LT3477 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT3477 is a 36.00 V, 4.00 A switch current limit non-sync Boost Converter from . The input voltage from 2.50 V to 25.00 V  can be boosted into an output voltage ranging from 2.50 V to 36.00 V.

Features of the Boost Converter are adjustable 1000 kHz switching frequency, a typical inductor size of 10.0 µH and it offers a peak efficiency of  up to 93 %. The minimum external component count is 12 and LT3477 is available in 2 package option(s): QFN-20 TSSOP-20 .

For LT3477 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. 25.00 V
Current-Limit typ.? 4.00 A
V-OUT min. 2.50 V
V-OUT max. 36.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 200 kHz
Frequency adj. max. 3500 kHz
extern clock sync. no
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 7500 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 10.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 93 %
Component count min. 12
current limit adjustable no
Nr.of package options 2
CSP
SC70
SOT
MSOP
QFN/DFN QFN-20
SO/SOIC
SOP TSSOP-20
DIP
TO
DDPAK

LT3477 Datasheet

Link to the most up-to-date LT3477 datasheet and the product page for EVM, tools and support information.

LT3477

LT3477 Price breaks and distributor sample stock

LT3477 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (8)

ProductStockPriceBuy
LT3477IUF#PBF192
15.40 USD
1004.45 USD
Buy Now
LT3477EFE#TRPBF205
13.98 USD
Buy Now
LT3477EFE#TRPBF212
13.98 USD
Buy Now
LT3477EUF#TRPBF7500
25003.79 USD
Buy Now
LT3477IFE#PBF125
15.66 USD
1004.66 USD
Buy Now
LT3477IFE#PBF16
15.66 USD
1004.66 USD
Buy Now
LT3477EFE#PBF408
14.71 USD
1003.88 USD
Buy Now
LT3477EUF#PBF100
4553.71 USD
Buy Now

Chip-One-Stop (9)

ProductStockPriceBuy
LT3477EFE#PBF54
15.66 USD
103.99 USD
503.85 USD
Buy Now
LT3477EFE#PBF744
17.75 USD
56.62 USD
106.47 USD
506.10 USD
1005.75 USD
2005.62 USD
Buy Now
LT3477EFE#TRPBF1897
18.25 USD
106.52 USD
256.22 USD
505.70 USD
1005.26 USD
2005.06 USD
Buy Now
LT3477EUF#PBF443
16.87 USD
105.78 USD
255.71 USD
505.45 USD
1005.32 USD
2005.08 USD
Buy Now
LT3477EUF#PBF443
16.87 USD
105.78 USD
255.71 USD
505.45 USD
1005.32 USD
2005.08 USD
Buy Now
LT3477EUF#TRPBF10000
25004.06 USD
Buy Now
LT3477IFE#PBF325
111.50 USD
511.20 USD
108.85 USD
508.00 USD
1007.19 USD
2006.77 USD
Buy Now
LT3477IFE#PBF325
111.50 USD
511.20 USD
108.85 USD
508.00 USD
1007.19 USD
2006.77 USD
Buy Now
LT3477IUF#PBF204
18.22 USD
57.02 USD
106.86 USD
506.46 USD
1006.09 USD
2005.95 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LT3477EFE#PBF1588
16.63 USD
254.71 USD
1003.88 USD
Buy Now
LT3477IFE#PBF1020
17.96 USD
255.66 USD
1004.66 USD
Buy Now
LT3477EUF#PBF3417
16.33 USD
254.50 USD
1003.71 USD
Buy Now
LT3477IUF#PBF92
17.59 USD
255.40 USD
1004.45 USD
Buy Now
LT3477EUF#TRPBF0
25003.81 USD
Buy Now
LT3477EFE#TRPBF0
25003.98 USD
Buy Now
LT3477IUF#TRPBF0
25004.55 USD
Buy Now
LT3477IFE#TRPBF0
25004.76 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT3477EFE#PBF77
110.59 USD
257.53 USD
1006.20 USD
Buy Now
LT3477EUF#PBF93
110.12 USD
257.19 USD
1005.93 USD
Buy Now
LT3477IUF#PBF50
112.13 USD
258.63 USD
1007.11 USD
Buy Now

FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT3477EFE#PBF77Buy Now
LT3477EUF#PBF93Buy Now
LT3477IUF#PBF50Buy Now

NEWARK (1)

ProductStockPriceBuy
LT3477EFE#PBF4
13.88 USD
253.88 USD
1003.88 USD
Buy Now
LT3477EFE#TRPBF0
16.83 USD
25004.90 USD
Buy Now
LT3477EUF#PBF0
16.31 USD
254.31 USD
1003.71 USD
Buy Now
LT3477IUF#PBF0
17.61 USD
255.17 USD
1004.45 USD
Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LT3477EFE#PBF32Buy Now

Available Distributors with stock: 7

Farnell element14

ProductStockPriceBuy
LT3477IUF#PBF 51
17.98 €
1004.20 €
17.98 €
255.19 €
1004.20 €
Buy Now
LT3477EFE#PBF 78
16.85 €
1003.68 €
16.85 €
254.45 €
1003.68 €
Buy Now
LT3477EUF#PBF 98
16.72 €
1003.50 €
16.72 €
254.33 €
1003.50 €
Buy Now

RS Components

ProductStockPriceBuy
LT3477EFE#PBF 32
14.98 GBP
104.78 GBP
743.80 GBP
1483.75 GBP
3703.70 GBP
Buy Now

