Pololu D42V55F12 12V 4.5A Step-Down Voltage Regulator

PololuSKU: RB-Pol-1754
Manufacturer #: 5577

Price  :
Sale price $31.95

Price includes Tariffs (in USA).  Shipping calculated at checkout.

Stock  :
In stock, 4 units

Description

  • Pololu D42V55F12 12V 4.5A Step-Down Voltage Regulator
  • Converts voltages up to 60V to stable 12V output
  • Supports 3A to 8A continuous output current
  • Offers high efficiency of 85% to 95%
  • Includes reverse-voltage and over-current protection
  • Features thermal shutdown and soft-start capability

The Pololu D42V55F12 12V 4.5A Step-Down Voltage Regulator is a high-efficiency synchronous buck regulator designed to convert higher input voltages, up to 60 V, into a stable 12 V output. This regulator is part of the D42V55Fx family, known for their efficiency in reducing voltage, particularly when there is a significant difference between input and output voltages. It is capable of supporting continuous output currents ranging from 3 A to 8 A, depending on the specific input and output conditions.

This device incorporates several protective features to ensure reliable operation. It includes input reverse voltage protection and over-current protection to safeguard against electrical faults. Additionally, a thermal shutdown feature is integrated to prevent damage from overheating, while a soft-start feature limits inrush current and gradually increases the output voltage during startup.

The regulator is designed with a typical efficiency range of 85% to 95%, making it suitable for applications requiring energy conservation. It operates at a switching frequency of approximately 400 kHz under heavy loads and has a low no-load quiescent current, enhancing its efficiency in various conditions. The regulator also offers an optional enable input for low-power states and a power-good output for sequencing, fault detection, and voltage monitoring.

Note: Ensure proper handling and installation to avoid electrical hazards.

Six connections arranged on a 0.1″ grid for compatibility with solderless breadboards, 0.1″ male headers, and 0.1″ female headers.

  • 25.4 x 25.4 x 9 mm (1 x 0.355")

Bottom View of 12V, 4.5A Step-Down Voltage Regulator D42V55F12 - Dimensions

  • Input voltage: 12 V to 60 V (minimum input subject to dropout voltage considerations)
  • Output voltage: 12 V with 3% accuracy
  • Typical maximum continuous output current: 3.5 A to 6.5 A
  • Typical efficiency: 85% to 95%
  • Switching frequency: approximately 400 kHz under heavy loads
  • Typical no-load quiescent current: less than 0.2 mA
  • Optional enable input for low-power state
  • Power-good output for sequencing, fault detection, and voltage monitoring
  • Integrated reverse-voltage protection, over-current protection, and over-temperature shutoff
  • Three 0.086″ mounting holes for #2 or M2 screws

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WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.

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