4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator D30V33MAS

Pololu item #: 4855
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 17.95
5 16.51
25 15.19
100 13.98


backorders allowed

Output voltage range Typical max current output1 Input voltage range2 Low-voltage cutoff
4.2 V – 15 V 3.3 A 4.2 V – 45 V none

1 Typical continuous output current at 30 V in and 9 V out. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. See the output current graph on the product page for more information.
2 Input voltage must be higher than the output voltage and is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.


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

 Description Specs (13) Pictures (18) Resources (3) FAQs (0) On the blog (0) 

4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator D30V33MAS.

Fine-Adjust Step-Down Voltage Regulator D30V33MAx labeled pinout (D30V33MAS version shown).

Fine-Adjust Step-Down Voltage Regulator D30V33MAx, bottom view with dimensions.

Fine-Adjust Step-Down Voltage Regulator D30V33MAx with included hardware (D30V33MAS version shown).

4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator D30V33MAS, top view.

Fine-Adjust Step-down Voltage Regulator D30V33MAx, bottom view.

Fine-Adjust Step-Down Voltage Regulator D30V33MAx, side view showing the output voltage adjustment potentiometer (D30V33MAS version shown).

Examples of assembling the Fine-Adjust Step-Down Voltage Regulator D30V33MAx with included hardware (D30V33MASCMA version pictured).

Fine-Adjust Step-Down Voltage Regulator D30V33MAx, assembled on a breadboard (D30V33MASCMA version pictured).

Output voltage settings for the 4.2-15V Fine-Adjust Step-Down Voltage Regulator D30V3xMASx.

Typical maximum continuous output current of the 4.2-15V, 3.3A Step-Down Voltage Regulator D30V33MASx.

Typical efficiency of the Fine-Adjust Step-Down Voltage Regulator D30V33MAx with Vout = 5 V.

Typical efficiency of the Fine-Adjust Step-Down Voltage Regulator D30V33MAx with Vout = 9 V.

Typical efficiency of the Fine-Adjust Step-Down Voltage Regulator D30V33MAx with Vout = 12 V.

Typical efficiency of the Fine-Adjust Step-Down Voltage Regulator D30V33MAx with Vout = 15 V.

Typical dropout voltage of the 4.2-15V Fine-Adjust Step-Down Voltage Regulator D30V3xMASx.

Typical quiescent current of the 4.2-15V Fine-Adjust Step-Down Voltage Regulator D30V3xMAS.

D30V3x line of step-down voltage regulators. From left to right: D30V30Fx, D30V30MASx, D30V33MASx.


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0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black
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