LT3470A Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3470A is a 40.00 V non-sync Buck Converter from with 0.25 A output current. The maximum 40.00 V input voltage can be regulated down into a 1.25 V to 16.00 V output voltage.

It requires are a typical inductor size of 33.00 µH, a typical external component count of 7 and achieves a peak efficiency of 81 %. Further LT3470A characteristics are a fixed 800 kHz switching frequency and 1 available package option(s): DFN-8 .

For the LT3470A 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. 40.00 V
I-OUT? 0.25 A
V-OUT min. 1.25 V
V-OUT max. 16.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 800 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. 18 µA
Operating min. -40 °C
Operating max. 150 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 33.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 81 %
Component count min. 7
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-8
SO/SOIC
SOP
DIP
TO
DDPAK

LT3470A Datasheet

Link to the most up-to-date LT3470A datasheet and the product page for EVM, tools and support information.

LT3470A

LT3470A Sample stock and distributor price breaks

LT3470A prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 2

Digi-Key (5)

ProductStockPriceBuy
LT3470AIDDB#TRMPBF1500
5003.43 USD
Buy Now
LT3470AIDDB#TRMPBF1636
16.87 USD
256.13 USD
1004.12 USD
2503.77 USD
Buy Now
LT3470AIDDB#TRMPBF1636
16.87 USD
256.13 USD
1004.12 USD
2503.77 USD
Buy Now
LT3470AEDDB#TRMPBF0
5002.99 USD
Buy Now
LT3470AEDDB#TRMPBF456
15.99 USD
255.35 USD
1003.59 USD
2503.29 USD
Buy Now
LT3470AEDDB#TRMPBF456
15.99 USD
255.35 USD
1003.59 USD
2503.29 USD
Buy Now
LT3470AEDDB#TRPBF0
25002.99 USD
Buy Now
LT3470AIDDB#TRPBF0
25003.43 USD
Buy Now
LT3470AHDDB#TRMPBF0
5003.71 USD
Buy Now
LT3470AHDDB#TRPBF0
25003.71 USD
Buy Now

Distrelec (1)

ProductStockPriceBuy
LT3470AIDDB#PBF238Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LT3470AEDDB#PBF0
14.19 USD
2002.99 USD
Buy Now
LT3470AEDDB#TRMPBF0
14.19 USD
5002.99 USD
Buy Now
LT3470AEDDB#TRPBF0
14.43 USD
25003.17 USD
Buy Now
LT3470AHDDB#TRMPBF0
15.20 USD
5003.71 USD
Buy Now
LT3470AIDDB#PBF0
16.11 USD
254.09 USD
1003.43 USD
Buy Now
LT3470AIDDB#TRMPBF0
14.81 USD
5003.43 USD
Buy Now
LT3470AIDDB#TRPBF0
15.08 USD
25003.64 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LT3470A stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3470A. Optional, compare LT3470A side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3437 LT3437 product overviewLT3437 product overview Linear Technology TSSOP-16, DFN-10
0% MAX5033 MAX5033 product overviewMAX5033 product overview Maxim PDIP-8, SOIC-8
10% LT3470 LT3470 product overviewLT3470 product overview Linear Technology DFN-8, TSOT23-5
50% MAX1836 MAX1836 product overviewMAX1836 product overview Maxim TDFN-EP-6, SOT23-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3470A.

V-IN max. 40 V, I-OUT 0.25 A, V-OUT min. 1.25 V, Frequency typ. 800 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744031150 15.0 0.6 0.5 255.00 3.8 x 3.8 x 1.8
744031220 22.0 0.5 0.4 410.00 3.8 x 3.8 x 1.8
744032150 15.0 0.3 0.7 800.00 3.2 x 2.5 x 2.3
74404024180 18.0 0.5 0.7 830.00 2.5 x 2 x 1.2
74404024220 22.0 0.5 0.6 910.00 2.5 x 2 x 1.2
74404032220 22.0 0.6 0.6 450.00 3 x 3 x 1.5
744042180 18.0 0.9 0.7 270.00 4.8 x 4.8 x 2
744042220 22.0 0.9 0.6 280.00 4.8 x 4.8 x 2
744043180 18.0 1.0 0.7 150.00 4.8 x 4.8 x 3
744043220 22.0 0.9 0.7 160.00 4.8 x 4.8 x 3
7440680220 22.0 0.9 0.7 350.00 8 x 8 x 1.2
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