LT1377 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT1377 is a 35.00 V, 2.00 A switch current limit non-sync Boost Converter from . The input voltage from 2.70 V to 30.00 V  can be boosted into an output voltage ranging from 3.00 V to 35.00 V.

Features of the Boost Converter are fixed 1000 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 88 %. The minimum external component count is 9 and LT1377 is available in 2 package option(s): SO-8 PDIP-8 .

For LT1377 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. 2.70 V
V-IN max. 30.00 V
Current-Limit typ.? 2.00 A
V-OUT min. 3.00 V
V-OUT max. 35.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. yes
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min. 1200 kHz
Frequency sync. max. 1600 kHz
Down Mode no
Quiescent current max. 5500 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 88 %
Component count min. 9
current limit adjustable no
Nr.of package options 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP PDIP-8
TO
DDPAK

LT1377 Datasheet

Link to the most up-to-date LT1377 datasheet and the product page for EVM, tools and support information.

LT1377

LT1377 Price breaks and distributor sample stock

LT1377 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 6

Chip-One-Stop (2)

ProductStockPriceBuy
LT1377CS8#PBF1420
18.64 USD
57.38 USD
107.21 USD
506.80 USD
1006.41 USD
2006.26 USD
Buy Now
LT1377IS8#PBF689
110.20 USD
58.78 USD
108.58 USD
508.08 USD
1007.62 USD
2007.45 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LT1377IS8#PBF24Buy Now
LT1377CS8#PBF559
17.91 USD
255.26 USD
1004.50 USD
Buy Now
LT1377IS8#PBF200
19.55 USD
256.35 USD
1005.40 USD
Buy Now
DC053A-B3
1100.50 USD
Buy Now
LT1377CS8#TRPBF0
25004.60 USD
Buy Now
LT1377IS8#TRPBF0
25005.50 USD
Buy Now

Element14 (2)

ProductStockPriceBuy
LT1377CS8#PBF380
112.55 USD
258.35 USD
1007.14 USD
Buy Now
LT1377IS8#PBF188
115.16 USD
2510.08 USD
1008.57 USD
Buy Now

FARNELL-ELEMENT14 (2)

ProductStockPriceBuy
LT1377CS8#PBF415Buy Now
LT1377IS8#PBF188Buy Now

NEWARK (1)

ProductStockPriceBuy
LT1377CS8#PBF0
17.92 USD
255.31 USD
1004.50 USD
Buy Now
LT1377IS8#PBF4
15.40 USD
255.40 USD
1005.40 USD
Buy Now

RS-COMPONENTS (2)

ProductStockPriceBuy
LT1377CS8#PBF8Buy Now
LT1377CS8#PBF78Buy Now

Available Distributors with stock: 0

no online Distributor with LT1377 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1377. Optional, compare LT1377 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1373 LT1373 product overviewLT1373 product overview Linear Technology SO-8, PDIP-8
0% LT1373HV LT1373HV product overviewLT1373HV product overview Linear Technology SO-8, PDIP-8
10% LT1372 LT1372 product overviewLT1372 product overview Linear Technology SO-8, PDIP-8
10% LT1372HV LT1372HV product overviewLT1372HV product overview Linear Technology SO-8, PDIP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1377.

V-IN min. 2.7 V, Current-Limit typ. 2 A, V-OUT max. 35 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744303022 0.2 31.0 32.0 0.33 10 x 6.8 x 5
744305022 0.2 28.0 42.0 0.16 13.5 x 13.3 x 5.2
744307022 0.2 29.0 29.0 0.33 7.4 x 7.2 x 7.2
744308020 0.2 27.0 48.0 0.37 10.1 x 7 x 7
744308025 0.3 27.0 44.0 0.37 10.1 x 7 x 7
7443081022 0.2 38.0 45.0 0.29 9.4 x 6.2 x 8.1
7443081030 0.3 38.0 32.0 0.29 9.4 x 6.2 x 8.1
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