Pololu 5V, 300mA Step-Down Spannungsregler D24V3F5

Item number: PO2098

GTIN: 4060137016189

SKU: 2098

Country of origin: US

UPC: 802236460

TARIC-Code: 90328900900

The compact (0.4" × 0.5") D24V3F5 switching step-down (or buck) voltage regulator takes an input voltage between 7 V and 42 V and efficiently reduces it to 5 V while allowing for a maximum output current of 300 mA. The pins have a 0.1" spacing, making this board compatible with standard solderless breadboards and perfboards.

Category: Step-Down Voltage Regulators


4,41 €

including 19% VAT.,

Available now!

Shipping time: 1 - 2 workdays



Description

Note: We recommend our newer 600 mA D36V6Fx family (PO3791 - PO3799) of step-down voltage regulators over this product. They offer a wider 4 V to 50 V operating voltage range and lower quiescent current, and they can generally be used as drop-in replacements for this product (they use the same PCB, just populated with different parts). Please also consider our 500 mA D24V5Fx (PO2840 - PO2847) and 1 A D24V10Fx (PO2830 - PO2834) families for synchronous alternatives that offer similar functionality with much lower dropout voltages and higher efficiencies at light loads. All of these newer families also have more output voltage options available.

Overview

These buck (step-down) voltage regulators generate lower output voltages from input voltages as high as 42 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 90%, which is much more efficient than linear voltage regulators, especially when the difference between the input and output voltage is large.

The regulator has short-circuit protection, and thermal shutdown prevents damage from overheating. The board does not have reverse-voltage protection.

Features

  • Input voltage: [output voltage + dropout voltage] to 42 V (see below for more information on dropout voltage)
  • Fixed 3.3 V, 5 V, 9 V, or 12 V output (depending on regulator version) with 4% accuracy
  • Maximum output current: 300 mA or 600 mA (depending on regulator version)
  • 1.25 MHz switching frequency
  • 2 mA typical no-load quiescent current (20 µA typical quiescent current with SHDN= LOW)
  • Integrated over-temperature and over-current shutoff
  • Small size: 0.5? × 0.4? × 0.1? (13 mm × 10 mm × 3 mm)

Dimensions

  • Size: 0.4? × 0.5? × 0.1?1
  • Weight: 0.5 g1

General specifications

  • Minimum operating voltage: 6 V2
  • Maximum operating voltage: 42 V
  • Maximum output current: 300 mA
  • Output voltage: 5 V
  • Reverse voltage protection?: N
  • Maximum quiescent current: 2 mA3

Identifying markings

  • PCB dev codes: reg04b
  • Other PCB markings: 0J7034

Notes:

  1. Without included optional headers.
  2. For small loads; input voltage must be at least 6.5 V to get the full 300 output.
  3. While enabled (SHDN = HIGH) with no load. Current draw is approximately 20 µA when SHDN = LOW.

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