LTC3539 Boost Converter Overview
Description
LTC3539 is a 5.25 V, 2.30 A switch current limit sync Boost Converter from . The input voltage from 0.50 V to 5.00 V can be boosted into an output voltage ranging from 1.50 V to 5.25 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 94 %. The minimum external component count is 6 and LTC3539 is available in 1 package option(s): DFN-8 .
Feature and parameter overview with replacement search
For LTC3539 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.
Parameter | Value | Replacement Search Filter |
V-IN min. | 0.50 V | |
V-IN max. | 5.00 V | |
Current-Limit typ.? | 2.30 A | |
V-OUT min. | 1.50 V | |
V-OUT max. | 5.25 V | |
VOUT | adjustable | |
VOUT programmable | ![]() |
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sync/non-sync | sync | |
Frequency typ. | 1000 kHz | |
Frequency adjustable | fixed | |
Frequency selectable | ||
Frequency adj. min. | ||
Frequency adj. max. | ||
extern clock sync. | ![]() |
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Softstart | ![]() |
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Softstart adjustable | ![]() |
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Tracking | ![]() |
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PG/Power OK | ![]() |
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LBI/LBO | ![]() |
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Frequency sync. min. | ||
Frequency sync. max. | ||
Down Mode | ![]() |
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Quiescent current max. | 500 µA | |
Operating min. | -40 °C | |
Operating max. | 85 °C | |
Junction min. | ||
Junction max. | ||
thermal shutdown typ. | 160 °C | |
Inductor size typ. | 4.7 µH | |
Inductor suggested by Würth Elektronik | ||
Automotive AEC-Q100 | ![]() |
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Light-Load-Mode | ![]() |
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Topology | Boost | |
Peak Efficiency | 94 % | |
Component count min. | 6 | |
current limit adjustable | ![]() |
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Nr.of package options | 1 | |
CSP | ||
SC70 | ||
SOT | ||
MSOP | ||
QFN/DFN | DFN-8 | |
SO/SOIC | ||
SOP | ||
DIP | ||
TO | ||
DDPAK |
LTC3539 Datasheet
Link to the most up-to-date LTC3539 datasheet and the product page for EVM, tools and support information.
LTC3539 Price breaks and distributor sample stock
LTC3539 prices and available online distributors.


Available Distributors with stock: 5
Digi-Key (5)
Product | Stock | Price | Buy | ||||||||
LTC3539EDCB#TRPBF | 2500 |
| Buy Now | ||||||||
LTC3539EDCB#TRPBF | 2683 |
| Buy Now | ||||||||
LTC3539EDCB#TRPBF | 2683 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 490 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 490 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRPBF | 0 |
| Buy Now | ||||||||
DC1260A-A | 0 |
| Buy Now | ||||||||
DC1260A-B | 0 |
| Buy Now |
Element14 (2)
Mouser-Electronics (3)
Newark Electronics (1)
RS Components (1)
Available Distributors without stock: 2
Farnell Element14 (0)
Rutronik (0)
Available Distributors with stock: 6
Arrow Electronics
Product | Stock | Price | Buy | ||||
LTC3539EDCB-2#TRMPBF | 459 |
| Buy Now | ||||
LTC3539EDCB#TRMPBF | 51 |
| Buy Now | ||||
LTC3539EDCB-2#TRMPBF | 0 |
| Buy Now | ||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||
LTC3539EDCB-2#TRPBF | 0 |
| Buy Now | ||||
LTC3539EDCB-2#TRPBF | 0 |
| Buy Now | ||||
LTC3539EDCB#TRPBF | 0 |
| Buy Now | ||||
LTC3539EDCB#TRPBF | 0 |
| Buy Now |
Digi-Key
Product | Stock | Price | Buy | ||||||||
LTC3539EDCB#TRPBF | 2683 |
| Buy Now | ||||||||
LTC3539EDCB#TRPBF | 2683 |
| Buy Now | ||||||||
LTC3539EDCB#TRPBF | 2500 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 490 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 490 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 225 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 225 |
| Buy Now | ||||||||
LTC3539EDCB#TRMPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRPBF | 0 |
| Buy Now | ||||||||
LTC3539EDCB-2#TRMPBF | 0 |
| Buy Now |
Newark element14
Quest Components
element14 Asia-Pacific
RS Components
Available Distributors without stock: 2
Mouser Electronics
Farnell element14
Alternatives and equivalents
The following DC/DC Boost Converter are similar to LTC3539. Optional, compare LTC3539 side-by-side with other Boost Converter via the Comparison function.
Variation | Compare | Product | Manufacturer | Package | |
0% | LTC3539-2 | ![]() |
Linear Technology | DFN-8 | |
25% | XC9131 | ![]() |
Torex | USP-10B | |
25% | XC9135 | ![]() |
Torex | USP-10 | |
25% | XC9136 | ![]() |
Torex | USP-10 | |
25% | RP402-K001A-B-C-D | ![]() |
Ricoh | DFN-8 | |
50% | ISL9113 | ![]() |
Intersil | WLCSP-6, DFN-8 | |
50% | LTC3528 | ![]() |
Linear Technology | DFN-8 | |
50% | MP3120 | ![]() |
MPS | TSOT23-6 | |
50% | MP3414 | ![]() |
MPS | TSOT23-8 | |
50% | NCP1423 | ![]() |
ON Semiconductor | Micro-10 | |
50% | TPS61200 | ![]() |
Texas Instruments | QFN-10 | |
50% | XC9128 | ![]() |
Torex | MSOP-10, USP-10B | |
50% | XC9129 | ![]() |
Torex | MSOP-10, USP-10B | |
50% | ISL9113A | ![]() |
Intersil | DFN-8 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3539.
Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |