ACT4533 Buck Converter overview
Description
ACT4533 is a 32.00 V non-sync Buck Converter from with 3.00 A output current. The maximum 32.00 V input voltage can be regulated down into a 0.82 V to 12.00 V output voltage.
It requires are a typical inductor size of 47.00 µH, a typical external component count of 11 and achieves a peak efficiency of 92 %. Further ACT4533 characteristics are a fixed 125 kHz switching frequency and 1 available package option(s): SOP-8EP .
Parameter overview and features with replacement search
For the ACT4533 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. | 10.00 V | |
| V-IN max. | 32.00 V | |
| I-OUT? | 3.00 A | |
| V-OUT min. | 0.82 V | |
| V-OUT max. | 12.00 V | |
| V-OUT | adjustable V | |
| V-OUT programmable |  |
|
| sync/non-sync | non-sync | |
| Frequency typ. | 125 kHz | |
| Frequency | fixed | |
| Frequency selectable | ||
| ext.clock sync. | |
|
| Frequency adj./ ext.clock min. | ||
| Frequency adj./ ext.clock max | ||
| Softstart |  |
|
| Softstart adjustable | |
|
| Tracking | |
|
| PG/Power OK | |
|
| Quiescent current max. | 1400 µA | |
| Operating min. | -40 °C | |
| Operating max. | 85 °C | |
| Junction min. | -40 °C | |
| Junction max. | 150 °C | |
| thermal shutdown typ. | 150 °C | |
| Inductor size typ. | 47.00 µH | |
| Inductor suggested by Würth Elektronik | ||
| Automotive AEC-Q100 | |
|
| Light-Load-Mode | |
|
| Topology | Buck | |
| Peak Efficiency | 92 % | |
| Component count min. | 11 | |
| current limit adjustable | |
|
| Nr.of packages | 1 | |
| CSP | ||
| SC70 | ||
| SOT | ||
| MSOP | ||
| QFN/DFN | ||
| SO/SOIC | ||
| SOP | SOP-8EP | |
| DIP | ||
| TO | ||
| DDPAK |
ACT4533 Datasheet
Link to the most up-to-date ACT4533 datasheet and the product page for EVM, tools and support information.
ACT4533 Sample stock and distributor price breaks
ACT4533 prices and online available distributors.
Available Distributors with stock: 0
Available Distributors with stock: 0
List of equivalents and alternatives
The following DC/DC Buck Converter are similar to ACT4533. Optional, compare ACT4533 side-by-side with other Buck Converter via the Comparison function.
| Variation | Compare | Product | Manufacturer | Package | |
| 0% | ACT4523 |  ACT4523 product overview |
Active Semi | SOP-8EP | |
| 0% | ACT4523A | ACT4523A product overview |
Active Semi | SOP-8EP | |
| 0% | ACT4533A | ACT4533A product overview |
Active Semi | SOP-8EP | |
| 0% | ACT4533B | ACT4533B product overview |
Active Semi | SOP-8EP | |
| 10% | ACT4303 | ACT4303 product overview |
Active Semi | SOP-8 | |
| 50% | ACT4513 | ACT4513 product overview |
Active Semi | SOP-8 | |
| 50% | ACT4514 | ACT4514 product overview |
Active Semi | SOP-8 | |
| 50% | ACT4515 | ACT4515 product overview |
Active Semi | SOP-8 | |
| 50% | LM22673 | LM22673 product overview |
Texas Instruments | TO263-7, SO-8 | |
| 50% | LM2673 | LM2673 product overview |
Texas Instruments | DDPAK-7, TO-220-7, VSON-14 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ACT4533.
| Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
| 74404064068 | 6.8 | 3.0 | 4.3 | 31.00 | 6 x 6 x 4.5 | |
| 74404084068 | 6.8 | 3.6 | 5.0 | 24.00 | 8 x 8 x 4.2 | |
| 74404084082 | 8.2 | 3.5 | 4.6 | 26.00 | 8 x 8 x 4.2 | |
| 7440650068 | 6.8 | 4.2 | 3.6 | 25.00 | 10 x 10 x 3.1 | |
| 7440660062 | 6.2 | 4.3 | 4.5 | 16.50 | 10 x 10 x 4.1 | |
| 744071056 | 5.6 | 4.0 | 4.0 | 20.00 | 8 x 8 x 4.6 | |
| 744314650 | 6.5 | 6.0 | 6.0 | 21.50 | 7 x 6.9 x 5 | |
| 744314760 | 7.6 | 4.2 | 4.8 | 30.20 | 7 x 6.9 x 5 | |
| 744314850 | 8.5 | 4.0 | 4.5 | 32.50 | 7 x 6.9 x 5 | |
| 744316560 | 5.6 | 4.5 | 4.6 | 28.50 | 5.5 x 5.3 x 4.3 | |
| 74437336056 | 5.6 | 3.0 | 6.0 | 55.00 | 5.7 x 5.2 x 3 | |
| 7447471068 | 6.8 | 6.4 | 5.0 | 11.90 | 10.5 x 10.5 x 11.5 | |
| 744771006 | 6.8 | 5.6 | 6.0 | 14.00 | 12 x 12 x 6 | |
| 744771008 | 8.2 | 6.3 | 6.3 | 14.00 | 12 x 12 x 6 | |
| 7447713082 | 8.2 | 3.0 | 4.7 | 41.00 | 10 x 10 x 3 | |
| 7447714056 | 5.6 | 6.0 | 7.2 | 12.00 | 10 x 10 x 5 | |
| 7447714068 | 6.8 | 5.2 | 5.8 | 18.50 | 10 x 10 x 5 | |
| 7447715006 | 6.8 | 4.3 | 4.7 | 20.00 | 12 x 12 x 4.5 | |
| 744772068 | 6.8 | 3.8 | 6.5 | 18.50 | 7.8 x 7.8 x 10 | |
| 7447797820 | 8.2 | 5.1 | 5.8 | 25.30 | 10.2 x 10.2 x 4.5 | |
| 7447798620 | 6.2 | 9.4 | 6.7 | 8.40 | 10.2 x 10.2 x 6.4 | |
| 7447798720 | 7.2 | 7.9 | 6.0 | 11.30 | 10.2 x 10.2 x 6.4 | |
| 7447798910 | 9.1 | 7.4 | 5.4 | 12.70 | 10.2 x 10.2 x 6.4 | |
| 784771068 | 6.8 | 5.5 | 6.0 | 18.00 | 12 x 12 x 8.3 | |
| 784771082 | 8.2 | 5.1 | 5.5 | 20.00 | 12 x 12 x 8.3 | |
| 784775056 | 5.6 | 4.0 | 4.0 | 18.00 | 7 x 7.8 x 5.5 | |
| 784775068 | 6.8 | 3.7 | 3.8 | 22.00 | 7 x 7.8 x 5.5 | |
| 784776056 | 5.6 | 4.8 | 5.5 | 15.00 | 9 x 10 x 5.9 | |
| 784776068 | 6.8 | 4.4 | 5.0 | 16.00 | 9 x 10 x 5.9 | |
| 784776082 | 8.2 | 4.2 | 4.3 | 20.00 | 9 x 10 x 5.9 |
