Pololu 5V, 5A Step-Down Voltage Regulator D24V50F5

Pololu item #: 2851 378 in stock

Price break Unit price (US$)
1 14.95
5 13.45
25 11.95
100 10.45


backorders allowed

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A. Typical efficiencies of 85% to 95% make this regulator well suited for high-power applications like powering motors or servos. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

 Description Specs (10) Pictures (10) Resources (1) FAQs (0) On the blog (1) 

Dimensions

Size: 0.7″ × 0.8″ × 0.35″1
Weight: 3.0 g1

General specifications

Minimum operating voltage: 6 V2
Maximum operating voltage: 38 V
Continuous output current: 5 A3
Output voltage: 5 V
Reverse voltage protection?: Y
Maximum quiescent current: 0.8 mA4

Identifying markings

PCB dev codes: reg15d
Other PCB markings: 0J8511

Notes:

1
Without included optional headers.
2
For small loads; this voltage rises approximately linearly up to around 6.2 V at 5 A output.
3
Typical. Actual continuous output current limited by thermal dissipation.
4
Typical worst case (i.e. with VIN close to 6V). The ENABLE pin can be used to reduce the quiescent current to a few hundred microamps.

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