ST1S14 Buck Converter overview

Description

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Category
Sub-Category

ST1S14 is a 48.00 V non-sync Buck Converter from with 3.00 A output current. The maximum 48.00 V input voltage can be regulated down into a 0.80 V to 48.00 V output voltage.

It requires are a typical inductor size of 8.50 µH, a typical external component count of 10 and achieves a peak efficiency of 93 %. Further ST1S14 characteristics are a fixed 850 kHz switching frequency and 1 available package option(s): HSOP-8 .

For the ST1S14 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. 5.50 V
V-IN max. 48.00 V
I-OUT? 3.00 A
V-OUT min. 0.80 V
V-OUT max. 48.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 850 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 yes
Quiescent current max. 2400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 150 °C
Inductor size typ. 8.50 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 93 %
Component count min. 10
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP HSOP-8
DIP
TO
DDPAK

ST1S14 Datasheet

Link to the most up-to-date ST1S14 datasheet and the product page for EVM, tools and support information.

ST1S14

ST1S14 Sample stock and distributor price breaks

ST1S14 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with ST1S14 stock available

Available Distributors with stock: 0

no online Distributor with ST1S14 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to ST1S14. Optional, compare ST1S14 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
10% NJW4154 NJW4154 product overviewNJW4154 product overview New Japan Radio TO252-5, HSOP-8
25% MAX16907 MAX16907 product overviewMAX16907 product overview Maxim TSSOP-EP-16, TQFN-16
25% MAX16936 MAX16936 product overviewMAX16936 product overview Maxim TQFN-32
50% ISL8500 ISL8500 product overviewISL8500 product overview Intersil DFN-12
50% LT3434 LT3434 product overviewLT3434 product overview Linear Technology TSSOP-16
50% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16
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% 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% MPQ2490 MPQ2490 product overviewMPQ2490 product overview MPS QFN-10
50% LM2593HV LM2593HV product overviewLM2593HV product overview Texas Instruments TO-263, TO-220-7
50% LM2599 LM2599 product overviewLM2599 product overview Texas Instruments DDPAK-7, TO-220-7

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ST1S14.

V-IN max. 48 V, I-OUT 3 A, V-OUT min. 0.8 V, Frequency typ. 850 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042010 1.0 3.2 4.8 27.00 4 x 4 x 1.8
74404052010 1.0 3.9 5.5 19.80 5 x 5 x 2
74404052012 1.2 3.6 5.2 23.40 5 x 5 x 2
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
744062001 1.0 4.8 4.6 10.00 6.8 x 6.8 x 2.5
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
7440700012 1.2 4.8 4.2 12.50 8 x 8 x 2
74408941010 1.0 3.0 5.4 29.50 4.8 x 4.8 x 2.1
744089420082 0.8 3.5 6.7 21.00 4.8 x 4.8 x 3.1
74408942012 1.2 3.2 5.5 22.00 4.8 x 4.8 x 3.1
744089430082 0.8 3.4 7.1 17.00 4.8 x 4.8 x 4.1
74408943010 1.0 3.3 6.5 19.00 4.8 x 4.8 x 4.1
744383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
74438336012 1.2 3.9 4.8 30.00 3 x 3 x 2
7447730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447785001 1.0 3.5 4.5 31.00 5.9 x 6.2 x 3.3
7447786001 1.0 5.0 5.5 28.00 5.9 x 6.2 x 5.1
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
744787012 1.2 4.9 6.0 8.50 7.8 x 7 x 5
74479299210 1.0 3.0 5.2 38.00 3.2 x 2.5 x 1.2
784383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
7847730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
784778010 1.0 3.5 7.0 30.00 7.3 x 7.3 x 3.5
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