LTC3118 Buck-Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LTC3118 is a 18.00 V, 2.00 A output current sync Buck-Boost Converter from . The 2.50 V to 18.00 V input range can be converted into a 2.00 V to 18.00 V output voltage.

The Buck-Boost Converter features fixed 1200 kHz switching frequency, requires a typical inductor size of 3.3 µH and provides a peak efficiency of 94 %. LTC3118 circuitry consists typically of 16 external components and is available in 2 package option(s): QFN-24 TSSOP-28 .

For LTC3118 replacement search, 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. 2.50 V
V-IN max. 18.00 V
I-OUT? 2.00 A
V-OUT min. 2.00 V
V-OUT max. 18.00 V
V-OUT fixed adjustable
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency adjustable min.
Frequency adjustable max.
ext.clock sync no
Frequency sync. min.
Frequency sync. max.
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. -50 µA
Operating min.
Operating max.
Junction min. -55 °C
Junction max. 150 °C
thermal shutdown typ. 165 °C
Inductor size typ. 3.3 µH
Automotive AEC-Q100 no
Light-Load Mode yes
Topology Buck-Boost
Peak Efficiency 94 %
Component count min. 16
current limit adjustable no
LBI/LBO no
Nr. of package options 2
CSP
SOT
MSOP
QFN QFN-24
SO/SOIC
SOP TSSOP-28

Charts and pictures

LTC3118 Datasheet

Link to the most up-to-date LTC3118 datasheet and the product page for EVM, tools and support information.

LTC3118

LTC3118 Distributor price breaks and sample stock

LTC3118 prices and available buy online distributors. Optional, check regional sources for price and inventory: for Russia via efind, for South Korea via ICPart, for Japan via ICBAIBAI, for China via IC5858 or International via IC2IC.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LTC3118 stock available

Available Distributors with stock: 0

no online Distributor with LTC3118 stock available

Equivalents and alternatives

The following Buck-Boost DC/DC Converter are similar to LTC3118. Optional, compare LTC3118 side-by-side with other selected Buck-Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
25% TPS63070 TPS63070 product overviewTPS63070 product overview Texas Instruments QFN-15
50% TPS63060 TPS63060 product overviewTPS63060 product overview Texas Instruments SON-10
50% TPS63060-EP TPS63060-EP product overviewTPS63060-EP product overview Texas Instruments SON-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3118.

V-IN max. 18 V, I-OUT 2 A, V-OUT min. 2 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042015 1.5 3.0 4.3 31.00 4 x 4 x 1.8
74404042022 2.2 2.2 3.4 42.00 4 x 4 x 1.8
74404052022 2.2 3.0 3.6 31.60 5 x 5 x 2
7440420018 1.8 2.4 2.4 40.00 4.8 x 4.8 x 2
7440430018 1.8 2.7 2.5 20.00 4.8 x 4.8 x 3
7440520018 1.8 2.6 3.0 30.00 5.8 x 5.8 x 2
744052002 2.5 2.4 2.7 20.00 5.8 x 5.8 x 2
744053002 2.6 3.0 2.7 20.00 5.8 x 5.8 x 3
7440620015 1.5 4.3 4.0 10.00 6.8 x 6.8 x 2.5
744062002 2.2 3.4 2.7 10.00 6.8 x 6.8 x 2.5
7440680017 1.7 2.5 2.4 41.00 8 x 8 x 1.2
7440690016 1.6 3.1 3.3 29.00 8 x 8 x 1.5
7440690022 2.2 2.8 2.9 35.00 8 x 8 x 1.5
7440700022 2.2 4.6 3.2 17.00 8 x 8 x 2
74408941022 2.2 2.1 3.6 66.08 4.8 x 4.8 x 2.1
74408942022 2.2 2.5 4.0 38.00 4.8 x 4.8 x 3.1
74408943022 2.2 3.0 4.6 26.00 4.8 x 4.8 x 4.1
74437321015 1.5 3.0 4.0 55.00 4.45 x 4.06 x 1.2
74437321022 2.2 2.2 4.8 69.20 4.45 x 4.06 x 1.2
74438324015 1.5 2.2 3.7 82.00 2.5 x 2 x 1.2
74438336015 1.5 3.7 4.5 33.00 3 x 3 x 2
74438336022 2.2 2.4 4.3 67.00 3 x 3 x 2
7447462022 2.2 6.3 4.3 10.00 5.5 x 5.5 x 8.5
744773018 1.8 2.7 3.6 28.00 4 x 4.5 x 3.5
744773022 2.2 2.5 3.4 34.00 4 x 4.5 x 3.5
744773027 2.7 2.3 3.0 39.00 4 x 4.5 x 3.5
744778002 2.2 4.0 4.8 14.00 7.3 x 7.3 x 3.4
7447785002 2.2 2.9 3.3 43.00 5.9 x 6.2 x 3.3
7447786002 2.2 3.5 4.0 40.00 5.9 x 6.2 x 5.1
7447789002 2.2 4.0 4.8 19.00 7.3 x 7.3 x 3.5
744787027 2.7 4.4 4.5 13.50 7.8 x 7 x 5
74479299222 2.2 2.1 3.5 85.00 3.2 x 2.5 x 1.2
784773018 1.8 2.7 3.6 28.00 4 x 4.5 x 3.5
784773022 2.2 2.5 3.4 34.00 4 x 4.5 x 3.5
0Results
Module
Fresh Search
Replacement Search with
0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
add to Compare
Feedback
ajax-loader.gif
Loading. Please wait.