LT3493 Buck Converter overview

Description

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Category
Sub-Category

LT3493 is a 36.00 V non-sync Buck Converter from with 1.20 A output current. The maximum 36.00 V input voltage can be regulated down into a 0.78 V to 20.00 V output voltage.

It requires are a typical inductor size of 10.00 µH, a typical external component count of 9 and achieves a peak efficiency of 85 %. Further LT3493 characteristics are a fixed 750 kHz switching frequency and 1 available package option(s): DFN-6 .

For the LT3493 replacement search, please select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 3.60 V
V-IN max. 36.00 V
I-OUT? 1.20 A
V-OUT min. 0.78 V
V-OUT max. 20.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 750 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 2500 µA
Operating min. -40 °C
Operating max. 125 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 10.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 85 %
Component count min. 9
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-6
SO/SOIC
SOP
DIP
TO
DDPAK

LT3493 Datasheet

Link to the most up-to-date LT3493 datasheet and the product page for EVM, tools and support information.

LT3493

LT3493 Sample stock and distributor price breaks

LT3493 prices and online available distributors.

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Available Distributors with stock: 6

ARROW-NAC (4)

ProductStockPriceBuy
LT3493EDCB-3#TRMPBF52
13.88 USD
1003.19 USD
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LT3493EDCB#TRMPBF858
13.88 USD
1003.19 USD
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LT3493EDCB#TRMPBF8500
5003.19 USD
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LT3493IDCB#TRMPBF114
14.63 USD
1003.81 USD
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Chip-One-Stop (5)

ProductStockPriceBuy
LT3493EDCB-3#TRMPBF75
16.15 USD
106.14 USD
254.92 USD
504.70 USD
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LT3493EDCB-3#TRMPBF75
16.15 USD
106.14 USD
254.92 USD
504.70 USD
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LT3493EDCB#TRMPBF3500
5004.52 USD
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LT3493EDCB#TRMPBF2048
16.41 USD
105.39 USD
255.33 USD
505.08 USD
1004.96 USD
2004.73 USD
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LT3493IDCB#TRMPBF92
17.62 USD
56.51 USD
106.36 USD
505.99 USD
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DIGI-KEY (8)

ProductStockPriceBuy
LT3493EDCB#TRMPBF2000
5003.19 USD
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LT3493EDCB#TRMPBF2241
16.22 USD
255.55 USD
1003.83 USD
2503.51 USD
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LT3493EDCB#TRMPBF2241
16.22 USD
255.55 USD
1003.83 USD
2503.51 USD
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LT3493EDCB-3#TRMPBF0
5003.19 USD
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LT3493EDCB-3#TRMPBF293
16.22 USD
255.55 USD
1003.83 USD
2503.51 USD
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LT3493EDCB-3#TRMPBF293
16.22 USD
255.55 USD
1003.83 USD
2503.51 USD
Buy Now
LT3493IDCB#TRMPBF0
5003.81 USD
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LT3493IDCB#TRMPBF91
17.40 USD
256.61 USD
1004.57 USD
2504.19 USD
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LT3493IDCB#TRMPBF91
17.40 USD
256.61 USD
1004.57 USD
2504.19 USD
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DC897A5
175.38 USD
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LT3493EDCB#TRPBF0
25003.19 USD
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LT3493EDCB-3#TRPBF0
25003.19 USD
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LT3493IDCB#TRPBF0
25003.81 USD
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Element14 (3)

ProductStockPriceBuy
LT3493EDCB#TRMPBF646
19.94 USD
258.87 USD
1006.12 USD
2505.61 USD
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LT3493EDCB#TRMPBF646
19.94 USD
258.87 USD
1006.12 USD
2505.61 USD
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LT3493IDCB#PBF104
110.45 USD
257.28 USD
1007.08 USD
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FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT3493EDCB#TRMPBF827Buy Now
LT3493EDCB#TRMPBF827Buy Now
LT3493IDCB#PBF104Buy Now

RS-COMPONENTS (2)

