NCP3065 Buck LED driver IC overview

Description

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Category
Sub-Category

NCP3065 is a non-sync DC/DC Buck LED driver IC from . Maximum input voltage is 40.0 V and it drives an output current of up to 0.70 A. Assuming a typical 3.5V LED forward voltage NCP3065 can drive up to 9 LED in series.

The LED Buck driver IC features adjustable 150 kHz switching frequency, a feedback voltage of 0.24 V and requires a typical inductor size of 100.0 uH. This combination results in a peak efficiency of ~84 %. NCP3065 comes in 2 package option(s) - DFN-8 SOIC-8 .

Parameter and feature overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 4.0 V
V-IN max. 40.0 V
Nr.of LEDs max. 9
I-OUT? 0.70 A
MOSFET intern
ext.clock sync. no
sync/non-sync non-sync
Frequency typ. 150 kHz
Frequency adjustable adjustable
Frequency min. 50 kHz
Frequency max. 250 kHz
Softstart no
Softstart adjustable no
Quiescent current max. 7000 uA
Operating min. -40 °C
Operating max. 125 °C
Junction min.
Junction max.
thermal shutdown typ. 160.0 °C
Inductor size 100.0 uH
Inductor suggested by Würth Elektronik 7445620
Feedback Voltage 0.24 V
Automotive AEC-Q100 yes
Topology Buck
Peak Efficiency 84 %
Component count min. 7
DC Dimming yes
PWM Dimming yes
digital dimming no
Nr. of package options 2
SC70
SOT
MSOP
QFN/DFN DFN-8
SO/SOIC SOIC-8
SOP
DIP
TO
Variation
LED temperature compensation no

NCP3065 Datasheet

Link to the most up-to-date NCP3065 datasheet and the product page for EVM, tools and support information.

NCP3065

NCP3065 inventory, samples and price

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Available Distributors with stock: 8

Avnet Asia (1)

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Future Electronics (2)

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Available Distributors without stock: 5

Allied Electronics, Inc (0)

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11.50 USD
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Avnet America (0)

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Avnet Europe (0)

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Available Distributors with stock: 13

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element14 Asia-Pacific

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Chip One Exchange

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Allied Electronics & Automation

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Equivalents and alternatives

The following DC/DC LED Buck driver are similar to NCP3065. Optional, compare NCP3065 side-by-side with other LED driver via the Comparison function.

Variation Compare Product Manufacturer Package
0% NCP3066 NCP3066 product overviewNCP3066 product overview ON Semiconductor DFN-8, SOIC-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of NCP3065.

V-IN min. 4 V, V-IN max. 40 V, I-OUT 0.7 A, Frequency typ. 150 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054680 68.0 0.8 1.0 400.00 5 x 5 x 4
74404063680 68.0 0.9 0.9 360.00 6 x 6 x 2.8
74404064101 100.0 0.8 1.0 433.00 6 x 6 x 4.5
74404064680 68.0 1.0 1.3 289.00 6 x 6 x 4.5
74404084101 100.0 1.0 1.3 290.00 8 x 8 x 4.2
74404084680 68.0 1.3 1.6 196.00 8 x 8 x 4.2
744065101 100.0 1.0 0.9 365.00 10 x 10 x 3.1
744065680 68.0 1.2 1.1 232.00 10 x 10 x 3.1
744065820 82.0 1.1 1.0 323.00 10 x 10 x 3.1
744066101 100.0 1.2 1.2 255.00 10 x 10 x 4.1
744066680 68.0 1.5 1.5 185.00 10 x 10 x 4.1
744071101 100.0 1.0 0.9 270.00 8 x 8 x 4.6
744071680 68.0 1.3 1.1 185.00 8 x 8 x 4.6
744731680 68.0 1.5 1.0 170.00 7.8 x 7.8 x 7.5
744741101 100.0 1.1 0.9 420.00 8 x 8 x 6
744743101 100.0 1.5 1.6 250.00 7.5 x 7.5 x 12.5
7447452101 100.0 1.8 1.5 130.00 9 x 9 x 13.5
7447462680 68.0 0.8 1.0 340.00 5.5 x 5.5 x 8.5
7447471101 100.0 1.6 1.4 150.00 10.5 x 10.5 x 11.5
7447713101 100.0 0.9 1.4 398.00 10 x 10 x 3
7447713680 68.0 1.1 1.6 275.00 10 x 10 x 3
7447713820 82.0 1.0 1.5 349.00 10 x 10 x 3
7447715101 100.0 1.3 1.4 250.00 12 x 12 x 4.5
744772101 100.0 0.9 1.6 120.00 7.8 x 7.8 x 10
744775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
744775182 82.0 0.9 1.0 208.00 7 x 7.8 x 5.5
74477520 100.0 0.8 0.9 248.20 7 x 7.8 x 5.5
744776168 68.0 1.2 1.5 138.00 9 x 10 x 5.9
744776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
74477620 100.0 1.0 1.1 200.00 9 x 10 x 5.9
744777168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
744777182 82.0 0.8 0.9 257.00 7.3 x 7.3 x 4.5
7447779168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
7447779182 82.0 0.8 0.9 250.00 7.3 x 7.3 x 4.5
744778168 68.0 0.7 0.8 417.00 7.3 x 7.3 x 3.4
7447789168 68.0 0.7 0.8 427.00 7.3 x 7.3 x 3.5
744787101 100.0 1.0 0.9 396.00 7.8 x 7 x 5
744787680 68.0 1.1 1.0 246.00 7.8 x 7 x 5
744787820 82.0 1.0 0.9 278.00 7.8 x 7 x 5
784775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
784775182 82.0 0.9 1.0 248.00 7 x 7.8 x 5.5
78477520 100.0 0.8 0.9 281.00 7 x 7.8 x 5.5
784776168 68.0 1.2 1.5 138.00 9 x 10 x 5.9
784776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
78477620 100.0 1.0 1.1 200.00 9 x 10 x 5.9
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