LA5744 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LA5744 is a 28.00 V non-sync Buck Converter from with 2.50 A output current. The maximum 28.00 V input voltage can be regulated down into a 1.23 V to 28.00 V output voltage.

It requires are a typical inductor size of 22.00 µH, a typical external component count of 7 and achieves a peak efficiency of 83 %. Further LA5744 characteristics are a fixed 300 kHz switching frequency and 1 available package option(s): 220-5HK .

For the LA5744 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. 4.50 V
V-IN max. 28.00 V
I-OUT? 2.50 A
V-OUT min. 1.23 V
V-OUT max. 28.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 300 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
Quiescent current max. 5000 µA
Operating min. -30 °C
Operating max. 125 °C
Junction min.
Junction max.
thermal shutdown typ. 165 °C
Inductor size typ. 22.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 83 %
Component count min. 7
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP
DIP
TO 220-5HK
DDPAK

LA5744 Datasheet

Link to the most up-to-date LA5744 datasheet and the product page for EVM, tools and support information.

LA5744

LA5744 Sample stock and distributor price breaks

LA5744 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LA5744 stock available

Available Distributors with stock: 6

Newark element14

ProductStockPriceBuy
LA5744TP-TL-E 1
1000.81 $
101.06 $
11.24 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LA5744TPGEVB 6
162.50 $
Buy Now
LA5744-HK-E 114
12.83 $
102.40 $
1001.92 $
5001.68 $
10001.40 $
25001.30 $
50001.25 $
Buy Now
LA5744TP-TL-E 0 Buy Now
LA5744MP-DL-E 0 Buy Now
LA5744MP-E 0 Buy Now
LA5744TP-FA-E 0 Buy Now
show stock=0hide stock=0

Rochester Electronics

ProductStockPriceBuy
LA5744-HK-E 39614
10001.37 $
5001.44 $
1001.50 $
251.56 $
11.68 $
Buy Now
LA5744MP-DL-E 240873
10000.65 $
5000.68 $
1000.71 $
250.74 $
10.79 $
Buy Now
LA5744-HK-E 180346
10001.37 $
5001.44 $
1001.50 $
251.56 $
11.68 $
Buy Now
LA5744MP-DL-E 41000
10000.65 $
5000.68 $
1000.71 $
250.74 $
10.79 $
Buy Now
LA5744MP-E 50
10001.24 $
5001.30 $
1001.36 $
251.41 $
11.52 $
Buy Now
LA5744TP-FA-E 1086
10000.70 $
5000.73 $
1000.76 $
250.80 $
10.86 $
Buy Now

Bristol Electronics

ProductStockPriceBuy
LA5744-HK-E 1100 Buy Now
LA5744-HK-E 10800 Buy Now
LA5744TPGEVB 2 Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LA5744TP-TL-E 1
10000.80 SGD
5000.87 SGD
2501.06 SGD
1001.29 SGD
101.89 SGD
12.21 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LA5744TP-TL-E 1
2500.58 GBP
1000.62 GBP
500.72 GBP
250.81 GBP
10.93 GBP
Buy Now

Available Distributors without stock: 3

Digi-Key

ProductStockPriceBuy
LA5744TPGEVB 0
355.46 €
Buy Now
LA5744-HK-E 0 Buy Now
LA5744MP-DL-E 0 Buy Now
LA5744TP-TL-E 0 Buy Now
LA5744MP-E 0 Buy Now
LA5744TP-FA-E 0 Buy Now

Avnet

ProductStockPriceBuy
LA5744MP-E 0
2661.19 $
2681.19 $
5341.19 $
13301.09 $
26601.09 $
Buy Now
LA5744-HK-E 0
2411.29 $
2431.29 $
4841.29 $
12051.29 $
24101.19 $
Buy Now
LA5744TPGEVB 0
155.49 $
Buy Now
LA5744TP-FA-E 0
4720.69 $
4740.69 $
9460.68 $
23600.67 $
47200.65 $
Buy Now
LA5744MP-DL-E 0
5110.64 $
5130.64 $
10240.63 $
25550.62 $
51100.60 $
Buy Now

