LT1946 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT1946 is a 36.00 V, 2.10 A switch current limit non-sync Boost Converter from . The input voltage from 2.45 V to 16.00 V  can be boosted into an output voltage ranging from 2.60 V to 36.00 V.

Features of the Boost Converter are fixed 1200 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 85 %. The minimum external component count is 9 and LT1946 is available in 1 package option(s): MSOP-8 .

For LT1946 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. 2.45 V
V-IN max. 16.00 V
Current-Limit typ.? 2.10 A
V-OUT min. 2.60 V
V-OUT max. 36.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
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. 5000 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 85 %
Component count min. 9
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP MSOP-8
QFN/DFN
SO/SOIC
SOP
DIP
TO
DDPAK

LT1946 Datasheet

Link to the most up-to-date LT1946 datasheet and the product page for EVM, tools and support information.

LT1946

LT1946 Price breaks and distributor sample stock

LT1946 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 4

Chip One Stop (5)

ProductStockPriceBuy
LT1946AEMS8E#PBF750
13.68 USD
1002.94 USD
Buy Now
LT1946EMS8E#PBF508
13.79 USD
1003.02 USD
Buy Now
LT1946EMS8#PBF15
12.62 USD
Buy Now
LT1946EMS8#PBF15
12.62 USD
Buy Now
LT1946EMS8#TRPBF2370
13.38 USD
Buy Now

Digi-Key (3)

ProductStockPriceBuy
LT1946AEMS8E#PBF95
13.52 USD
252.34 USD
1001.86 USD
Buy Now
LT1946EMS8#PBF625
13.52 USD
252.34 USD
1001.86 USD
Buy Now
LT1946EMS8E#PBF1541
13.64 USD
252.42 USD
1001.91 USD
Buy Now
LT1946EMS8#TRPBF0
25001.96 USD
Buy Now
LT1946AEMS8E#TRPBF0
25001.96 USD
Buy Now
LT1946EMS8E#TRPBF0
25002.01 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LT1946AEMS8E#PBF328
15.43 USD
253.60 USD
1002.91 USD
Buy Now

Farnell Element14 (1)

ProductStockPriceBuy
LT1946AEMS8E#PBF328Buy Now

Available Distributors without stock: 1

Newark Electronics (0)

ProductStockPriceBuy
LT1946AEMS8E#PBF0
13.52 USD
252.33 USD
1001.86 USD
Buy Now
LT1946EMS8E#PBF0
13.63 USD
252.41 USD
1001.91 USD
Buy Now
LT1946EMS8#PBF0
13.52 USD
252.33 USD
1001.86 USD
Buy Now

Available Distributors with stock: 6

Arrow Electronics

ProductStockPriceBuy
LT1946EMS8#TRPBF 2500
25001.91 $
Buy Now
LT1946EMS8#TRPBF 2370
11.91 $
Buy Now
LT1946AEMS8E#PBF 750
12.08 $
1001.86 $
Buy Now
LT1946EMS8E#PBF 508
12.14 $
1001.91 $
Buy Now
LT1946EMS8#PBF 15
12.08 $
1001.86 $
Buy Now
LT1946EMS8#PBF 0
14501.86 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1946EMS8E#PBF 1541
1001.62 €
252.05 €
13.09 €
Buy Now
LT1946EMS8#PBF 625
1001.58 €
251.98 €
12.99 €
Buy Now
LT1946AEMS8E#PBF 95
1001.58 €
251.98 €
12.99 €
Buy Now
LT1946EMS8#TRPBF 0
25001.66 €
Buy Now
LT1946AEMS8E#TRPBF 0
25001.66 €
Buy Now
LT1946EMS8E#TRPBF 0
25001.71 €
Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1946AEMS8E#TR 91 Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT1946AEMS8E#PBF 328
14.34 $
252.88 $
1002.32 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1946AEMS8E#PBF 328
13.07 GBP
251.81 GBP
1001.52 GBP
Buy Now

Chip1Stop

ProductStockPriceBuy
LT1946EMS8E#PBF 508
13.79 $
1003.02 $
Buy Now
LT1946EMS8#TRPBF 2370
13.38 $
Buy Now
LT1946EMS8#PBF 15
12.62 $
Buy Now
LT1946AEMS8E#PBF 750
13.68 $
1002.94 $
Buy Now

Available Distributors without stock: 1

Newark element14

ProductStockPriceBuy
LT1946EMS8E#PBF 0
13.63 $
252.41 $
1001.00 $
Buy Now
LT1946EMS8#PBF 0
13.52 $
252.33 $
1001.00 $
Buy Now
LT1946AEMS8E#PBF 0
13.52 $
252.33 $
1001.00 $
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1946. Optional, compare LT1946 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1935 LT1935 product overviewLT1935 product overview Linear Technology TSOT23-5
0% LT1946A LT1946A product overviewLT1946A product overview Linear Technology MSOP-8
0% LT3489 LT3489 product overviewLT3489 product overview Linear Technology MSOP-8E
10% LT3467 LT3467 product overviewLT3467 product overview Linear Technology SOT23-6, DFN-6
10% LT3467A LT3467A product overviewLT3467A product overview Linear Technology SOT23-6, DFN-6
10% CS5171 CS5171 product overviewCS5171 product overview ON Semiconductor SOIC-8
10% CS5173 CS5173 product overviewCS5173 product overview ON Semiconductor SOIC-8
10% NCV5171 NCV5171 product overviewNCV5171 product overview ON Semiconductor SOIC-8
10% NCV5173 NCV5173 product overviewNCV5173 product overview ON Semiconductor SOIC-8
25% AS1344 AS1344 product overviewAS1344 product overview AMS TDFN-10
25% LT1172 LT1172 product overviewLT1172 product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5
25% LT1172HV LT1172HV product overviewLT1172HV product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5
25% SC4503 SC4503 product overviewSC4503 product overview Semtech TSOT23-5, MLPD-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1946.

V-IN min. 2.45 V, Current-Limit typ. 2.1 A, V-OUT max. 36 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
7443081012 0.1 38.0 85.0 0.29 9.4 x 6.2 x 8.1
7443081015 0.2 38.0 67.0 0.29 9.4 x 6.2 x 8.1
7443081018 0.2 38.0 60.0 0.29 9.4 x 6.2 x 8.1
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