LT3598 LED Boost Driver overview
Description
Manufacturer
Category
Sub-Category
LT3598 is a 6 channel, 30.0 V, 0.03 A/string non-sync LED Boost Driver. It can drive a maximum of 10 LED (~3.5Vfwd) per string, features a adjustable 2500 kHz frequency and is available in 2 package option(s): QFN-24 TSSOP-24 .
Further characteristics are a feedback voltage of 0.120 V, a typical inductor size of 10.0 uH and a peak efficiency of 90 %.
Parameter and features overview
| Parameter | Value | Replacement Search Filter |
| Nr. of Channel | 6 | |
| V-IN min. | 3.2 V | |
| V-IN max. | 30.0 V | |
| V-OUT max. | 44.0 V | |
| Nr.of LED per string typ. | 10 | |
| I-OUT/string? | 0.03 A | |
| current limit typ. | 2.00 A | |
| sync/non-sync | non-sync | |
| Frequency typ. | 2500 kHz | |
| Frequency | adjustable | |
| Frequency min. | 190 kHz | |
| Frequency max. | 2500 kHz | |
| Softstart |  |
|
| Softstart adjustable | |
|
| Down-Mode | |
|
| Quiescent current max. | 5000 uA | |
| Operating min. | ||
| Operating max. | ||
| Junction min. | -40 °C | |
| Junction max. | 125 °C | |
| thermal shutdown typ. | ||
| Inductor size typ. | 10.0 uH | |
| feedback voltage | 0.120 V | |
| Automotive AEC-Q100 |  |
|
| Topology | Boost | |
| Peak Efficiency | 90 % | |
| Component count min. | 17 | |
| DC dimming | |
|
| PWM dimming | |
|
| PWM frequency min. | 0.10 kHz | |
| PWM frequency max. | 1.0 kHz | |
| digital dimming | |
|
| digital interface | |
|
| LED flash | |
|
| TxMask | |
|
| Nr.of current sources | 6 | |
| Nr.of package options | 2 | |
| CSP | ||
| SC70 | ||
| SOT | ||
| MSOP | ||
| QFN/DFN | QFN-24 | |
| SO/SOIC | ||
| SOP | TSSOP-24 | |
| DIP |
LT3598 Datasheet
Link to the most up-to-date LT3598 datasheet and the product page for EVM, tools and support information.
LT3598 inventory, samples and price
Available Distributors with stock: 0
no online Distributor with LT3598 stock available
Available Distributors with stock: 0
no online Distributor with LT3598 stock available
List with equivalents & alternatives
The following DC/DC LED Boost driver are similar to LT3598. Optional, compare LT3598 side-by-side with other LED driver via the comparison function.
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3598.
V-IN min. 3.2 V, V-OUT max. 44 V, current limit typ. 2 A, Frequency typ. 2500 kHz
| 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 | |
| 744303012 | 0.1 | 31.0 | 55.0 | 0.33 | 10 x 6.8 x 5 | |
| 744307012 | 0.1 | 29.0 | 48.0 | 0.33 | 7.4 x 7.2 x 7.2 | |
| 7443081012 | 0.1 | 38.0 | 85.0 | 0.29 | 9.4 x 6.2 x 8.1 |
