LT1959 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT1959 is a 15.00 V non-sync Buck Converter from with 3.60 A output current. The maximum 15.00 V input voltage can be regulated down into a 1.21 V to 15.00 V output voltage.

It requires are a typical inductor size of 5.00 µH, a typical external component count of 9 and achieves a peak efficiency of 88 %. Further LT1959 characteristics are a fixed 500 kHz switching frequency and 2 available package option(s): SO-8 DD-7 .

For the LT1959 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. 4.00 V
V-IN max. 15.00 V
I-OUT? 3.60 A
V-OUT min. 1.21 V
V-OUT max. 15.00 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. yes
Frequency adj./ ext.clock min. 580 kHz
Frequency adj./ ext.clock max 1000 kHz
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 5400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 5.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 88 %
Component count min. 9
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP
TO
DDPAK DD-7

LT1959 Datasheet

Link to the most up-to-date LT1959 datasheet and the product page for EVM, tools and support information.

LT1959

LT1959 Sample stock and distributor price breaks

LT1959 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 6

Chip One Stop (3)

ProductStockPriceBuy
LT1959CS8#PBF98
110.00 USD
107.97 USD
505.74 USD
Buy Now
LT1959CS8#PBF14
19.17 USD
106.51 USD
Buy Now
LT1959IR#PBF16
111.80 USD
510.40 USD
108.47 USD
Buy Now

Digi-Key (6)

ProductStockPriceBuy
LT1959CS8#PBF659
19.61 USD
256.38 USD
1004.78 USD
Buy Now
LT1959CR#PBF764
110.25 USD
256.81 USD
1005.10 USD
Buy Now
LT1959IR#PBF848
111.79 USD
257.83 USD
1005.87 USD
Buy Now
DC355A2
1160.17 USD
Buy Now
DC356A4
1160.17 USD
Buy Now
LT1959IS8#PBF1
111.02 USD
257.32 USD
1005.49 USD
Buy Now
LT1959CS8#TRPBF0
25004.89 USD
Buy Now
LT1959CS8#TRPBF0
110.91 USD
259.74 USD
1005.86 USD
2505.37 USD
Buy Now
LT1959CS8#TRPBF0
110.91 USD
259.74 USD
1005.86 USD
2505.37 USD
Buy Now
LT1959CR#TRPBF0
7505.20 USD
Buy Now
LT1959IS8#TRPBF0
25005.59 USD
Buy Now
LT1959IR#TRPBF0
7505.97 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LT1959CS8#PBF35Buy Now

Farnell Element14 (1)

ProductStockPriceBuy
LT1959CR#PBF0Buy Now
LT1959CS8#PBF35Buy Now
LT1959IR#PBF0Buy Now
LT1959IS8#PBF0Buy Now

Mouser Electronics (3)

ProductStockPriceBuy
LT1959CS8#PBF154
19.66 USD
108.85 USD
256.40 USD
1004.90 USD
Buy Now
LT1959CR#PBF154
110.30 USD
109.44 USD
256.83 USD
1005.22 USD
Buy Now
LT1959IR#PBF79
111.85 USD
1010.86 USD
257.86 USD
1005.99 USD
Buy Now
LT1959IS8#PBF0
111.07 USD
1010.15 USD
257.34 USD
1005.62 USD
Buy Now
LT1959IS8#TRPBF0
25005.68 USD
Buy Now
LT1959IR#TRPBF0
7506.14 USD
Buy Now
LT1959CS8#TRPBF0
25004.96 USD
Buy Now
LT1959CR#TRPBF0
110.56 USD
109.68 USD
257.00 USD
1005.36 USD
Buy Now

RS Components (2)

ProductStockPriceBuy
LT1959IR#PBF46Buy Now
LT1959IS8#PBF9Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 11

