LTC3613 Buck Converter overview
Description
LTC3613 is a 24.00 V sync Buck Converter from with 15.00 A output current. The maximum 24.00 V input voltage can be regulated down into a 0.60 V to 5.50 V output voltage.
It requires are a typical inductor size of 0.47 µH, a typical external component count of 19 and achieves a peak efficiency of 91 %. Further LTC3613 characteristics are a adjustable 1000 kHz switching frequency and 1 available package option(s): QFN-56 .
Parameter overview and features with replacement search
For the LTC3613 replacement search, please 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. | 4.50 V | |
| V-IN max. | 24.00 V | |
| I-OUT? | 15.00 A | |
| V-OUT min. | 0.60 V | |
| V-OUT max. | 5.50 V | |
| V-OUT | adjustable V | |
| V-OUT programmable |  |
|
| sync/non-sync | sync | |
| Frequency typ. | 1000 kHz | |
| Frequency | adjustable | |
| Frequency selectable | ||
| ext.clock sync. |  |
|
| Frequency adj./ ext.clock min. | 200 kHz | |
| Frequency adj./ ext.clock max | 1000 kHz | |
| Softstart | |
|
| Softstart adjustable | |
|
| Tracking | |
|
| PG/Power OK | |
|
| Quiescent current max. | 4000 µA | |
| Operating min. | ||
| Operating max. | ||
| Junction min. | -40 °C | |
| Junction max. | 125 °C | |
| thermal shutdown typ. | ||
| Inductor size typ. | 0.47 µH | |
| Inductor suggested by Würth Elektronik | ||
| Automotive AEC-Q100 | |
|
| Light-Load-Mode | |
|
| Topology | Buck | |
| Peak Efficiency | 91 % | |
| Component count min. | 19 | |
| current limit adjustable | |
|
| Nr.of packages | 1 | |
| CSP | ||
| SC70 | ||
| SOT | ||
| MSOP | ||
| QFN/DFN | QFN-56 | |
| SO/SOIC | ||
| SOP | ||
| DIP | ||
| TO | ||
| DDPAK |
LTC3613 Datasheet
Link to the most up-to-date LTC3613 datasheet and the product page for EVM, tools and support information.
LTC3613 Sample stock and distributor price breaks
LTC3613 prices and online available distributors.
Available Distributors with stock: 5
ARROW-NAC (3)
Chip-One-Stop (3)
DIGI-KEY (2)
Element14 (1)
FARNELL-ELEMENT14 (1)
Available Distributors with stock: 0
List of equivalents and alternatives
The following DC/DC Buck Converter are similar to LTC3613. Optional, compare LTC3613 side-by-side with other Buck Converter via the Comparison function.
| Variation | Compare | Product | Manufacturer | Package | |
| 50% | TPS54020 |  TPS54020 product overview |
Texas Instruments | VQFN-15 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3613.
| 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 | |
| 744303012 | 0.1 | 31.0 | 55.0 | 0.33 | 10 x 6.8 x 5 | |
| 744303015 | 0.2 | 31.0 | 42.0 | 0.33 | 10 x 6.8 x 5 | |
| 744304016 | 0.2 | 26.0 | 32.0 | 0.17 | 11.5 x 11.8 x 4 | |
| 744307012 | 0.1 | 29.0 | 48.0 | 0.33 | 7.4 x 7.2 x 7.2 | |
| 744307016 | 0.2 | 29.0 | 41.0 | 0.33 | 7.4 x 7.2 x 7.2 | |
| 744308015 | 0.2 | 27.0 | 58.0 | 0.37 | 10.1 x 7 x 7 | |
| 7443081018 | 0.2 | 38.0 | 60.0 | 0.29 | 9.4 x 6.2 x 8.1 | |
| 744310013 | 0.1 | 22.0 | 48.0 | 0.91 | 7 x 6.9 x 3.3 | |
| 744325016 | 0.2 | 25.0 | 58.0 | 0.51 | 10.5 x 10.2 x 5 | |
| 744355215 | 0.2 | 25.0 | 60.0 | 0.58 | 10.5 x 10.2 x 4.2 |
