SP6669-1.8 Buck Converter overview
Description
SP6669-1.8 is a 5.50 V sync Buck Converter from with 0.60 A output current. The maximum 5.50 V input voltage can be regulated down into a 1.80 V to 1.80 V output voltage.
It requires are a typical inductor size of 4.70 µH, a typical external component count of 4 and achieves a peak efficiency of 94 %. Further SP6669-1.8 characteristics are a fixed 1500 kHz switching frequency and 1 available package option(s): SOT23-5 .
Parameter overview and features with replacement search
For the SP6669-1.8 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. | 2.50 V | |
| V-IN max. | 5.50 V | |
| I-OUT? | 0.60 A | |
| V-OUT min. | 1.80 V | |
| V-OUT max. | 1.80 V | |
| V-OUT | 1.800 V | |
| V-OUT programmable |  |
|
| sync/non-sync | sync | |
| Frequency typ. | 1500 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. | 340 µA | |
| Operating min. | -40 °C | |
| Operating max. | 85 °C | |
| Junction min. | ||
| Junction max. | 125 °C | |
| thermal shutdown typ. | ||
| Inductor size typ. | 4.70 µH | |
| Inductor suggested by Würth Elektronik | ||
| Automotive AEC-Q100 | |
|
| Light-Load-Mode |  |
|
| Topology | Buck | |
| Peak Efficiency | 94 % | |
| Component count min. | 4 | |
| current limit adjustable | |
|
| Nr.of packages | 1 | |
| CSP | ||
| SC70 | ||
| SOT | SOT23-5 | |
| MSOP | ||
| QFN/DFN | ||
| SO/SOIC | ||
| SOP | ||
| DIP | ||
| TO | ||
| DDPAK |
SP6669-1.8 Datasheet
Link to the most up-to-date SP6669-1.8 datasheet and the product page for EVM, tools and support information.
SP6669-1.8 Sample stock and distributor price breaks
SP6669-1.8 prices and online available distributors.
Available Distributors with stock: 2
DIGI-KEY (3)
| Product | Stock | Price | Buy | ||||||||||||||
| SP6669AEK-L/TRR3 | 3000 |
| Buy Now | ||||||||||||||
| SP6669AEK-L/TRR3 | 5271 |
| Buy Now | ||||||||||||||
| SP6669AEK-L/TRR3 | 5271 |
| Buy Now | ||||||||||||||
| SP6669DEK-L/TRR3 | 0 |
| Buy Now | ||||||||||||||
| SP6669EB | 0 |
| Buy Now | ||||||||||||||
| SP6669BEK-L/TRR3 | 0 |
| Buy Now | ||||||||||||||
| SP6669CEK-L/TRR3 | 0 |
| Buy Now | ||||||||||||||
| IC-744721 | 0 |
| Buy Now |
Mouser-Electronics (3)
Available Distributors without stock: 2
FUTURE (0)
NEWARK (0)
Available Distributors with stock: 0
List of equivalents and alternatives
The following DC/DC Buck Converter are similar to SP6669-1.8. Optional, compare SP6669-1.8 side-by-side with other Buck Converter via the Comparison function.
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of SP6669-1.8.
| Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
| 744028003 | 3.3 | 1.0 | 0.9 | 185.00 | 2.8 x 2.8 x 1.2 | |
| 744029003 | 3.3 | 1.3 | 1.0 | 110.00 | 2.8 x 2.8 x 1.5 | |
| 744029004 | 4.7 | 1.0 | 0.8 | 170.00 | 2.8 x 2.8 x 1.5 | |
| 744030003 | 3.3 | 0.7 | 0.7 | 198.00 | 3.3 x 3.5 x 1.05 | |
| 744031003 | 3.6 | 1.4 | 1.1 | 66.00 | 3.8 x 3.8 x 1.8 | |
| 744031004 | 4.7 | 1.2 | 0.9 | 90.00 | 3.8 x 3.8 x 1.8 | |
| 74404024033 | 3.3 | 1.4 | 1.3 | 120.00 | 2.5 x 2 x 1.2 | |
| 74404024047 | 4.7 | 1.1 | 1.2 | 175.00 | 2.5 x 2 x 1.2 | |
| 74404032047 | 4.7 | 1.3 | 1.2 | 96.00 | 3 x 3 x 1.5 | |
| 74479888233 | 3.3 | 1.1 | 1.1 | 250.00 | 2.5 x 2 x 1 | |
| 74479889233 | 3.3 | 1.3 | 1.3 | 250.00 | 2.5 x 2 x 1.2 | |
| 74479889247 | 4.7 | 0.9 | 0.9 | 400.00 | 2.5 x 2 x 1.2 |