Arrow Electronics

ProductStockPriceBuy
LT1959IS8#TRPBF 1337
1005.48 $
Buy Now
LT1959IS8#PBF 211
1005.38 $
15.98 $
Buy Now
LT1959IR#PBF 185
1005.75 $
16.39 $
Buy Now
LT1959CR#PBF 48
1005.00 $
15.61 $
Buy Now
LT1959CR#TRPBF 22
1005.10 $
Buy Now
LT1959CS8#PBF 14
1004.69 $
15.19 $
Buy Now
LT1959IR#PBF 4
1005.75 $
16.39 $
Buy Now

Digi-Key

ProductStockPriceBuy
LT1959IR#PBF 848
1005.01 €
256.68 €
110.06 €
Buy Now
LT1959CR#PBF 764
1004.35 €
255.81 €
18.75 €
Buy Now
LT1959CS8#PBF 659
1004.08 €
255.45 €
18.20 €
Buy Now
DC356A 4
1136.71 €
Buy Now
DC355A 2
1136.71 €
Buy Now
LT1959IS8#PBF 1
1004.68 €
256.25 €
19.41 €
Buy Now
LT1959CS8#TRPBF 0
25004.17 €
Buy Now
LT1959CS8#TRPBF 0
2504.59 €
1005.00 €
258.31 €
19.31 €
Buy Now
LT1959CS8#TRPBF 0
2504.59 €
1005.00 €
258.31 €
19.31 €
Buy Now
LT1959CR#TRPBF 0
7504.44 €
Buy Now
LT1959IS8#TRPBF 0
25004.77 €
Buy Now
LT1959IR#TRPBF 0
7505.09 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT1959IR#PBF 185
1005.75 $
66.39 $
Buy Now
LT1959CR#PBF 48
1005.00 $
75.61 $
Buy Now
LT1959CS8#PBF 14
75.19 $
Buy Now
LT1959IR#PBF 4
16.39 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1959CS8#PBF 154
19.63 $
108.82 $
256.38 $
1004.78 $
Buy Now
LT1959CR#PBF 154
110.27 $
109.41 $
256.81 $
1005.10 $
Buy Now
LT1959IR#PBF 79
111.81 $
1010.82 $
257.83 $
1005.86 $
Buy Now
LT1959IS8#PBF 0
111.04 $
1010.12 $
257.32 $
1005.49 $
Buy Now
LT1959IS8#TRPBF 0
25005.59 $
Buy Now
LT1959IR#TRPBF 0
7505.97 $
Buy Now
LT1959CS8#TRPBF 0
25004.89 $
Buy Now
LT1959IS8 0 Buy Now
LT1959IR 0 Buy Now
LT1959CS8 0 Buy Now
LT1959CR 0 Buy Now
LT1959CR#TRPBF 0 Buy Now
LT1959CR#TR 0 Buy Now
LT1959IR#TR 0 Buy Now
LT1959IS8#TR 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1959CR 29 Buy Now
LT1959CR 21 Buy Now
LT1959CS8#TRPBF 81 Buy Now

Quest Components

ProductStockPriceBuy
LT1959CS8 12
54.92 $
26.56 $
19.84 $
Buy Now
LT1959IS8#PBF 12
810.91 $
311.46 $
112.28 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT1959CS8#PBF 35
111.72 $
257.78 $
1006.11 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1959CS8#PBF 35
17.28 GBP
106.66 GBP
254.78 GBP
504.58 GBP
1004.37 GBP
Buy Now

Chip One Exchange

ProductStockPriceBuy
LT1959IS8#PBF 98

Chip1Stop

ProductStockPriceBuy
LT1959CS8#PBF 98
505.74 $
107.97 $
110.00 $
Buy Now
LT1959IR#PBF 16
108.47 $
510.40 $
111.80 $
Buy Now

