Pololu Step-Down Voltage Regulator - 24V, 4A
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The Pololu D42V55F24 is a compact synchronous step-down (buck) switching regulator that takes input voltages from 24 V up to 60 V and delivers a tightly regulated 24 V output at up to 4 A. A step-down converter reduces a higher input voltage to a lower output voltage while increasing available current and doing so much more efficiently than a linear regulator; this means less heat and better energy use in high-difference applications.
The board supports a typical continuous output current that ranges from 2.5 A to 5 A, depending on input voltage and thermal conditions. Efficiency is high—around 90% to 95%, varying with load, input, and output voltage. It operates at approximately a 400 kHz switching frequency under heavy loads, with very low quiescent current at no load.
As with other D42V55Fx regulators, it includes input reverse-voltage protection, over-current protection, thermal shutdown, and soft-start to limit inrush current. The module measures 1" × 1" × ~0.355" (25.4 × 25.4 × 9 mm) and includes three mounting holes for #2 or M2 screws, along with six 0.1" grid-compatible connections (VIN, VOUT, GND, VRP, EN, PG) and duplicated power rails for easy prototyping.
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We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
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Cardiff
NSW, 2285
Australia
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