ProductStockPriceBuy
LT3493EDCB#TRMPBF446Buy Now
LT3493IDCB#TRMPBF277Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LT3493EDCB-3#PBF0
15.55 USD
253.77 USD
1003.19 USD
Buy Now
LT3493EDCB#PBF0
15.55 USD
253.77 USD
1003.19 USD
Buy Now
LT3493EDCB#TRMPBF0
14.47 USD
5003.19 USD
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LT3493EDCB#TRPBF0
14.73 USD
25003.39 USD
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LT3493IDCB#PBF0
16.63 USD
254.50 USD
1003.81 USD
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LT3493IDCB#TRMPBF0
15.34 USD
5003.81 USD
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LT3493IDCB#TRPBF0
15.64 USD
25004.04 USD
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Available Distributors with stock: 0

no online Distributor with LT3493 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3493. Optional, compare LT3493 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AOZ1282CI AOZ1282CI product overviewAOZ1282CI product overview Alpha Omega SOT23-6
0% AOZ1282DI AOZ1282DI product overviewAOZ1282DI product overview Alpha Omega DFN-8-EP
0% IFX91041EJ V IFX91041EJ V product overviewIFX91041EJ V product overview Infineon PG-DSO-8
0% TLE8366 TLE8366 product overviewTLE8366 product overview Infineon DSO-8
0% LT3493-3 LT3493-3 product overviewLT3493-3 product overview Linear Technology DFN-6
0% MP2490DQ MP2490DQ product overviewMP2490DQ product overview MPS SOIC-8, QFN-10
0% MP2490DS MP2490DS product overviewMP2490DS product overview MPS SOIC-8, QFN-10
0% MP2490CP MP2490CP product overviewMP2490CP product overview MPS SOIC-8, QFN-10
0% MP2492 MP2492 product overviewMP2492 product overview MPS SOIC-8E, QFN-10
0% MP2493 MP2493 product overviewMP2493 product overview MPS SOIC-8E
0% MP2494 MP2494 product overviewMP2494 product overview MPS SOIC-8E
0% MP2495 MP2495 product overviewMP2495 product overview MPS SOIC-16
0% MPQ2490 MPQ2490 product overviewMPQ2490 product overview MPS QFN-10
0% NCV890100 NCV890100 product overviewNCV890100 product overview ON Semiconductor SOIC-8, DFN-8
0% NCV890101 NCV890101 product overviewNCV890101 product overview ON Semiconductor DFN-10
0% NCV890130 NCV890130 product overviewNCV890130 product overview ON Semiconductor SOIC-8, DFN-8
0% NCV890131 NCV890131 product overviewNCV890131 product overview ON Semiconductor DFN-10
0% NCV890200 NCV890200 product overviewNCV890200 product overview ON Semiconductor SOIC-8
0% NCV890201 NCV890201 product overviewNCV890201 product overview ON Semiconductor DFN-10
0% NCV890230 NCV890230 product overviewNCV890230 product overview ON Semiconductor SOIC-8
0% NCV890231 NCV890231 product overviewNCV890231 product overview ON Semiconductor SOIC-8
0% A7985A A7985A product overviewA7985A product overview ST HSOP-8
10% ACT4513 ACT4513 product overviewACT4513 product overview Active Semi SOP-8
10% ACT4514 ACT4514 product overviewACT4514 product overview Active Semi SOP-8
10% ACT4515 ACT4515 product overviewACT4515 product overview Active Semi SOP-8
10% AOZ1240AI AOZ1240AI product overviewAOZ1240AI product overview Alpha Omega SOIC-8
10% MP2452 MP2452 product overviewMP2452 product overview MPS QFN-8
10% NJW4153 NJW4153 product overviewNJW4153 product overview New Japan Radio ESON-8
25% ACT4088 ACT4088 product overviewACT4088 product overview Active Semi SOT23-6
25% ACT4501 ACT4501 product overviewACT4501 product overview Active Semi SOP-8
