LT3693 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3693 is a 36.00 V non-sync Buck Converter from with 3.50 A output current. The maximum 36.00 V input voltage can be regulated down into a 0.79 V to 30.00 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 10 and achieves a peak efficiency of 90 %. Further LT3693 characteristics are a adjustable 2400 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-10 .

For the LT3693 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? 3.50 A
V-OUT min. 0.79 V
V-OUT max. 30.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 2400 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 200 kHz
Frequency adj./ ext.clock max 2400 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. 1200 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 4.70 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 90 %
Component count min. 10
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN DFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

LT3693 Datasheet

Link to the most up-to-date LT3693 datasheet and the product page for EVM, tools and support information.

LT3693

LT3693 Sample stock and distributor price breaks

LT3693 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT3693 stock available

Available Distributors with stock: 7

Digi-Key

ProductStockPriceBuy
LT3693EMSE#TRPBF 9082
1004.92 €
255.95 €
18.96 €
Buy Now
LT3693EMSE#TRPBF 9082
1004.92 €
255.95 €
18.96 €
Buy Now
LT3693EMSE#TRPBF 7500
25004.45 €
Buy Now
LT3693EDD#TRPBF 5812
1004.81 €
255.82 €
18.75 €
Buy Now
LT3693EDD#TRPBF 5812
1004.81 €
255.82 €
18.75 €
Buy Now
LT3693EDD#TRPBF 5000
25004.34 €
Buy Now
LT3693EMSE#PBF 3094
1004.72 €
255.71 €
18.59 €
Buy Now
LT3693EDD#PBF 1791
1004.60 €
255.56 €
18.37 €
Buy Now
LT3693IDD#TRPBF 1356
1005.80 €
257.02 €
110.57 €
Buy Now
LT3693IDD#TRPBF 1356
1005.80 €
257.02 €
110.57 €
Buy Now
LT3693IDD#PBF 877
1005.53 €
256.69 €
110.06 €
Buy Now
LT3693IMSE#PBF 845
1005.66 €
256.85 €
110.32 €
Buy Now
LT3693IDD#TRPBF 0
25005.21 €
Buy Now
LT3693IMSE#TRPBF 0
25005.36 €
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LT3693IDD#PBF 2424
111.18 $
257.42 $
1006.14 $
2505.83 $
5005.70 $
10005.48 $
Buy Now
LT3693IMSE#PBF 867
111.46 $
257.61 $
1006.29 $
2505.98 $
5005.84 $
10005.62 $
Buy Now
LT3693EMSE#PBF 2108
19.55 $
256.34 $
1005.24 $
2504.98 $
5004.87 $
10004.68 $
Buy Now
LT3693EDD#PBF 1389
19.32 $
256.19 $
1005.11 $
2504.86 $
5004.75 $
10004.57 $
Buy Now
LT3693EMSE#TRPBF 1476
19.97 $
256.62 $
1005.47 $
2505.20 $
5005.08 $
25004.74 $
Buy Now
LT3693EDD#TRPBF 2500
19.74 $
256.46 $
1005.34 $
2505.07 $
5004.96 $
25004.63 $
Buy Now

Quest Components

ProductStockPriceBuy
LT3693EDD#PBF 3
26.90 $
110.35 $
Buy Now
LT3693EDD#TRPBF 800
3165.78 $
1416.35 $
111.55 $
Buy Now
LT3693IDD#TRPBF 50
345.20 $
46.00 $
112.00 $
Buy Now

RS Components

ProductStockPriceBuy
LT3693IMSE#PBF 0
15.92 GBP
2505.76 GBP
5005.62 GBP
Buy Now
LT3693IMSE#PBF 183
108.27 GBP
255.77 GBP
504.27 GBP
1004.10 GBP
Buy Now
LT3693IMSE#PBF 183
18.70 GBP
108.27 GBP
255.77 GBP
504.27 GBP
1004.10 GBP
Buy Now
LT3693EMSE#PBF 0
14.69 GBP
Buy Now
LT3693EMSE#PBF 9
16.67 GBP
106.34 GBP
505.00 GBP
1004.87 GBP
5004.75 GBP
Buy Now
LT3693EMSE#PBF 10
106.34 GBP
505.00 GBP
1004.87 GBP
5004.75 GBP
Buy Now
LT3693EDD#PBF 790
105.66 GBP
1214.68 GBP
2424.56 GBP
6053.55 GBP
Buy Now
LT3693EDD#PBF 790
15.95 GBP
105.66 GBP
1214.68 GBP
2424.56 GBP
6053.55 GBP
Buy Now
LT3693EDD#PBF 0
14.42 GBP
Buy Now
show stock=0hide stock=0

ComS.I.T.