Allied Electronics & Automation

ProductStockPriceBuy
LA5744TP-TL-E 0
500.55 $
1500.54 $
2500.53 $
5000.52 $

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LA5744. Optional, compare LA5744 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% A4403 A4403 product overviewA4403 product overview Allegro QFN-16
0% MP1593 MP1593 product overviewMP1593 product overview MPS SOIC-8
0% MP2365 MP2365 product overviewMP2365 product overview MPS SOIC-8
0% MP2372 MP2372 product overviewMP2372 product overview MPS SOIC-8
0% MP24943 MP24943 product overviewMP24943 product overview MPS SOIC-8E
0% MP28373 MP28373 product overviewMP28373 product overview MPS SOIC-8E
0% LA5744MP LA5744MP product overviewLA5744MP product overview ON Semiconductor SMP-5
0% LA5744TP LA5744TP product overviewLA5744TP product overview ON Semiconductor TP5HFA
0% LA5756 LA5756 product overviewLA5756 product overview ON Semiconductor 220-5HK
0% LA5759 LA5759 product overviewLA5759 product overview ON Semiconductor 220-5HK
0% LA5774 LA5774 product overviewLA5774 product overview ON Semiconductor 220-5HK
0% LA5774MP LA5774MP product overviewLA5774MP product overview ON Semiconductor SMP-5
0% LV58063MC LV58063MC product overviewLV58063MC product overview ON Semiconductor SOP-8
0% LV58063MX LV58063MX product overviewLV58063MX product overview ON Semiconductor MFP-8
0% LM22673 LM22673 product overviewLM22673 product overview Texas Instruments TO263-7, SO-8
0% LM22679 LM22679 product overviewLM22679 product overview Texas Instruments TO263-7
0% LM2599 LM2599 product overviewLM2599 product overview Texas Instruments DDPAK-7, TO-220-7
0% LM2673 LM2673 product overviewLM2673 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
0% LM2679 LM2679 product overviewLM2679 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
10% LT3434 LT3434 product overviewLT3434 product overview Linear Technology TSSOP-16
10% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16
10% MP2363 MP2363 product overviewMP2363 product overview MPS PDIP-8, SOIC-8
25% ISL8500 ISL8500 product overviewISL8500 product overview Intersil DFN-12
25% IXD3250-3 IXD3250-3 product overviewIXD3250-3 product overview IXYS SOP-8
25% IXD3250-5 IXD3250-5 product overviewIXD3250-5 product overview IXYS SOP-8
25% IXD3251-3 IXD3251-3 product overviewIXD3251-3 product overview IXYS SOP-8
25% IXD3251-5 IXD3251-5 product overviewIXD3251-5 product overview IXYS SOP-8
25% MAX5090 MAX5090 product overviewMAX5090 product overview Maxim TQFN-16
25% MP1583 MP1583 product overviewMP1583 product overview MPS PDIP-8, SOIC-8
25% MP2355 MP2355 product overviewMP2355 product overview MPS SOIC-8
25% MP2358 MP2358 product overviewMP2358 product overview MPS SOIC-8, QFN-10
25% MP2361 MP2361 product overviewMP2361 product overview MPS QFN-10, MSOP-10
25% MP2492 MP2492 product overviewMP2492 product overview MPS SOIC-8E, QFN-10
25% MP2493 MP2493 product overviewMP2493 product overview MPS SOIC-8E
25% MP2494 MP2494 product overviewMP2494 product overview MPS SOIC-8E
25% MP2495 MP2495 product overviewMP2495 product overview MPS SOIC-16
25% LV5980MC LV5980MC product overviewLV5980MC product overview ON Semiconductor SOIC-8
25% LM2593HV LM2593HV product overviewLM2593HV product overview Texas Instruments TO-263, TO-220-7
25% R1243-A-B R1243-A-B product overviewR1243-A-B product overview Ricoh HSOP-8, DFN-10
25% R1243-C-D R1243-C-D product overviewR1243-C-D product overview Ricoh HSOP-8, DFN-10
25% XC9250-3 XC9250-3 product overviewXC9250-3 product overview Torex SOP-8
25% XC9250-5 XC9250-5 product overviewXC9250-5 product overview Torex SOP-8
25% XC9251-3 XC9251-3 product overviewXC9251-3 product overview Torex SOP-8
25% XC9251-5 XC9251-5 product overviewXC9251-5 product overview Torex SOP-8
25% XC9270-C XC9270-C product overviewXC9270-C product overview Torex SOP-8
25% XC9270-D XC9270-D product overviewXC9270-D product overview Torex SOP-8
25% XC9271-C XC9271-C product overviewXC9271-C product overview Torex SOP-8
25% XC9271-D XC9271-D product overviewXC9271-D product overview Torex SOP-8
50% AOZ1056AI AOZ1056AI product overviewAOZ1056AI product overview Alpha Omega SOIC-8
50% AP3201A AP3201A product overviewAP3201A product overview BCDSemi HMSOP-10
50% LT1976 LT1976 product overviewLT1976 product overview Linear Technology TSSOP-16
50% LT1977 LT1977 product overviewLT1977 product overview Linear Technology TSSOP-16
50% LT3503 LT3503 product overviewLT3503 product overview Linear Technology DFN-6
50% MAX5082 MAX5082 product overviewMAX5082 product overview Maxim TQFN-16
50% MAX5083 MAX5083 product overviewMAX5083 product overview Maxim TQFN-16
50% MP2364 MP2364 product overviewMP2364 product overview MPS
50% MP2490DQ MP2490DQ product overviewMP2490DQ product overview MPS SOIC-8, QFN-10
50% MP2490DS MP2490DS product overviewMP2490DS product overview MPS SOIC-8, QFN-10
50% MP2490CP MP2490CP product overviewMP2490CP product overview MPS SOIC-8, QFN-10
50% MP28369 MP28369 product overviewMP28369 product overview MPS MSOP-10
50% MP28372 MP28372 product overviewMP28372 product overview MPS TSSOP-20, SOIC-16
50% MP29373 MP29373 product overviewMP29373 product overview MPS TSSOP-20
50% MPQ2490 MPQ2490 product overviewMPQ2490 product overview MPS QFN-10
50% BD9325 BD9325 product overviewBD9325 product overview Rohm SOP-8
50% BD9328 BD9328 product overviewBD9328 product overview Rohm HTSOP-8
50% BD9E151 BD9E151 product overviewBD9E151 product overview Rohm VSON-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LA5744.

