LTC3448 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LTC3448 is a 5.50 V sync Buck Converter from with 0.60 A output current. The maximum 5.50 V input voltage can be regulated down into a 0.60 V to 4.80 V output voltage.

It requires are a typical inductor size of 2.20 µH, a typical external component count of 6 and achieves a peak efficiency of 93 %. Further LTC3448 characteristics are a adjustable 2250 kHz switching frequency and 2 available package option(s): MSOP-8 DFN-8 .

For the LTC3448 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. 5.50 V
I-OUT? 0.60 A
V-OUT min. 0.60 V
V-OUT max. 4.80 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 2250 kHz
Frequency adjustable
Frequency selectable 1500/2250 kHz
ext.clock sync. yes
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 400 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 150 °C
Inductor size typ. 2.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 93 %
Component count min. 6
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-8
QFN/DFN DFN-8
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3448 Datasheet

Link to the most up-to-date LTC3448 datasheet and the product page for EVM, tools and support information.

LTC3448

LTC3448 Sample stock and distributor price breaks

LTC3448 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LTC3448 stock available

Available Distributors without stock: 2

DIGI-KEY (0)

ProductStockPriceBuy
LTC3448EMS8E#PBF0
3502.41 USD
Buy Now
LTC3448EDD#PBF0
3632.41 USD
Buy Now
LTC3448EMS8E#TRPBF0
25002.51 USD
Buy Now
LTC3448EDD#TRPBF0
25002.51 USD
Buy Now

NEWARK (0)

ProductStockPriceBuy
LTC3448EMS8E#PBF0
14.13 USD
252.80 USD
1002.41 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3448 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3448. Optional, compare LTC3448 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3646-1 LTC3646-1 product overviewLTC3646-1 product overview Linear Technology DFN-14, MSOP-16
0% ADP2442 ADP2442 product overviewADP2442 product overview Analog Devices LFCSP-12
10% LTC3409 LTC3409 product overviewLTC3409 product overview Linear Technology DFN-8
10% LTC3409A LTC3409A product overviewLTC3409A product overview Linear Technology DFN-8
10% TPS62050 TPS62050 product overviewTPS62050 product overview Texas Instruments MSOP
10% TPS62051 TPS62051 product overviewTPS62051 product overview Texas Instruments MSOP
25% ADP2370 ADP2370 product overviewADP2370 product overview Analog Devices QFN-8
25% ADP2371 ADP2371 product overviewADP2371 product overview Analog Devices QFN-8
25% SC192 SC192 product overviewSC192 product overview Semtech MLPD-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3448.

V-IN max. 5.5 V, I-OUT 0.6 A, V-OUT min. 0.6 V, Frequency typ. 2250 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028001 1.0 1.8 1.5 65.00 2.8 x 2.8 x 1.2
744029001 1.0 2.2 1.6 45.00 2.8 x 2.8 x 1.5
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
744031010 1.0 2.0 1.6 26.00 3.8 x 3.8 x 1.8
74479773210 1.0 1.2 0.8 180.00 2 x 1.25 x 0.6
74479775210A 1.0 1.3 1.0 110.00 2 x 1.2 x 1.2
74479775215 1.5 1.1 0.8 160.00 2 x 1.2 x 1.2
74479776210 1.0 1.4 1.0 90.00 2 x 1.6 x 1
74479776215 1.5 1.3 0.8 110.00 2 x 1.6 x 1
74479787210B 1.0 2.0 1.2 60.00 2.5 x 2 x 1
74479787215A 1.5 1.9 1.1 70.00 2.5 x 2 x 1
74479876210 1.0 1.5 1.5 70.00 2 x 1.6 x 1
74479887210A 1.0 1.6 1.0 100.00 2.5 x 2 x 1
0Results
Module
Fresh Search
Replacement Search with
0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
add to Compare
Last Tweets
With the help of #OEMsecrets we show for all Selectors and products worldwide distributor inventory and prices. https://t.co/udaDPmshky
Update for the DC/DC Buck-Boost Converter Selector with additional products, fresh equivalent suggestions and more: https://t.co/C8PXhcizYQ
Meet us at the Electronica Tradeshow in Munich, appointments under info@dcdcselector.com https://t.co/1uiualLN1x
Feedback
ajax-loader.gif
Loading. Please wait.