A5973ADTR DC-DC Switching Converters by STMicroelectronics

Up to 1.5 A step-down switching regulator for automotive applications

Status: Active
Series: A5973AD
RoHS: Compliant
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The A5973AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.8 A, so it is able to deliver up to 1.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to V IN . The high current level is also achieved thanks to an HSOP8 package with an exposed frame, that allows to reduce the R th(JA) down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical R DS(on) of 250 mΩ) as a switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. A pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

Prices starting from US$1.63


Distributor Starting From Stock
Logo for Farnell Farnell US$1.63
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Logo for Future Electronics Future Electronics US$2.12
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Logo for Avnet America Avnet America US$2.24
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Logo for Newark Electronics Newark Electronics -
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Features

Qualified following the AEC-Q100 requirements (see PPAP for more details)
1.5 A DC output current
Operating input voltage from 4 V to 36 V
3.3 V / (± 2%) reference voltage
Output voltage adjustable from 1.235 V to VIN
Low dropout operation: 100% duty cycle
500 kHz internally fixed frequency
Voltage feed-forward
Zero load current operation
Internal current limiting
Inhibit for zero current consumption
Synchronization
Protection against feedback disconnection
Thermal shutdown

Alternative Descriptions

STMicroelectronics, A5973ADTR | RS
DC/DC CONV, BUCK, HSOP-8 | Farnell
IC REG BUCK ADJ 1.5A 8HSOP | Future Electronics
Conv DC-DC Single Step Down 4V to 36V 8-Pin HSOP EP T/R | Avnet America
Dc-Dc Converters |Stmicroelectronics A5973ADTR | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a A5973ADTR?

Additional datasheets, footprints and schematics for A5973ADTR are listed on our Part Details page. You can also find images and similar parts to A5973ADTR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for A5973ADTR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view A5973ADTR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does A5973ADTR fall under?

The A5973ADTR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to A5973ADTR 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 A5973ADTR you can contact the distributor directly for product support, shipping queries etc.

Is the A5973ADTR RoHS compliant?

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

Which authorised distributors for A5973ADTR have stock available?

Authorised distributors including RS, Farnell, Future Electronics, Avnet America and Newark Electronics have stock available or on a lead time for A5973ADTR.

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