RT9293B LED Boost Driver overview
Description
Manufacturer
Category
Sub-Category
RT9293B is a 1 channel, 5.5 V, 0.30 A/string non-sync LED Boost Driver. It can drive a maximum of 10 LED (~3.5Vfwd) per string, features a fixed 1000 kHz frequency and is available in 2 package option(s): SOT23-6 WDFN-8 .
Further characteristics are a feedback voltage of 0.300 V, a typical inductor size of 22.0 uH and a peak efficiency of 91 %.
Parameter and features overview
| Parameter | Value | Replacement Search Filter |
| Nr. of Channel | 1 | |
| V-IN min. | 2.5 V | |
| V-IN max. | 5.5 V | |
| V-OUT max. | 46.0 V | |
| Nr.of LED per string typ. | 10 | |
| I-OUT/string? | 0.30 A | |
| current limit typ. | 1.00 A | |
| sync/non-sync | non-sync | |
| Frequency typ. | 1000 kHz | |
| Frequency | fixed | |
| Frequency min. | ||
| Frequency max. | ||
| Softstart |  |
|
| Softstart adjustable |  |
|
| Down-Mode | |
|
| Quiescent current max. | 600 uA | |
| Operating min. | -40 °C | |
| Operating max. | 85 °C | |
| Junction min. | -40 °C | |
| Junction max. | 125 °C | |
| thermal shutdown typ. | 160 °C | |
| Inductor size typ. | 22.0 uH | |
| feedback voltage | 0.300 V | |
| Automotive AEC-Q100 | |
|
| Topology | Boost | |
| Peak Efficiency | 91 % | |
| Component count min. | 5 | |
| DC dimming | |
|
| PWM dimming | |
|
| PWM frequency min. | 0.20 kHz | |
| PWM frequency max. | 200.0 kHz | |
| digital dimming | |
|
| digital interface | |
|
| LED flash | |
|
| TxMask | |
|
| Nr.of current sources | 1 | |
| Nr.of package options | 2 | |
| CSP | ||
| SC70 | ||
| SOT | SOT23-6 | |
| MSOP | ||
| QFN/DFN | WDFN-8 | |
| SO/SOIC | ||
| SOP | ||
| DIP |
RT9293B Datasheet
Link to the most up-to-date RT9293B datasheet and the product page for EVM, tools and support information.
RT9293B inventory, samples and price
Available Distributors with stock: 0
no online Distributor with RT9293B stock available
Available Distributors with stock: 0
no online Distributor with RT9293B stock available
List with equivalents & alternatives
The following DC/DC LED Boost driver are similar to RT9293B. Optional, compare RT9293B side-by-side with other LED driver via the comparison function.
| Variation | Compare | Product | Manufacturer | Package | |
| 25% | IS31PW3506A |  IS31PW3506A product overview |
ISSI | DFN-8, SOT23-6 | |
| 25% | IS31PW3506B | IS31PW3506B product overview |
ISSI | TSOT23-6 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT9293B.
V-IN min. 2.5 V, V-OUT max. 46 V, current limit typ. 1 A, Frequency typ. 1000 kHz
| Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
| 744305033 | 0.3 | 28.0 | 26.0 | 0.16 | 13.5 x 13.3 x 5.2 | |
| 744305040 | 0.4 | 28.0 | 20.0 | 0.16 | 13.5 x 13.3 x 5.2 | |
| 744306025 | 0.3 | 26.0 | 32.0 | 0.30 | 10.5 x 10.3 x 5.5 | |
| 744306030 | 0.3 | 26.0 | 24.0 | 0.30 | 10.5 x 10.3 x 5.5 | |
| 744308033 | 0.3 | 27.0 | 30.0 | 0.37 | 10.1 x 7 x 7 | |
| 744308040 | 0.4 | 25.0 | 26.0 | 0.37 | 10.1 x 7 x 7 | |
| 7443081030 | 0.3 | 38.0 | 32.0 | 0.29 | 9.4 x 6.2 x 8.1 | |
| 7443081040 | 0.4 | 38.0 | 21.0 | 0.29 | 9.4 x 6.2 x 8.1 | |
| 744311047 | 0.4 | 19.0 | 25.0 | 1.85 | 7 x 6.9 x 4 | |
| 744314024 | 0.2 | 20.0 | 28.0 | 1.00 | 7 x 6.9 x 5 | |
| 744325040 | 0.4 | 24.0 | 37.0 | 0.67 | 10.5 x 10.2 x 5 | |
| 7443340030 | 0.3 | 20.5 | 36.0 | 2.30 | 8.4 x 7.9 x 7.5 | |
| 744355230 | 0.3 | 22.0 | 35.0 | 1.10 | 10.5 x 10.2 x 4.2 | |
| 744373770033 | 0.3 | 24.0 | 35.0 | 0.88 | 13.5 x 12.6 x 3.5 |
