Pololu 5V, 2.5A Step-Down Voltage Regulator D24V22F5

Pololu item #: 2858 667 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free add-on shipping in USA 
This item could qualify for free shipping Free shipping in USA over $40 

Price break Unit price (US$)
1 8.95
5 8.06
25 7.16
100 6.26


backorders allowed

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.7″ yet delivers typical continuous output currents between 1.9 A and 2.5 A, depending on the input voltage, which makes this regulator well suited for powering moderate loads like sensors or small motors. An optional enable input can be used to put the regulator in a low-power state with a current draw of 5 µA to 10 µA per volt on VIN. The regulator also features reverse voltage protection and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Alternatives available with variations in these parameter(s): output voltage Select variant…

 Description Specs (10) Pictures (8) Resources (3) FAQs (0) On the blog (2) 

Dimensions

Size: 0.7″ × 0.7″ × 0.31″1
Weight: 2.3 g1

General specifications

Minimum operating voltage: 5.3 V2
Maximum operating voltage: 36 V
Continuous output current: 2.2 A3
Output voltage: 5 V
Reverse voltage protection?: Y
Maximum quiescent current: 3 mA4

Identifying markings

PCB dev codes: reg19a
Other PCB markings: 0J9251

Notes:

1
Without included optional headers.
2
For small loads; this voltage rises approximately linearly up to around 5.8 V at 2.5 A output.
3
Typical continuous output current at 24 V in. Actual achievable continuous output current is a function of input voltage and is limited by thermal dissipation. See the output current graph under the description tab for more information.
4
Typical worst case; quiescent current is typically around 1 mA for most of the operating range. The ENABLE pin can be used to reduce the quiescent current to less than 10 μA per volt on VIN.

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