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.

OEMSecrets.com
findchips.com

Available Distributors with stock: 10

Buerklin (1)

ProductStockPriceBuy
LT1933ES6#PBF3Buy Now

Chip One Stop (1)

ProductStockPriceBuy
LT1933IS6#TRMPBF740
15.13 USD
103.49 USD
502.74 USD
1002.67 USD
2002.64 USD
5002.54 USD
Buy Now

Digi-Key (11)

ProductStockPriceBuy
LT1933ES6#TRMPBF0
5002.34 USD
Buy Now
LT1933ES6#TRMPBF105
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT1933ES6#TRMPBF105
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT1933HS6#TRMPBF500
5002.99 USD
Buy Now
LT1933HS6#TRMPBF752
15.83 USD
255.20 USD
1003.59 USD
2503.29 USD
Buy Now
LT1933HS6#TRMPBF752
15.83 USD
255.20 USD
1003.59 USD
2503.29 USD
Buy Now
LT1933ES6#TRPBF0
25002.34 USD
Buy Now
LT1933ES6#TRPBF4557
14.48 USD
254.00 USD
1002.80 USD
2502.57 USD
Buy Now
LT1933ES6#TRPBF4557
14.48 USD
254.00 USD
1002.80 USD
2502.57 USD
Buy Now
LT1933IS6#TRMPBF0
5002.69 USD
Buy Now
LT1933IS6#TRMPBF179
15.25 USD
254.69 USD
1003.23 USD
2502.96 USD
Buy Now
LT1933IS6#TRMPBF179
15.25 USD
254.69 USD
1003.23 USD
2502.96 USD
Buy Now
DC662A3
1153.00 USD
Buy Now
DC1092A2
1153.00 USD
Buy Now
LT1933IDCB#TRMPBF0
5002.69 USD
Buy Now
LT1933IDCB#TRMPBF0
15.25 USD
254.69 USD
1003.23 USD
2502.96 USD
Buy Now
LT1933IDCB#TRMPBF0
15.25 USD
254.69 USD
1003.23 USD
2502.96 USD
Buy Now
LT1933HDCB#TRMPBF0
5002.99 USD
Buy Now
LT1933HDCB#TRMPBF0
15.83 USD
255.20 USD
1003.59 USD
2503.29 USD
Buy Now
LT1933HDCB#TRMPBF0
15.83 USD
255.20 USD
1003.59 USD
2503.29 USD
Buy Now
LT1933IS6#TRPBF0
25002.69 USD
Buy Now
LT1933IDCB#TRPBF0
25002.69 USD
Buy Now
LT1933HDCB#TRPBF0
25002.99 USD
Buy Now
LT1933HS6#TRPBF0
25002.99 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT1933ES6#TRMPBF1645
17.22 USD
256.45 USD
1004.41 USD
2504.04 USD
Buy Now
LT1933ES6#TRMPBF1645
17.22 USD
256.45 USD
1004.41 USD
2504.04 USD
Buy Now
LT1933IS6#PBF589
17.20 USD
254.93 USD
1004.04 USD
Buy Now

Farnell Element14 (2)

ProductStockPriceBuy
LT1933ES6#TRMPBF3Buy Now
LT1933ES6#TRMPBF0Buy Now
LT1933IDCB#PBF0Buy Now
LT1933IS6#PBF512Buy Now

Mouser-Electronics (5)

