LT1933 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT1933 is a 36.00 V non-sync Buck Converter from with 0.60 A output current. The maximum 36.00 V input voltage can be regulated down into a 1.25 V to 36.00 V output voltage.

It requires are a typical inductor size of 22.00 µH, a typical external component count of 8 and achieves a peak efficiency of 87 %. Further LT1933 characteristics are a fixed 500 kHz switching frequency and 2 available package option(s): TSOT23-6 DFN-6 .

For the LT1933 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? 0.60 A
V-OUT min. 1.25 V
V-OUT max. 36.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 500 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. 150 °C
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ.
Inductor size typ. 22.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 87 %
Component count min. 8
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT TSOT23-6
MSOP
QFN/DFN DFN-6
SO/SOIC
SOP
DIP
TO
DDPAK

LT1933 Datasheet

Link to the most up-to-date LT1933 datasheet and the product page for EVM, tools and support information.

LT1933

LT1933 Sample stock and distributor price breaks

LT1933 prices and online available distributors.

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Available Distributors with stock: 10

Buerklin (1)

ProductStockPriceBuy
LT1933ES63Buy Now

Chip-One-Stop (9)

ProductStockPriceBuy
LT1933ES6#TRMPBF1151
13.58 USD
102.54 USD
502.17 USD
1002.11 USD
2002.08 USD
5002.05 USD
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LT1933ES6#TRMPBF246
15.79 USD
104.58 USD
254.36 USD
503.99 USD
1003.69 USD
2003.54 USD
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LT1933ES6#TRMPBF12500
5003.25 USD
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LT1933ES6#TRPBF20000
25003.18 USD
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LT1933HS6#TRMPBF500
17.13 USD
105.63 USD
255.37 USD
504.91 USD
1004.54 USD
2004.36 USD
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LT1933IDCB#TRMPBF4500
5003.51 USD
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LT1933IDCB#TRMPBF482
16.41 USD
105.06 USD
254.83 USD
504.41 USD
1004.08 USD
2003.92 USD
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LT1933IS6#TRMPBF262
15.19 USD
104.37 USD
254.32 USD
504.12 USD
1004.02 USD
2003.84 USD
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LT1933IS6#TRPBF2500
25003.65 USD
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DIGI-KEY (20)

ProductStockPriceBuy
LT1933IS6#TRMPBF6Buy Now
LT1933ES6#TRMPBF5000
5002.29 USD
Buy Now
LT1933ES6#TRMPBF5448
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
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LT1933ES6#TRMPBF5448
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
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LT1933ES6#TRPBF2500
25002.29 USD
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LT1933ES6#TRPBF4686
14.39 USD
253.92 USD
1002.75 USD
2502.52 USD
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LT1933ES6#TRPBF4686
14.39 USD
253.92 USD
1002.75 USD
2502.52 USD
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LT1933IS6#TRMPBF1500
5002.64 USD
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LT1933IS6#TRMPBF1942
15.15 USD
254.60 USD
1003.17 USD
2502.90 USD
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LT1933IS6#TRMPBF1942
15.15 USD
254.60 USD
1003.17 USD
2502.90 USD
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LT1933IDCB#TRMPBF1000
5002.64 USD
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LT1933IDCB#TRMPBF1449
15.15 USD
254.60 USD
1003.17 USD
2502.90 USD
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LT1933IDCB#TRMPBF1449
15.15 USD
254.60 USD
1003.17 USD
2502.90 USD
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LT1933HS6#TRMPBF1000
5002.93 USD
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LT1933HS6#TRMPBF1443
15.71 USD
255.10 USD
1003.52 USD
2503.22 USD
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LT1933HS6#TRMPBF1443
15.71 USD
255.10 USD
1003.52 USD
2503.22 USD
Buy Now
LT1933HDCB#TRMPBF0
5002.93 USD
Buy Now
LT1933HDCB#TRMPBF281
15.71 USD
255.10 USD
1003.52 USD
2503.22 USD
Buy Now
LT1933HDCB#TRMPBF281
15.71 USD
255.10 USD
1003.52 USD
2503.22 USD
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DC1092A2
1150.75 USD
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DC662A2
1150.75 USD
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LT1933IS6#TRPBF0
25002.64 USD
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LT1933IDCB#TRPBF0
25002.64 USD
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LT1933HDCB#TRPBF0
25002.93 USD
Buy Now
LT1933HS6#TRPBF0
25002.93 USD
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Element14 (3)

ProductStockPriceBuy
LT1933ES6#TRMPBF3146
17.14 USD
256.38 USD
1004.37 USD
2504.00 USD
Buy Now
LT1933ES6#TRMPBF3146
17.14 USD
256.38 USD
1004.37 USD
2504.00 USD
Buy Now
LT1933IDCB#PBF0
15.25 USD
255.06 USD
1004.73 USD
Buy Now
LT1933IS6#PBF365
15.25 USD
255.06 USD
1004.73 USD
Buy Now

FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT1933ES6#TRMPBF5256Buy Now
LT1933ES6#TRMPBF5256Buy Now
LT1933IS6#PBF504Buy Now

NEWARK (2)

ProductStockPriceBuy
LT1933ES6#PBF0
00.00 USD
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LT1933ES6#TRMPBF0
13.21 USD
5002.29 USD
Buy Now
LT1933ES6#TRMPBF74
14.54 USD
254.06 USD
1002.75 USD
2502.52 USD
Buy Now
LT1933ES6#TRPBF0
13.39 USD
25002.43 USD
Buy Now
LT1933HDCB#PBF0
15.28 USD
253.52 USD
502.93 USD
Buy Now
LT1933HDCB#TRPBF0
14.34 USD
25003.11 USD
Buy Now
LT1933HS6#PBF0
15.28 USD
253.52 USD
502.93 USD
Buy Now
LT1933IDCB#TRMPBF0
13.70 USD
5002.64 USD
Buy Now
LT1933IS6#PBF463
14.76 USD
253.17 USD
502.64 USD
Buy Now
LT1933IS6#TR0
00.00 USD
Buy Now
LT1933IS6#TRMPBF0
13.70 USD
5002.64 USD
Buy Now

RS-COMPONENTS (3)

ProductStockPriceBuy
LT1933ES6#TRMPBF244Buy Now
LT1933ES6#TRMPBF1281Buy Now
LT1933IS6#TRMPBF224Buy Now

Reichelt Elektronik (2)

ProductStockPriceBuy
LT1933ES6#TRMPBF1Buy Now
LT1933IS6#TRMPBF1Buy Now

Schukat (1)

ProductStockPriceBuy
LT1933ES6#TRMPBF524Buy Now

TME (1)

ProductStockPriceBuy
LT1933ES6#TRMPBF323Buy Now

Available Distributors with stock: 0

no online Distributor with LT1933 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1933. Optional, compare LT1933 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% LT3493 LT3493 product overviewLT3493 product overview Linear Technology DFN-6
0% LT3493-3 LT3493-3 product overviewLT3493-3 product overview Linear Technology DFN-6
0% MAX15014 MAX15014 product overviewMAX15014 product overview Maxim TQFN-36
0% MAX15015 MAX15015 product overviewMAX15015 product overview Maxim TQFN-36
0% MAX15016 MAX15016 product overviewMAX15016 product overview Maxim TQFN-36
0% MAX15017 MAX15017 product overviewMAX15017 product overview Maxim TQFN-36
0% MAX5035 MAX5035 product overviewMAX5035 product overview Maxim PDIP-8, SOIC-8
0% MAX5080 MAX5080 product overviewMAX5080 product overview Maxim TQFN-32
0% MAX5081 MAX5081 product overviewMAX5081 product overview Maxim TQFN-16
0% MAX5096 MAX5096 product overviewMAX5096 product overview Maxim TSSOP-EP-20, TQFN-16
0% MAX5097 MAX5097 product overviewMAX5097 product overview Maxim TSSOP-EP-20, TQFN-16
0% MP2451 MP2451 product overviewMP2451 product overview MPS SOT23-6
0% MP2452 MP2452 product overviewMP2452 product overview MPS QFN-8
0% MP4566 MP4566 product overviewMP4566 product overview MPS QFN-8
0% MPQ2451 MPQ2451 product overviewMPQ2451 product overview MPS SOT23-6
0% NJW4153 NJW4153 product overviewNJW4153 product overview New Japan Radio ESON-8
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% LM22675 LM22675 product overviewLM22675 product overview Texas Instruments SO-8
0% LM22675-Q1 LM22675-Q1 product overviewLM22675-Q1 product overview Texas Instruments SO-8
0% LM2590HV LM2590HV product overviewLM2590HV product overview Texas Instruments TO-263, TO-220-7
0% LM2590HV-AQ-Q1 LM2590HV-AQ-Q1 product overviewLM2590HV-AQ-Q1 product overview Texas Instruments TO-263, TO-220-7
0% LM2598 LM2598 product overviewLM2598 product overview Texas Instruments
0% LM2672 LM2672 product overviewLM2672 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16
0% LMR14006-X LMR14006-X product overviewLMR14006-X product overview Texas Instruments TSOT23-6
0% LMR14006-Y LMR14006-Y product overviewLMR14006-Y product overview Texas Instruments TSOT23-6
0% LMR14206 LMR14206 product overviewLMR14206 product overview Texas Instruments SOT23-6
0% TPS5410 TPS5410 product overviewTPS5410 product overview Texas Instruments SOIC-8
0% TPS5410-Q1 TPS5410-Q1 product overviewTPS5410-Q1 product overview Texas Instruments SOIC-8
0% RT6200 RT6200 product overviewRT6200 product overview Richtek SOT23-6
10% AS7620A AS7620A product overviewAS7620A product overview AMS MLPQ-12
10% LT3502 LT3502 product overviewLT3502 product overview Linear Technology DFN-8, MSOP-10
10% LT3502A LT3502A product overviewLT3502A product overview Linear Technology DFN-8, MSOP-10
10% MAX5033 MAX5033 product overviewMAX5033 product overview Maxim PDIP-8, SOIC-8
10% LA5757TP LA5757TP product overviewLA5757TP product overview ON Semiconductor TP5HFA
10% BD9G101 BD9G101 product overviewBD9G101 product overview Rohm SOT-23
10% LM22674 LM22674 product overviewLM22674 product overview Texas Instruments SO-8
10% LM22674-Q1 LM22674-Q1 product overviewLM22674-Q1 product overview Texas Instruments SO-8
10% LM2597 LM2597 product overviewLM2597 product overview Texas Instruments PDIP-8, SOIC-8
10% LM2597HV LM2597HV product overviewLM2597HV product overview Texas Instruments PDIP-8, SOIC-8
10% LM2671 LM2671 product overviewLM2671 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16
25% LT3437 LT3437 product overviewLT3437 product overview Linear Technology TSSOP-16, DFN-10
25% MAX16976 MAX16976 product overviewMAX16976 product overview Maxim QSOP-16
50% LMR14203 LMR14203 product overviewLMR14203 product overview Texas Instruments SOT23-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1933.