25% AOZ1280CI AOZ1280CI product overviewAOZ1280CI product overview Alpha Omega SOT23-6
25% MAX16975 MAX16975 product overviewMAX16975 product overview Maxim QSOP-EP-16
25% BD9673 BD9673 product overviewBD9673 product overview Rohm HTSOP-8
25% BD9870 BD9870 product overviewBD9870 product overview Rohm TO252-5
25% BD9873 BD9873 product overviewBD9873 product overview Rohm TO220-5
25% R1240x R1240x product overviewR1240x product overview Ricoh DFN-10, SOT23-6
25% R1244N R1244N product overviewR1244N product overview Ricoh SOT23-6
25% R1245-A-B R1245-A-B product overviewR1245-A-B product overview Ricoh HSOP-8, DFN-10, SOT23-6
25% R1245-C-D R1245-C-D product overviewR1245-C-D product overview Ricoh HSOP-8, DFN-10, SOT23-6
25% R1245-E-F R1245-E-F product overviewR1245-E-F product overview Ricoh HSOP-8, DFN-10, SOT23-6
25% R1245-G-H R1245-G-H product overviewR1245-G-H product overview Ricoh HSOP-8, DFN-10, SOT23-6
25% BD9E151 BD9E151 product overviewBD9E151 product overview Rohm VSON-8
25% R1245-A-B-AEC R1245-A-B-AEC product overviewR1245-A-B-AEC product overview Ricoh HSOP-8
25% R1245-C-D-AEC R1245-C-D-AEC product overviewR1245-C-D-AEC product overview Ricoh HSOP-8
25% R1245-E-F-AEC R1245-E-F-AEC product overviewR1245-E-F-AEC product overview Ricoh HSOP-8
25% R1245-G-H-AEC R1245-G-H-AEC product overviewR1245-G-H-AEC product overview Ricoh HSOP-8
50% ADP2300 ADP2300 product overviewADP2300 product overview Analog Devices TSOT23-6
50% ADP2301 ADP2301 product overviewADP2301 product overview Analog Devices TSOT23-6
50% AP5100 AP5100 product overviewAP5100 product overview Diodes
50% ISL85001 ISL85001 product overviewISL85001 product overview Intersil DFN-12
50% LT3503 LT3503 product overviewLT3503 product overview Linear Technology DFN-6
50% MAX16976 MAX16976 product overviewMAX16976 product overview Maxim QSOP-16
50% MP2451 MP2451 product overviewMP2451 product overview MPS SOT23-6
50% MP4566 MP4566 product overviewMP4566 product overview MPS QFN-8
50% MPQ2451 MPQ2451 product overviewMPQ2451 product overview MPS SOT23-6
50% LM2590HV LM2590HV product overviewLM2590HV product overview Texas Instruments TO-263, TO-220-7
50% LM2590HV-AQ-Q1 LM2590HV-AQ-Q1 product overviewLM2590HV-AQ-Q1 product overview Texas Instruments TO-263, TO-220-7
50% LM2734X LM2734X product overviewLM2734X product overview Texas Instruments SOT23-6
50% LM2734X-Q1 LM2734X-Q1 product overviewLM2734X-Q1 product overview Texas Instruments SOT23-6
50% LM2734Y LM2734Y product overviewLM2734Y product overview Texas Instruments SOT23-6
50% LM2734Y-Q1 LM2734Y-Q1 product overviewLM2734Y-Q1 product overview Texas Instruments SOT23-6
50% LM2734Z LM2734Z product overviewLM2734Z product overview Texas Instruments WQFN-6, SOT23-6
50% LM2734Z-Q1 LM2734Z-Q1 product overviewLM2734Z-Q1 product overview Texas Instruments WQFN-6, SOT23-6
50% LMR12010X LMR12010X product overviewLMR12010X product overview Texas Instruments SOT23-6
50% LMR12010Y LMR12010Y product overviewLMR12010Y product overview Texas Instruments SOT23-6
50% LMR14006-X LMR14006-X product overviewLMR14006-X product overview Texas Instruments TSOT23-6
50% LMR14006-Y LMR14006-Y product overviewLMR14006-Y product overview Texas Instruments TSOT23-6
50% LMR14206 LMR14206 product overviewLMR14206 product overview Texas Instruments SOT23-6
50% RT6200 RT6200 product overviewRT6200 product overview Richtek SOT23-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3493.