RS Components

ProductStockPriceBuy
LT1959IS8#PBF 9
108.16 GBP
257.30 GBP
506.87 GBP
756.78 GBP
Buy Now
LT1959IR#PBF 46
108.58 GBP
258.26 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1959. Optional, compare LT1959 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MP2380 MP2380 product overviewMP2380 product overview MPS SOIC-8
0% MP2482 MP2482 product overviewMP2482 product overview MPS SOIC-8E
0% MP28490 MP28490 product overviewMP28490 product overview MPS SOIC-8E
0% LM2677 LM2677 product overviewLM2677 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
25% LT3430 LT3430 product overviewLT3430 product overview Linear Technology TSSOP-16
25% LT3430-1 LT3430-1 product overviewLT3430-1 product overview Linear Technology TSSOP-16
25% LT3431 LT3431 product overviewLT3431 product overview Linear Technology TSSOP-16
25% MAX16907 MAX16907 product overviewMAX16907 product overview Maxim TSSOP-EP-16, TQFN-16
25% MP2377 MP2377 product overviewMP2377 product overview MPS SOIC-8
25% NJW4154 NJW4154 product overviewNJW4154 product overview New Japan Radio TO252-5, HSOP-8
25% BD9876 BD9876 product overviewBD9876 product overview Rohm HTSOP-8
25% A5975D A5975D product overviewA5975D product overview ST SO-8
25% A7986A A7986A product overviewA7986A product overview ST HSOP-8
25% LM2670 LM2670 product overviewLM2670 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
50% IFX91041EJ V IFX91041EJ V product overviewIFX91041EJ V product overview Infineon PG-DSO-8
50% TLE8366 TLE8366 product overviewTLE8366 product overview Infineon DSO-8
50% IXD3250-3 IXD3250-3 product overviewIXD3250-3 product overview IXYS SOP-8
50% IXD3250-5 IXD3250-5 product overviewIXD3250-5 product overview IXYS SOP-8
50% IXD3251-3 IXD3251-3 product overviewIXD3251-3 product overview IXYS SOP-8
50% IXD3251-5 IXD3251-5 product overviewIXD3251-5 product overview IXYS SOP-8
50% LT1765 LT1765 product overviewLT1765 product overview Linear Technology TSSOP-16, SO-8
50% LT3434 LT3434 product overviewLT3434 product overview Linear Technology TSSOP-16
50% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16
50% MAX16936 MAX16936 product overviewMAX16936 product overview Maxim TQFN-32
50% MAX16974 MAX16974 product overviewMAX16974 product overview Maxim TSSOP-EP-16, TQFN-16
50% MAX16977 MAX16977 product overviewMAX16977 product overview Maxim TSSOP-EP-16, TQFN-16
50% MAX5088 MAX5088 product overviewMAX5088 product overview Maxim TQFN-16
50% MAX5089 MAX5089 product overviewMAX5089 product overview Maxim TQFN-16
50% MAX5090 MAX5090 product overviewMAX5090 product overview Maxim TQFN-16
50% MP1580 MP1580 product overviewMP1580 product overview MPS PDIP-8, SOIC-8
50% MP2354 MP2354 product overviewMP2354 product overview MPS SOIC-8
50% MP2362 MP2362 product overviewMP2362 product overview MPS
50% NCV890201 NCV890201 product overviewNCV890201 product overview ON Semiconductor DFN-10
50% NCV890231 NCV890231 product overviewNCV890231 product overview ON Semiconductor SOIC-8
50% A5973D A5973D product overviewA5973D product overview ST SO-8
50% A5974AD A5974AD product overviewA5974AD product overview ST SO-8
50% A5974D A5974D product overviewA5974D product overview ST SO-8
50% A5975AD A5975AD product overviewA5975AD product overview ST SO-8
50% A7985A A7985A product overviewA7985A product overview ST HSOP-8
50% B5973D B5973D product overviewB5973D product overview ST SO-8
50% L5973D L5973D product overviewL5973D product overview ST HSOP-8
50% LM27342 LM27342 product overviewLM27342 product overview Texas Instruments SON-10, MSOP-10
50% LM27342-Q1 LM27342-Q1 product overviewLM27342-Q1 product overview Texas Instruments SON-10, MSOP-10
50% LMR12020 LMR12020 product overviewLMR12020 product overview Texas Instruments SON-10
50% XC9250-3 XC9250-3 product overviewXC9250-3 product overview Torex SOP-8
50% XC9250-5 XC9250-5 product overviewXC9250-5 product overview Torex SOP-8
50% XC9251-3 XC9251-3 product overviewXC9251-3 product overview Torex SOP-8
50% XC9251-5 XC9251-5 product overviewXC9251-5 product overview Torex SOP-8
50% XC9270-C XC9270-C product overviewXC9270-C product overview Torex SOP-8
50% XC9270-D XC9270-D product overviewXC9270-D product overview Torex SOP-8
50% XC9271-C XC9271-C product overviewXC9271-C product overview Torex SOP-8
50% XC9271-D XC9271-D product overviewXC9271-D product overview Torex SOP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1959.

