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3.3V, 3.6A Step-Down Voltage Regulator D36V28F3

Pololu item #: 3781 267 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 with a precise cutoff threshold 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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0.1″ (2.54 mm) Female Headers
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