V-IN max. 36 V, I-OUT 1.2 A, V-OUT min. 0.78 V, Frequency typ. 750 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025002 2.2 1.8 2.4 57.00 2.8 x 2.8 x 3
744025003 3.3 1.5 1.8 85.00 2.8 x 2.8 x 3
74404024022 2.2 1.8 2.0 80.00 2.5 x 2 x 1.2
74404032022 2.2 1.8 1.7 50.00 3 x 3 x 1.5
74404032033 3.3 1.5 1.5 70.00 3 x 3 x 1.5
74404041033 3.3 1.8 2.1 69.00 4 x 4 x 1.2
74404042033 3.3 2.0 2.9 55.00 4 x 4 x 1.8
74404052033 3.3 2.6 3.0 42.20 5 x 5 x 2
7440420027 2.7 2.0 2.2 47.00 4.8 x 4.8 x 2
744042003 3.3 2.0 1.8 50.00 4.8 x 4.8 x 2
7440430022 2.2 2.5 2.4 27.00 4.8 x 4.8 x 3
7440430027 2.7 2.4 2.0 25.00 4.8 x 4.8 x 3
744043003 3.3 2.2 1.8 30.00 4.8 x 4.8 x 3
744045002 2.2 1.6 2.8 88.00 4.5 x 3.2 x 2.9
7440450027 2.7 1.5 2.7 96.00 4.5 x 3.2 x 2.9
744045003 3.3 1.4 2.7 104.00 4.5 x 3.2 x 2.9
744052002 2.5 2.4 2.7 20.00 5.8 x 5.8 x 2
744052003 3.0 2.2 2.4 40.00 5.8 x 5.8 x 2
744053002 2.6 3.0 2.7 20.00 5.8 x 5.8 x 3
744053003 3.0 2.8 2.5 20.00 5.8 x 5.8 x 3
744062002 2.2 3.4 2.7 10.00 6.8 x 6.8 x 2.5
744062003 3.3 2.8 2.5 20.00 6.8 x 6.8 x 2.5
7440680027 2.7 2.2 1.9 52.00 8 x 8 x 1.2
7440680033 3.3 2.0 1.8 61.00 8 x 8 x 1.2
7440690022 2.2 2.8 2.9 35.00 8 x 8 x 1.5
7440690033 3.3 2.6 2.3 42.00 8 x 8 x 1.5
7440700033 3.3 3.2 2.6 30.00 8 x 8 x 2
74408941029 2.9 1.6 3.0 101.00 4.8 x 4.8 x 2.1
74408941035 3.5 1.5 2.8 113.00 4.8 x 4.8 x 2.1
74438322022 2.2 1.3 2.2 252.00 2.5 x 2 x 0.8
74438323022 2.2 1.3 2.5 147.00 2.5 x 2 x 1
74438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
74438324022 2.2 1.6 2.9 123.00 2.5 x 2 x 1.2
74438324033 3.3 1.3 2.6 226.00 2.5 x 2 x 1.2
744773027 2.7 2.3 3.0 39.00 4 x 4.5 x 3.5
744773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
7447785003 3.3 2.8 3.0 43.00 5.9 x 6.2 x 3.3
74479275222 2.2 1.3 1.7 166.00 2 x 1.25 x 1
74479276222 2.2 1.4 1.8 135.00 2 x 1.6 x 1
74479276222C 2.2 1.6 2.5 112.00 2 x 1.25 x 1
74479287222 2.2 1.5 2.5 132.00 2.5 x 2 x 1
74479288222 2.2 1.7 2.8 90.00 2.5 x 2 x 1.2
74479889222 2.2 1.3 1.7 250.00 2.5 x 2 x 1.2
78438322022 2.2 1.3 2.2 252.00 2.5 x 2 x 0.8
78438323022 2.2 1.3 2.5 147.00 2.5 x 2 x 1
78438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
784773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
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