ProductStockPriceBuy
LT1933ES6#TRPBF1138
14.59 USD
104.26 USD
254.10 USD
1002.88 USD
2502.64 USD
25002.40 USD
Buy Now
LT1933HS6#TRMPBF496
15.98 USD
105.55 USD
255.33 USD
1003.68 USD
2503.38 USD
5003.06 USD
Buy Now
LT1933ES6#TRMPBF1451 On Order
14.71 USD
104.38 USD
254.20 USD
1002.88 USD
2502.64 USD
5002.40 USD
Buy Now
LT1933IS6#TRMPBF500 On Order
15.39 USD
105.00 USD
254.81 USD
1003.31 USD
2503.04 USD
5002.76 USD
Buy Now
LT1933IDCB#TRMPBF472 On Order
15.39 USD
105.00 USD
254.81 USD
1003.31 USD
2503.04 USD
5002.76 USD
Buy Now
LT1933IDCB#TRPBFNone
25002.76 USD
Buy Now
LT1933IS6#TRPBFNone
25002.76 USD
Buy Now
LT1933HDCB#TRPBFNone
25003.06 USD
Buy Now
LT1933HDCB#TRMPBFNone
5003.06 USD
Buy Now
LT1933HS6#TRPBFNone
25003.06 USD
Buy Now

Newark Electronics (2)

ProductStockPriceBuy
LT1933ES6#TRMPBF164
14.54 USD
254.06 USD
1002.75 USD
2502.52 USD
Buy Now
LT1933IS6#PBF211
14.76 USD
253.17 USD
502.64 USD
Buy Now

RS Components (4)

ProductStockPriceBuy
LT1933ES6#TRMPBF209Buy Now
LT1933ES6#TRMPBF820Buy Now
LT1933IS6#TRMPBF98Buy Now
LT1933IS6#TRMPBF446Buy Now

Reichelt Elektronik (2)

ProductStockPriceBuy
LT1933ES6#TRMPBF1Buy Now
LT1933IS6#TRMPBF1Buy Now

Schukat Electronic (1)

ProductStockPriceBuy
LT1933ES6#TRMPBF318Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 13

Arrow Electronics

ProductStockPriceBuy
LT1933HDCB#TRPBF 2500
13.56 $
1002.93 $
Buy Now
LT1933ES6#TRMPBF 983
12.79 $
1002.29 $
Buy Now
LT1933HS6#TRMPBF 500
13.56 $
1002.93 $
Buy Now
LT1933HS6#TRMPBF 0
13.56 $
1002.93 $
Buy Now
LT1933ES6#TRMPBF 0
12.79 $
1002.29 $
Buy Now
LT1933ES6#TRMPBF 0
12.79 $
1002.29 $
Buy Now
LT1933IS6#TRMPBF 0
13.20 $
1002.64 $
Buy Now
LT1933IS6#TRMPBF 0
13.20 $
1002.64 $
Buy Now
LT1933IS6#TRMPBF 0
13.20 $
1002.64 $
Buy Now
LT1933HS6#TRPBF 0
13.56 $
1002.93 $
Buy Now
LT1933HS6#TRPBF 0
13.56 $
1002.93 $
Buy Now
LT1933IS6#TRPBF 0
13.20 $
1002.64 $
Buy Now
LT1933ES6#TR 0
25004.58 $
Buy Now
LT1933IDCB#TRPBF 0
13.20 $
1002.64 $
Buy Now
LT1933ES6#3CIPBF 0 Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1933ES6#TRPBF 4557
2502.07 €
1002.26 €
253.22 €
13.61 €
Buy Now
LT1933ES6#TRPBF 4557
2502.07 €
1002.26 €
253.22 €
13.61 €
Buy Now
LT1933HS6#TRMPBF 752
2502.65 €
1002.89 €
254.19 €
14.70 €
Buy Now
LT1933HS6#TRMPBF 752
2502.65 €
1002.89 €
254.19 €
14.70 €
Buy Now
LT1933HS6#TRMPBF 500
5002.41 €
Buy Now
LT1933IS6#TRMPBF 179
2502.39 €
1002.60 €
253.78 €
14.23 €
Buy Now
LT1933IS6#TRMPBF 179
2502.39 €
1002.60 €
253.78 €
14.23 €
Buy Now
LT1933ES6#TRMPBF 105
2502.07 €
1002.26 €
253.30 €
13.70 €
Buy Now
LT1933ES6#TRMPBF 105
2502.07 €
1002.26 €
253.30 €
13.70 €
Buy Now
DC662A 3
1123.30 €
Buy Now
DC1092A 2
1123.30 €
Buy Now
LT1933ES6#TRMPBF 0
5001.88 €
Buy Now
LT1933ES6#TRPBF 0
25001.88 €
Buy Now
LT1933IS6#TRMPBF 0
5002.17 €
Buy Now
LT1933IDCB#TRMPBF 0
5002.17 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT1933ES6#TRMPBF 164
14.54 $
254.06 $
1002.75 $
2502.52 $
Buy Now
LT1933IS6#PBF 211
14.76 $
253.17 $
502.64 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1933ES6#TRPBF 1138
14.48 $
104.16 $
254.00 $
1002.80 $
2502.57 $
25002.34 $
Buy Now
LT1933HS6#TRMPBF 496
15.83 $
105.41 $
255.20 $
1003.59 $
2503.29 $
5002.99 $
Buy Now
LT1933ES6#TRMPBF 0
14.60 $
104.27 $
254.10 $
1002.80 $
2502.57 $
5002.34 $
Buy Now
LT1933IS6#TRMPBF 0
15.26 $
104.88 $
254.69 $
1003.23 $
2502.96 $
5002.69 $
Buy Now
LT1933IDCB#TRMPBF 0
15.26 $
104.88 $
254.69 $
1003.23 $
2502.96 $
5002.69 $
Buy Now
LT1933IDCB#TRPBF 0
25002.69 $
Buy Now
LT1933IS6#TRPBF 0
25002.69 $
Buy Now
LT1933HDCB#TRPBF 0
25002.99 $
Buy Now
LT1933HDCB#TRMPBF 0
5002.99 $
Buy Now
LT1933HS6#TRPBF 0
25002.99 $
Buy Now
LT1933ES6 0 Buy Now
LT1933IS6 0 Buy Now
LT1933IDCB 0 Buy Now
LT1933IS6#PBF 0 Buy Now
LT1933IDCB#PBF 0 Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LT1933ES6TRPBF 2
33.18 $
14.77 $
Buy Now
LT1933HDCB 36
54.67 $
26.22 $
19.33 $
Buy Now
LT1933IS6 24 Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1933ES6#TRMPBF 20
14.08 $
33.84 $
103.35 $
252.97 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1933ES6TRMPBF 370