V-IN max. 28 V, I-OUT 2.5 A, V-OUT min. 1.23 V, Frequency typ. 300 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054047 4.7 3.0 3.8 30.00 5 x 5 x 4
74404063047 4.7 3.1 3.3 30.00 6 x 6 x 2.8
74404064047 4.7 3.3 5.5 26.00 6 x 6 x 4.5
74404084047 4.7 4.1 6.5 19.00 8 x 8 x 4.2
7440650047 4.7 4.6 4.2 16.50 10 x 10 x 3.1
7440660035 3.5 5.8 6.4 11.50 10 x 10 x 4.1
744066005 5.0 4.9 5.5 14.50 10 x 10 x 4.1
7440660062 6.2 4.3 4.5 16.50 10 x 10 x 4.1
744071039 3.9 4.9 4.5 13.00 8 x 8 x 4.6
744071047 4.7 4.8 4.3 17.00 8 x 8 x 4.6
744071056 5.6 4.0 4.0 20.00 8 x 8 x 4.6
744314490 4.9 6.5 6.5 14.50 7 x 6.9 x 5
744316470 4.7 4.6 4.7 24.50 5.5 x 5.3 x 4.3
744316560 5.6 4.5 4.6 28.50 5.5 x 5.3 x 4.3
74437336056 5.6 3.0 6.0 55.00 5.7 x 5.2 x 3
74438356047 4.7 2.9 4.7 63.00 4.1 x 4.1 x 2.1
74438356056 5.6 2.8 4.6 68.00 4.1 x 4.1 x 2.1
7447462047 4.7 4.2 3.7 19.00 5.5 x 5.5 x 8.5
7447471047 4.7 6.9 6.0 10.50 10.5 x 10.5 x 11.5
7447713047 4.7 4.0 6.0 26.00 10 x 10 x 3
7447715004 4.7 5.2 6.3 13.50 12 x 12 x 4.5
744772047 4.7 4.0 5.4 11.60 7.8 x 7.8 x 10
744777004 4.7 3.2 4.0 25.00 7.3 x 7.3 x 4.5
7447779004 4.7 3.2 4.4 28.00 7.3 x 7.3 x 4.5
7447789004 4.7 2.9 3.9 33.00 7.3 x 7.3 x 3.5
744787039 3.9 3.8 4.0 16.70 7.8 x 7 x 5
744787047 4.7 3.3 3.6 24.30 7.8 x 7 x 5
784774047 4.7 3.0 5.5 56.00 5.2 x 5.8 x 4.85
784775047 4.7 4.5 4.5 16.00 7 x 7.8 x 5.5
784775056 5.6 4.0 4.0 18.00 7 x 7.8 x 5.5
784776047 4.7 5.0 6.0 12.00 9 x 10 x 5.9
784776056 5.6 4.8 5.5 15.00 9 x 10 x 5.9
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