LTC3537 Boost Converter Overview
Description
LTC3537 is a 5.25 V, 0.70 A switch current limit sync Boost Converter from . The input voltage from 0.68 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 2200 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of up to 89 %. The minimum external component count is 11 and LTC3537 is available in 1 package option(s): QFN-16 .
Feature and parameter overview with replacement search
For LTC3537 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. | 0.68 V | |
| V-IN max. | 5.00 V | |
| Current-Limit typ.? | 0.70 A | |
| V-OUT min. | 1.50 V | |
| V-OUT max. | 5.25 V | |
| VOUT | adjustable | |
| VOUT programmable |  |
|
| sync/non-sync | sync | |
| Frequency typ. | 2200 kHz | |
| Frequency adjustable | fixed | |
| Frequency selectable | ||
| Frequency adj. min. | ||
| Frequency adj. max. | ||
| extern clock sync. | |
|
| Softstart |  |
|
| Softstart adjustable | |
|
| Tracking | |
|
| PG/Power OK | |
|
| LBI/LBO | |
|
| Frequency sync. min. | ||
| Frequency sync. max. | ||
| Down Mode | |
|
| 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. | 2.2 µH | |
| Inductor suggested by Würth Elektronik | ||
| Automotive AEC-Q100 | |
|
| Light-Load-Mode | |
|
| Topology | Boost | |
| Peak Efficiency | 89 % | |
| Component count min. | 11 | |
| current limit adjustable | |
|
| Nr.of package options | 1 | |
| CSP | ||
| SC70 | ||
| SOT | ||
| MSOP | ||
| QFN/DFN | QFN-16 | |
| SO/SOIC | ||
| SOP | ||
| DIP | ||
| TO | ||
| DDPAK |
LTC3537 Datasheet
Link to the most up-to-date LTC3537 datasheet and the product page for EVM, tools and support information.
LTC3537 Price breaks and distributor sample stock
LTC3537 prices and available online distributors.
Available Distributors with stock: 2
Digi-Key
| Product | Stock | Price | Buy | ||||||
| LTC3537EUD#PBF | 1368 |
| Buy Now | ||||||
| DC1242A | 2 |
| Buy Now | ||||||
| LTC3537EUD#TRPBF | 0 |
| Buy Now |
Farnell element14
| Product | Stock | Price | Buy | ||||||
| LTC3537EUD#PBF | 105 |
| Buy Now |
Available Distributors without stock: 2
Arrow Electronics
Mouser Electronics
Alternatives and equivalents
The following DC/DC Boost Converter are similar to LTC3537. Optional, compare LTC3537 side-by-side with other Boost Converter via the Comparison function.
| Variation | Compare | Product | Manufacturer | Package | |
| 25% | TPS61028 |  TPS61028 product overview |
Texas Instruments | QFN-10 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3537.
| Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
| 744302010 | 0.1 | 30.0 | 45.0 | 0.24 | 6.95 x 6.8 x 4.7 | |
| 744302015 | 0.2 | 30.0 | 32.0 | 0.24 | 6.95 x 6.8 x 4.7 | |
| 744307012 | 0.1 | 29.0 | 48.0 | 0.33 | 7.4 x 7.2 x 7.2 | |
| 744310013 | 0.1 | 22.0 | 48.0 | 0.91 | 7 x 6.9 x 3.3 | |
| 744373210010 | 0.1 | 7.0 | 25.0 | 4.30 | 4.45 x 4.06 x 1.2 | |
| 744373240010 | 0.1 | 12.0 | 30.0 | 3.20 | 4.45 x 4.06 x 2 |
