L4975A DC-DC Switching Converters by STMicroelectronics

5 A switching regulator

Status: Active
Series: L4975A
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

The L4975A is a stepdown monolithic power switching regulator delivering 5A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4975A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external components. Efficient operation at switching frequencies up to 500KHz allows reduction in the size and cost of external filter component.

Prices starting from US$9.85


Distributor Starting From Stock
Logo for element14 element14 US$13.53
457
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Logo for Farnell Farnell US$11.17
457
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Logo for Schukat Electronic Schukat Electronic US$11.52
50
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Logo for Micros Micros US$12.51
20
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Logo for Newark Electronics Newark Electronics US$12.75
-
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Logo for Future Electronics Future Electronics US$9.85
-
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Features

UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
INPUT/OUTPUT SYNC PIN
VERY HIGH EFFICIENCY
PWM LATCH FOR SINGLE PULSE PER PERIOD
THERMAL SHUTDOWN
SWITCHING FREQUENCY UP TO 500KHz
CONTINUOUS MODE OPERATION
RESET AND POWER FAIL FUNCTIONS
PRECISE 5.1V ± 2% ON CHIP REFERENCE
5A OUTPUT CURRENT
0 TO 90% DUTY CYCLE RANGE
5.1V TO 40V OUTPUT VOLTAGE RANGE
INTERNAL CURRENT LIMITING
SOFT START
INTERNAL FEED-FORWARD LINE REG.

Alternative Descriptions

SWITCHING REG 5A, 4975, MULTIWATT15 | element14
Switch. Reg 5A 5,1-40V MULTIWATT | Schukat Electronic
Step down switch regulator,L4975A 40V 5A | RS
Step-Down Switching Regulator, 5A, Vin 15÷50V, Vout 5.1÷40V, 200kHz | Micros
Dc/Dc Conv, Buck, 500Khz, 150Deg C | Newark Electronics
L4975 Series 5 A Step Down Monolithic Power Switching Regulator - MULTIWATT-15 | Future Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L4975A?

Additional datasheets, footprints and schematics for L4975A are listed on our Part Details page. You can also find images and similar parts to L4975A on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L4975A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L4975A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L4975A fall under?

The L4975A is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to L4975A 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 L4975A you can contact the distributor directly for product support, shipping queries etc.

Is the L4975A RoHS compliant?

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

Which authorised distributors for L4975A have stock available?

Authorised distributors including element14, Farnell, Schukat Electronic, RS and Micros have stock available or on a lead time for L4975A.

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

Stock availability and lead times will be displayed for L4975A often in real-time on the comparison pages.

What if I can't find stock of L4975A?

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