V-IN max. 36 V, I-OUT 0.6 A, V-OUT min. 1.245 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025100 10.0 1.0 1.1 170.00 2.8 x 2.8 x 3
744025150 15.0 0.7 0.9 356.00 2.8 x 2.8 x 3
74404032100 10.0 0.8 0.9 230.00 3 x 3 x 1.5
74404032150 15.0 0.7 0.8 300.00 3 x 3 x 1.5
74404041100 10.0 1.3 1.0 168.00 4 x 4 x 1.2
74404042100 10.0 1.2 1.5 150.00 4 x 4 x 1.8
74404042150 15.0 0.9 1.2 210.00 4 x 4 x 1.8
744042100 10.0 1.3 1.0 120.00 4.8 x 4.8 x 2
744042120 12.0 1.2 1.0 150.00 4.8 x 4.8 x 2
744042150 15.0 1.0 0.8 190.00 4.8 x 4.8 x 2
744043100 10.0 1.2 1.0 95.00 4.8 x 4.8 x 3
744043120 12.0 1.1 1.0 100.00 4.8 x 4.8 x 3
744043150 15.0 1.0 0.8 120.00 4.8 x 4.8 x 3
744045100 10.0 1.0 1.5 240.00 4.5 x 3.2 x 2.9
744045120 12.0 0.8 1.4 336.00 4.5 x 3.2 x 2.9
744045150 15.0 0.7 1.2 400.00 4.5 x 3.2 x 2.9
744052009 9.0 1.3 1.4 90.00 5.8 x 5.8 x 2
744052100 10.0 1.1 1.3 105.00 5.8 x 5.8 x 2
744052120 12.0 1.0 1.2 130.00 5.8 x 5.8 x 2
744052150 15.0 1.0 1.1 175.00 5.8 x 5.8 x 2
744053100 10.0 1.5 1.4 60.00 5.8 x 5.8 x 3
744053120 12.0 1.5 1.3 70.00 5.8 x 5.8 x 3
744053150 15.0 1.4 1.2 80.00 5.8 x 5.8 x 3
744062100 10.0 1.6 1.4 53.00 6.8 x 6.8 x 2.5
744062120 12.0 1.4 1.3 70.00 6.8 x 6.8 x 2.5
744062150 15.0 1.3 1.1 80.00 6.8 x 6.8 x 2.5
7440680100 10.0 1.2 1.0 177.00 8 x 8 x 1.2
7440680120 12.0 1.2 1.0 195.00 8 x 8 x 1.2
7440680150 15.0 1.1 0.8 213.00 8 x 8 x 1.2
7440690100 10.0 1.6 1.3 112.00 8 x 8 x 1.5
7440690120 12.0 1.4 1.2 148.00 8 x 8 x 1.5
7440690150 15.0 1.3 1.1 179.00 8 x 8 x 1.5
7440700150 15.0 1.7 1.3 117.00 8 x 8 x 2
74408941150 15.0 0.8 1.4 430.00 4.8 x 4.8 x 2.1
74438323100 10.0 0.6 1.4 733.00 2.5 x 2 x 1
74438324100 10.0 0.7 1.4 680.00 2.5 x 2 x 1.2
744773115 15.0 1.2 1.5 204.00 4 x 4.5 x 3.5
7447785115 15.0 1.6 1.4 165.00 5.9 x 6.2 x 3.3
78438323100 10.0 0.6 1.4 733.00 2.5 x 2 x 1
784773115 15.0 1.2 1.5 204.00 4 x 4.5 x 3.5
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