LM27342-Q1 Buck Converter overview

Description

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LM27342-Q1 is a 20.00 V non-sync Buck Converter from with 2.00 A output current. The maximum 20.00 V input voltage can be regulated down into a 1.00 V to 18.00 V output voltage.

It requires are a typical inductor size of 1.50 µH, a typical external component count of 7 and achieves a peak efficiency of 90 %. Further LM27342-Q1 characteristics are a fixed 2000 kHz switching frequency and 2 available package option(s): MSOP-10 SON-10 .

For the LM27342-Q1 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. 3.00 V
V-IN max. 20.00 V
I-OUT? 2.00 A
V-OUT min. 1.00 V
V-OUT max. 18.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 2000 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 1000 kHz
Frequency adj./ ext.clock max 2350 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. -2400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 165 °C
Inductor size typ. 1.50 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 yes
Light-Load-Mode no
Topology Buck
Peak Efficiency 90 %
Component count min. 7
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN SON-10
SO/SOIC
SOP
DIP
TO
DDPAK

LM27342-Q1 Datasheet

Link to the most up-to-date LM27342-Q1 datasheet and the product page for EVM, tools and support information.

LM27342-Q1

LM27342-Q1 Sample stock and distributor price breaks

LM27342-Q1 prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with LM27342 stock available

Available Distributors with stock: 0

no online Distributor with LM27342 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LM27342-Q1. Optional, compare LM27342-Q1 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MAX16907 MAX16907 product overviewMAX16907 product overview Maxim TSSOP-EP-16, TQFN-16
0% MAX16974 MAX16974 product overviewMAX16974 product overview Maxim TSSOP-EP-16, TQFN-16
0% MAX16977 MAX16977 product overviewMAX16977 product overview Maxim TSSOP-EP-16, TQFN-16
0% NCV890201 NCV890201 product overviewNCV890201 product overview ON Semiconductor DFN-10
0% A7985A A7985A product overviewA7985A product overview ST HSOP-8
0% A7986A A7986A product overviewA7986A product overview ST HSOP-8
10% TLE8366 TLE8366 product overviewTLE8366 product overview Infineon DSO-8
25% CS51411 CS51411 product overviewCS51411 product overview ON Semiconductor SOIC-8, DFN-18
25% CS51413 CS51413 product overviewCS51413 product overview ON Semiconductor SOIC-8, DFN-18
25% NCV51411 NCV51411 product overviewNCV51411 product overview ON Semiconductor SOIC-8, DFN-18
25% NCV8842 NCV8842 product overviewNCV8842 product overview ON Semiconductor DFN-18
25% NCV8843 NCV8843 product overviewNCV8843 product overview ON Semiconductor SOIC-8, DFN-18
25% LM27341-Q1 LM27341-Q1 product overviewLM27341-Q1 product overview Texas Instruments SON-10, MSOP-10
50% MAX16975 MAX16975 product overviewMAX16975 product overview Maxim QSOP-EP-16
50% NCV890101 NCV890101 product overviewNCV890101 product overview ON Semiconductor DFN-10
50% NCV890131 NCV890131 product overviewNCV890131 product overview ON Semiconductor DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LM27342-Q1.

V-IN max. 20 V, I-OUT 2 A, V-OUT min. 1 V, Frequency typ. 2000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500072 0.7 3.0 4.0 23.50 2.8 x 2.8 x 3
744040240068 0.7 2.5 3.5 35.00 2.5 x 2 x 1.2
74404200056 0.6 3.1 3.0 19.00 4.8 x 4.8 x 2
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
74406800056 0.6 3.4 4.0 22.00 8 x 8 x 1.2
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
744383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
744383230082 0.8 2.6 4.3 53.00 2.5 x 2 x 1
744383240056 0.6 3.3 6.0 37.00 2.5 x 2 x 1.2
744383240068 0.7 3.2 5.9 45.00 2.5 x 2 x 1.2
744383430056 0.6 2.1 5.0 56.00 2.5 x 1.6 x 0.6
744383430068 0.7 2.0 4.7 65.00 2.5 x 1.6 x 0.6
74479276168 0.7 2.5 3.4 45.00 2 x 1.6 x 1
784383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
784383230082 0.8 2.6 4.3 53.00 2.5 x 2 x 1
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