ProductStockPriceBuy
LT3693IMSEPBF 150

Chip1Stop

ProductStockPriceBuy
LT3693IDD#PBF 30
105.09 $
15.68 $
Buy Now
LT3693EMSE#PBF 556
3004.92 $
1005.19 $
506.27 $
106.96 $
19.55 $
Buy Now

IChunt

ProductStockPriceBuy
LT3693IMSE#PBF 845
191.20 CNY
2560.53 CNY
10050.05 CNY
Buy Now
LT3693EMSE#PBF 3269
175.94 CNY
2550.44 CNY
10041.71 CNY
Buy Now
LT3693EMSE#TRPBF 7500
250042.26 CNY
Buy Now
LT3693EDD#TRPBF 5812
177.37 CNY
2551.40 CNY
10042.50 CNY
Buy Now

Available Distributors without stock: 2

element14 Asia-Pacific

ProductStockPriceBuy
LT3693EMSE#PBF 0
5007.45 SGD
2507.62 SGD
1008.02 SGD
259.69 SGD
114.59 SGD
Buy Now
LT3693EDD#PBF 0
5007.26 SGD
2507.44 SGD
1007.82 SGD
259.47 SGD
114.24 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT3693IDD#PBF 0
1004.43 GBP
255.16 GBP
17.83 GBP
Buy Now
LT3693EMSE#PBF 0
5003.79 GBP
2503.80 GBP
1003.81 GBP
503.82 GBP
253.83 GBP
106.07 GBP
16.61 GBP
Buy Now
LT3693EDD#PBF 0
5003.69 GBP
2504.14 GBP
1004.58 GBP
505.02 GBP
255.47 GBP
105.91 GBP
16.45 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3693. Optional, compare LT3693 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% A8583 A8583 product overviewA8583 product overview Allegro TSSOP-16
0% LT3680 LT3680 product overviewLT3680 product overview Linear Technology DFN-10, MSOP-10
0% TPS54541 TPS54541 product overviewTPS54541 product overview Texas Instruments SON-10
0% TPS54361 TPS54361 product overviewTPS54361 product overview Texas Instruments WSON-10
0% TPS54361-Q1 TPS54361-Q1 product overviewTPS54361-Q1 product overview Texas Instruments WSON-10
10% LT3972 LT3972 product overviewLT3972 product overview Linear Technology DFN-10, MSOP-10
10% TPS54362-Q1 TPS54362-Q1 product overviewTPS54362-Q1 product overview Texas Instruments HTSSOP-20
10% R1270S R1270S product overviewR1270S product overview Ricoh HSOP-18
25% MAX16909 MAX16909 product overviewMAX16909 product overview Maxim TSSOP-EP-16, TQFN-16
50% A8582 A8582 product overviewA8582 product overview Allegro TSSOP-16
50% A8584 A8584 product overviewA8584 product overview Allegro TSSOP-16
50% LT3480 LT3480 product overviewLT3480 product overview Linear Technology DFN-10, MSOP-10
50% LT3685 LT3685 product overviewLT3685 product overview Linear Technology DFN-10, MSOP-10
50% LT3975 LT3975 product overviewLT3975 product overview Linear Technology MSOP-16
50% LT3980 LT3980 product overviewLT3980 product overview Linear Technology DFN-14, MSOP-16
50% TPS54240 TPS54240 product overviewTPS54240 product overview Texas Instruments SON-10, MSOP-10
50% TPS54240-Q1 TPS54240-Q1 product overviewTPS54240-Q1 product overview Texas Instruments SON-10, MSOP-10
50% TPS54262-Q1 TPS54262-Q1 product overviewTPS54262-Q1 product overview Texas Instruments HTSSOP-20

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3693.

V-IN max. 36 V, I-OUT 3.5 A, V-OUT min. 0.79 V, Frequency typ. 2400 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500030 0.3 3.9 5.7 15.00 2.8 x 2.8 x 3
744040420033 0.3 4.5 7.6 13.00 4 x 4 x 1.8
74404300033 0.3 4.0 6.0 8.00 4.8 x 4.8 x 3
74406800024 0.2 4.1 5.8 15.00 8 x 8 x 1.2
744089420039 0.4 4.2 10.3 15.00 4.8 x 4.8 x 3.1
744089430039 0.4 4.2 9.3 13.50 4.8 x 4.8 x 4.1
744383360033 0.3 5.5 8.3 14.00 3 x 3 x 2
74479276124 0.2 3.6 5.4 19.00 2 x 1.6 x 1
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