L7981ATR DC-DC Switching Converters by STMicroelectronics
3 A step-down switching regulator
| Status: | Active |
|---|---|
| Series: | L7981 |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$0.91
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$1.02
|
4,584
in stock
|
Buy Now |
|
Future Electronics
from US$0.91
|
7,500
in stock
|
Buy Now |
|
Avnet America
from US$1.01
|
5,000
in stock
|
Buy Now |
|
element14
from US$1.03
|
4,584
in stock
|
Buy Now |
|
Avnet Silica
-
|
5,000
in stock
|
Buy Now |
|
Newark Electronics
from US$1.36
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
Features
| 3 A DC output current |
| 4.5 V to 28 V input voltage |
| Output voltage adjustable from 0.6 V |
| 250 kHz switching frequency, programmable up to 1 MHz |
| Internal soft-start and enable |
| Low dropout operation: 100% duty cycle |
| Voltage feed-forward |
| Zero load current operation |
| Overcurrent and thermal protection |
| VFQFPN 3 x 3 - 8L and HSOP8 package |
Resources
Product Specifications |
|---|
| DS5975 3 A step-down switching regulator |
Technical Notes & Articles |
|---|
| TN1224 Mounting instructions for SMD (surface mounting device) packages |
Design Notes & Tips |
|---|
| DN0011 ST1S03 alternative topology: Using a buck in a negative buck-boost configuration |
Brochures |
|---|
| Electric vehicle (EV) ecosystem |
Alternative Descriptions
| L7981 Series 28 V 3 A 1 MHz Step Down Switching Regulator SMT - HSOP-8 | Future Electronics |
| Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R | Avnet America |
| DC/DC CONV, BUCK, 250KHZ, HSOP-8 | element14 |
| Dc/Dc Conv, Buck, 250Khz, Hsop-8 | Newark Electronics |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a L7981ATR?
Additional datasheets, footprints and schematics for L7981ATR are listed on our Part Details page. You can also find images and similar parts to L7981ATR on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for L7981ATR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L7981ATR price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does L7981ATR fall under?
The L7981ATR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.
Can I view similar or alternative parts?
You can view similar parts to L7981ATR when available in the Buck Regulators range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the L7981ATR you can contact the distributor directly for product support, shipping queries etc.
Is the L7981ATR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.
Which authorised distributors for L7981ATR have stock available?
Authorised distributors including Future Electronics, Avnet America, element14, Farnell and Avnet Silica have stock available or on a lead time for L7981ATR.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for L7981ATR often in real-time on the comparison pages.
What if I can't find stock of L7981ATR?
You can fill out our help required form which you can use to request a quote for L7981ATR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.