V-IN max. 15 V, I-OUT 3.6 A, V-OUT min. 1.21 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054015 1.5 4.3 6.9 15.00 5 x 5 x 4
74404054022 2.2 3.8 5.3 19.00 5 x 5 x 4
74404063015 1.5 4.6 6.6 13.00 6 x 6 x 2.8
74404063022 2.2 3.8 5.6 20.00 6 x 6 x 2.8
74404064018 1.8 5.0 8.4 12.00 6 x 6 x 4.5
74404064022 2.2 4.6 7.4 14.00 6 x 6 x 4.5
74404084015 1.5 5.7 9.0 10.00 8 x 8 x 4.2
74404084022 2.2 5.2 7.8 12.00 8 x 8 x 4.2
7440650015 1.5 7.2 7.5 7.30 10 x 10 x 3.1
7440650022 2.2 6.2 5.9 11.00 10 x 10 x 3.1
7440660022 2.2 6.7 6.8 7.70 10 x 10 x 4.1
744071022 2.2 5.4 6.3 10.00 8 x 8 x 4.6
744310200 2.0 6.5 9.0 14.20 7 x 6.9 x 3.3
744314200 2.0 11.5 9.0 5.85 7 x 6.9 x 5
744316150 1.5 9.0 9.0 8.15 5.5 x 5.3 x 4.3
744316220 2.2 7.5 7.5 11.30 5.5 x 5.3 x 4.3
74437324015 1.5 3.8 8.0 34.80 4.45 x 4.06 x 2
74438336015 1.5 3.7 4.5 33.00 3 x 3 x 2
74438356015 1.5 5.8 7.8 16.00 4.1 x 4.1 x 2.1
74438356018 1.8 4.6 6.5 24.50 4.1 x 4.1 x 2.1
74438356022 2.2 4.7 6.2 29.00 4.1 x 4.1 x 2.1
744732015 1.5 7.0 9.0 7.00 9 x 9 x 8
7447713022 2.2 5.1 8.5 16.80 10 x 10 x 3
744772022 2.2 6.0 8.0 7.25 7.8 x 7.8 x 10
744777002 2.2 6.0 6.5 13.00 7.3 x 7.3 x 4.5
74477790015 1.5 4.3 7.3 15.00 7.3 x 7.3 x 4.5
7447779002 2.2 4.2 6.0 16.00 7.3 x 7.3 x 4.5
744778002 2.2 4.0 4.8 14.00 7.3 x 7.3 x 3.4
7447789002 2.2 4.0 4.8 19.00 7.3 x 7.3 x 3.5
784774022 2.2 4.6 8.2 26.00 5.2 x 5.8 x 4.85
784775022 2.2 6.0 6.0 8.00 7 x 7.8 x 5.5
784776022 2.2 7.0 8.0 7.00 9 x 10 x 5.9
0Results
Module
Fresh Search
Replacement Search with
0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
add to Compare
Last Tweets
Meet us at the Embedded Show in Nuremberg 27-28.2.
Meet us at this weeks PCIM tradeshow in Nuremberg, Tue+Wed, Details under info@dcdcselector.com
With the help of #OEMsecrets we show for all Selectors and products worldwide distributor inventory and prices. https://t.co/udaDPmshky
Feedback
ajax-loader.gif
Loading. Please wait.