Pololu 5V, 300mA Step-Down Spannungsregler D24V3F5

Pololu 5V, 300mA Step-Down Spannungsregler D24V3F5

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SKU: PO2098
GTIN: 4060137016189
Category: Step-Down
Manufacturers: Pololu
MPN: 2098
Storage Tiers: Maintain

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:

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

Storage Tiers:	Tier3 Maintain
Output Voltage:	5V
Output Current max.:	300mA
Operating Voltage max.:	42V
Operating Voltage min.:	6V
Regulator-Function:	Step-Down
Quiescent Current max.:	2mA
Output-Type:	fixed
Shipping weight:	0,01 kg
Item weight:	0,00 kg
Dimensions ( Length × Width × Height ):	1,10 × 1,30 × 0,30 cm