5V Step-Up Voltage Regulator U3V40F5

Pololu item #: 4012
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 7.95
5 7.31
25 6.73
100 6.19

backorders allowed

This compact (0.6″×0.6″) switching step-up (or boost) voltage regulator efficiently generates 5 V from input voltages as low as 1.3 V and handles continuous input currents up to around 4 A. (Note: minimum start-up voltage is 2.7 V, but it operates down to 1.3 V after that.) The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

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

 Description Specs (9) Pictures (11) Resources (3) FAQs (0) On the blog (0) 


Size: 0.6″ × 0.6″ × 0.22″1
Weight: 1.5 g1

General specifications

Minimum operating voltage: 1.3 V2
Maximum operating voltage: 5 V
Maximum input current: 9.5 A3
Output voltage: 5 V
Reverse voltage protection?: N

Identifying markings

PCB dev codes: reg28a
Other PCB markings: 0J13554


Without included optional headers.
Note: the minimum startup voltage is 2.7 V, but the regulator can operate down to 1.3 V after startup.
Instantaneous. This is the rating for the switch, and regulator actively limits input current to this while boosting. Sustainable input current depends on input and output voltage and external conditions like ambient temperature and airflow.

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Related Categories

U3V40x Step-Up Voltage Regulators
Step-Up (Boost) Voltage Regulators
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Step-Up/Step-Down Voltage Regulators
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Wires with Pre-Crimped Terminals
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