element14 Asia-Pacific

ProductStockPriceBuy
LT1933ES6#TRMPBF 1850
15.78 $
255.16 $
1003.52 $
2503.23 $
Buy Now
LT1933ES6#TRMPBF 1850
15.78 $
255.16 $
1003.52 $
2503.23 $
Buy Now
LT1933IS6#PBF 564
15.76 $
253.94 $
1003.23 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1933ES6#TRMPBF 3
13.61 GBP
103.23 GBP
252.89 GBP
502.43 GBP
1001.97 GBP
Buy Now
LT1933IS6#PBF 512
13.58 GBP
103.21 GBP
252.28 GBP
502.22 GBP
1002.11 GBP
Buy Now

Schukat electronic

ProductStockPriceBuy
LT1933ES6#TRMPBF 318
14.75 €
103.25 €
502.75 €
1002.65 €
Buy Now

Chip1Stop

ProductStockPriceBuy
LT1933IS6#TRMPBF 740
5002.54 $
1002.67 $
15.13 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT1933ES6#TRPBF 25000
25002.80 $
250002.64 $
Buy Now

RS Components

ProductStockPriceBuy
LT1933ES6#TRMPBF 820
102.55 GBP
252.52 GBP
502.49 GBP
752.45 GBP
Buy Now
LT1933IS6#TRMPBF 98
23.54 GBP
103.47 GBP
203.43 GBP
303.39 GBP
503.34 GBP
Buy Now
LT1933IS6#TRMPBF 446
103.47 GBP
203.43 GBP
303.39 GBP
503.34 GBP
Buy Now
LT1933ES6#TRMPBF 209
14.02 GBP
102.55 GBP
252.52 GBP
502.49 GBP
752.45 GBP
Buy Now

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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