MHz fixed switching frequency
  • Pulse Frequency Modulation (PFM) option for light load efficiency
  • Frequency foldback for high conversion ratio and low drop-out applications
  • Force PWM (FPWM) option for small output ripple
  • Spread spectrum for better EMI
  • Start-up with pre-biased output
  • Precision enable
  • Internal compensation
  • Short circuit protection with Hiccup mode
  • SOT8061-1 (TSOT23-6) 6 leads, plastic surface-mounted package

Target applications

  • Industrial distributed power systems
  • Grid infrastructure: Smart E-meter
  • Battery powered home appliances
  • White goods

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More information

Quality and reliability disclaimer

Support

Please contact us if you have any questions. If you are in need of design support, please fill in the technical support form, we will get back to you shortly.

Please visit our engineer exchange forum or contact us for further support.

Longevity

The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.

Sample

As a Nexperia customer you can order samples via our sales organization.

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. Check out the list of official distributors.

Interactive datasheet

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.

Interactive datasheet