Bristol Electronics

ProductStockPriceBuy
LT3477EFE#PBF 105 Buy Now
LT3477EFE 41 Buy Now

Conrad Electronic

ProductStockPriceBuy
LT3477IUF#PBF 99999999
19.53 €
109.05 €
Buy Now
LT3477EFE#PBF 99999999
18.31 €
107.90 €
Buy Now
LT3477EUF#PBF 99999999
17.94 €
107.55 €
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT3477IUF#PBF 50
19.70 $
256.90 $
1005.68 $
Buy Now
LT3477EFE#PBF 77
18.47 $
256.02 $
1004.96 $
Buy Now
LT3477EUF#PBF 93
18.10 $
255.75 $
1004.74 $
Buy Now

Newark element14

ProductStockPriceBuy
LT3477EFE#TRPBF 0
16.83 $
25004.90 $
Buy Now
LT3477IUF#PBF 0
17.61 $
255.17 $
1004.45 $
Buy Now
LT3477EFE#PBF 4
13.88 $
253.88 $
1003.88 $
Buy Now
LT3477EUF#PBF 0
16.31 $
254.31 $
1003.71 $
Buy Now
show stock=0hide stock=0

Chip1Stop

ProductStockPriceBuy
LT3477EFE#PBF 29
17.10 $
106.50 $
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT3477. Optional, compare LT3477 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3479 LT3479 product overviewLT3479 product overview Linear Technology DFN-14, TSSOP-16
0% LT3579 LT3579 product overviewLT3579 product overview Linear Technology QFN-20, TSSOP-20
0% LT3581 LT3581 product overviewLT3581 product overview Linear Technology MSOP-16, DFN-14
0% LT3959 LT3959 product overviewLT3959 product overview Linear Technology QFN-36
25% MAX8740 MAX8740 product overviewMAX8740 product overview Maxim Integrated TDFN-EP-10
25% MP3425 MP3425 product overviewMP3425 product overview MPS QFN-14
25% NJU7678 NJU7678 product overviewNJU7678 product overview New Japan Radio QFN-24
25% SC4501 SC4501 product overviewSC4501 product overview Semtech MSOP-8, MLPD-10
25% TPS61175 TPS61175 product overviewTPS61175 product overview Texas Instruments HTSSOP-14
25% G5120 G5120 product overviewG5120 product overview GMT TDFN-10
25% TS1910ACS TS1910ACS product overviewTS1910ACS product overview Taiwan Semi SOP-8
25% TPS61175-Q1 TPS61175-Q1 product overviewTPS61175-Q1 product overview Texas Instruments HTSSOP-14
50% AOZ1905DI AOZ1905DI product overviewAOZ1905DI product overview Alpha Omega DFN10
50% AOZ1905FI AOZ1905FI product overviewAOZ1905FI product overview Alpha Omega MSOP-8
50% ADP1613 ADP1613 product overviewADP1613 product overview Analog Devices MSOP-8
50% ISL97516 ISL97516 product overviewISL97516 product overview Intersil MSOP-8
50% ISL97519 ISL97519 product overviewISL97519 product overview Intersil MSOP-8
50% ISL97519A ISL97519A product overviewISL97519A product overview Intersil MSOP-8
50% LT3580 LT3580 product overviewLT3580 product overview Linear Technology MSOP-8, DFN-8
50% MAX17067 MAX17067 product overviewMAX17067 product overview Maxim Integrated uMAX-8
50% MAX8727 MAX8727 product overviewMAX8727 product overview Maxim Integrated TDFN-EP-10
50% MP3213 MP3213 product overviewMP3213 product overview MPS MSOP-8, QFN-10
50% RT9297 RT9297 product overviewRT9297 product overview Richtek WDFN-10
50% SC4502 SC4502 product overviewSC4502 product overview Semtech MLPD-10
50% SC4502H SC4502H product overviewSC4502H product overview Semtech MLPD-10
50% LM3224 LM3224 product overviewLM3224 product overview Texas Instruments VSSOP-8
50% LM3310 LM3310 product overviewLM3310 product overview Texas Instruments WQFN-24
50% LM3311 LM3311 product overviewLM3311 product overview Texas Instruments WQFN-24
50% LM5000-3 LM5000-3 product overviewLM5000-3 product overview Texas Instruments WSON-16, TSSOP-16
50% LM5000-6 LM5000-6 product overviewLM5000-6 product overview Texas Instruments WSON-16, TSSOP-16
50% TPS61085 TPS61085 product overviewTPS61085 product overview Texas Instruments MSOP-8, TSSOP-8
50% G5110 G5110 product overviewG5110 product overview GMT TDFN-10
50% TS1910CS TS1910CS product overviewTS1910CS product overview Taiwan Semi SOP-8
50% TPS61085-Q1 TPS61085-Q1 product overviewTPS61085-Q1 product overview Texas Instruments MSOP-8
50% EUP2624 EUP2624 product overviewEUP2624 product overview Eutech MSOP-8
50% LT8494 LT8494 product overviewLT8494 product overview Linear Technology QFN-20, TSSOP-20
50% LT8495 LT8495 product overviewLT8495 product overview Linear Technology QFN-20, TSSOP-20

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3477.

V-IN min. 2.5 V, Current-Limit typ. 4 A, V-OUT max. 36 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
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