LTC3408 Buck Converter overview

Description

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LTC3408 is a 5.00 V sync Buck Converter from with 0.60 A output current. The maximum 5.00 V input voltage can be regulated down into a 0.30 V to 3.50 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 3 and achieves a peak efficiency of 95 %. Further LTC3408 characteristics are a fixed 1500 kHz switching frequency and 1 available package option(s): DFN-8 .

For the LTC3408 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. 2.50 V
V-IN max. 5.00 V
I-OUT? 0.60 A
V-OUT min. 0.30 V
V-OUT max. 3.50 V
V-OUT adjustable V
V-OUT programmable yes
sync/non-sync sync
Frequency typ. 1500 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 2500 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.70 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 95 %
Component count min. 3
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-8
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3408 Datasheet

Link to the most up-to-date LTC3408 datasheet and the product page for EVM, tools and support information.

LTC3408

LTC3408 Sample stock and distributor price breaks

LTC3408 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 3

ARROW-NAC (1)

ProductStockPriceBuy
LTC3408EDD#PBF726
12.64 USD
1002.18 USD
Buy Now

Chip-One-Stop (1)

ProductStockPriceBuy
LTC3408EDD#PBF20
14.03 USD
103.43 USD
Buy Now

DIGI-KEY (1)

ProductStockPriceBuy
LTC3408EDD#PBF820
13.72 USD
252.64 USD
1002.18 USD
Buy Now
LTC3408EDD#TRPBF0
25002.28 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3408 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3408. Optional, compare LTC3408 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3403 LTC3403 product overviewLTC3403 product overview Linear Technology DFN-8
10% FAN5902 FAN5902 product overviewFAN5902 product overview Fairchild MLP-12, CSP-12
10% MAX8506 MAX8506 product overviewMAX8506 product overview Maxim TQFN-16
10% MAX8507 MAX8507 product overviewMAX8507 product overview Maxim TQFN-16
10% MAX8581 MAX8581 product overviewMAX8581 product overview Maxim TDFN-EP-10
10% MAX8582 MAX8582 product overviewMAX8582 product overview Maxim TDFN-EP-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3408.

V-IN max. 5 V, I-OUT 0.6 A, V-OUT min. 0.3 V, Frequency typ. 1500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744030001 1.2 1.0 1.1 95.00 3.3 x 3.5 x 1.05
744031001 1.5 1.8 1.6 40.00 3.8 x 3.8 x 1.8
74479775215 1.5 1.1 0.8 160.00 2 x 1.2 x 1.2
74479776215 1.5 1.3 0.8 110.00 2 x 1.6 x 1
74479787215A 1.5 1.9 1.1 70.00 2.5 x 2 x 1
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