L5973AD DC-DC Switching Converters by STMicroelectronics

2 A switch step down switching regulator

Status: Active
Series: L5973AD
RoHS: Compliant
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The L5973AD is a step down monolithic power switching regulator with a switch current limit of 2A so it is able to deliver more than 1.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the R thJA down to approximately 40 °C/W. The device uses an internal P-Channel D-MOS transistor (with a typical of 200 mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency. An internal oscillator fixes the switching frequency at 500 kHz to minimize the size of external components. Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

Where to Buy

Prices starting from US$1.13

Distributor Stock
Logo for RS
RS
from US$2.24
No stock
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Logo for Newark Electronics
Newark Electronics
from US$1.72
20,381
in stock
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element14
from US$1.55
20,381
in stock
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Farnell
from US$1.69
20,381
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Transfer Multisort Elektronik
from US$2.00
4,367
in stock
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Chip One Stop
from US$1.13
1,999
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Future Electronics
from US$1.49
1,329
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Avnet Silica
-
36,600
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EBV Elektronik
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400
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Avnet America
from US$1.54
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Features

Inhibit for zero current consumption
Internal current limiting
Protection against feedback disconnection
Synchronization
Thermal shutdown
Voltage feedforward
500 kHz Internally fixed frequency
2 A Internal switch
3.3 V / (±2 %) reference voltage
Operating input voltage from 4 V to 36 V
Low dropout operation: 100 % duty cycle
Zero load current operation
Output voltage adjustable from 1.235 V to 35 V

Alternative Descriptions

Dc/Dc Conv, Buck, 500Khz, 150Deg C | Newark Electronics
IC, BUCK REG, SMD, 5973, HSOP8 | element14
IC: driver | Transfer Multisort Elektronik
L5973AD Series 2 A Switch Step Down Monolithic Power Switching Regulator-HSOP-8 | Future Electronics
Conv DC-DC Single Step Down 4V to 36V 8-Pin HSOP EP Tube | Avnet Silica
Switching Reg,1.5A,4.4-36Vin,L5973AD | RS


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L5973AD?

Additional datasheets, footprints and schematics for L5973AD are listed on our Part Details page. You can also find images and similar parts to L5973AD on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L5973AD on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L5973AD price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L5973AD fall under?

The L5973AD is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to L5973AD 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 L5973AD you can contact the distributor directly for product support, shipping queries etc.

Is the L5973AD RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for L5973AD have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Transfer Multisort Elektronik and Chip One Stop have stock available or on a lead time for L5973AD.

How do I check stock and lead times for all distributors?

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