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3.3V, 3.6A Step-Down Voltage Regulator D36V28F3

Pololu item #: 3781 82 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 11.95
5 10.99
25 10.11
100 9.31


backorders allowed

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4.5 V to 50 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.8″ yet delivers typical maximum continuous output currents between 3.2 A and 4.5 A, depending on the input voltage, which makes it 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 10 µA to 20 µA per volt on VIN. The regulator also features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage. 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 type Select variant…

 Description Specs (11) Pictures (9) Resources (3) FAQs (0) On the blog (1) 

Dimensions

Size: 0.7″ × 0.8″ × 0.345″1
Weight: 3.3 g1

General specifications

Minimum operating voltage: 4.5 V2
Maximum operating voltage: 50 V
Continuous output current: 3.6 A3
Output voltage: 3.3 V
Reverse voltage protection?: Y4
Maximum quiescent current: 3 mA5
Output type: fixed 3.3V

Identifying markings

PCB dev codes: reg24a
Other PCB markings: 0J11946

Notes:

1
Without included optional headers.
2
Subject to dropout voltage considerations. See the dropout voltage graph under the description tab for more information.
3
Typical continuous output current at 36 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
To -40 V. Connecting supplies over 40 V in reverse can damage the device.
5
While enabled with no load. Can be reduced to under 1 mA using the enable pin.

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Related Categories

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