L4971D013TR DC-DC Switching Converters by STMicroelectronics

1.5A Switching Regulator


The L4971 is a step down monolithic power switching regulator delivering 1.5A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25Ω) to obtain very high efficency and high switching speed. A switching frequency up to 300KHz is achievable (the maximum power dissipation of the packages must be observed). A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 50V cover the majority of today’s applications. Features of this new generations of DC-DC converter include pulse-by-pulse current limit, hiccup mode for short circuit protection, voltage feedforward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown. The device is available in plastic dual in line, DIP8 for standard assembly, and SO16W for SMD assembly.

Where to Buy

Prices starting from US$1.84

Distributor Stock
Logo for Farnell
Farnell
from US$2.08
7,649
in stock
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Logo for Future Electronics
Future Electronics
from US$1.84
32,000
in stock
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Logo for Newark Electronics
Newark Electronics
from US$2.53
7,649
in stock
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Logo for element14
element14
from US$2.91
7,649
in stock
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Logo for Transfer Multisort Elektronik
Transfer Multisort Elektronik
from US$2.50
893
in stock
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Logo for Avnet Silica
Avnet Silica
-
10,000
in stock
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Logo for Avnet America
Avnet America
from US$2.01
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Logo for EBV Elektronik
EBV Elektronik
-
-
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Features

PROTECTION AGAINST FEEDBACK DISCONNECTION
INHIBIT FOR ZERO CURRENT CONSUMPTION
SOFT START FUNCTION
THERMAL SHUTDOWN
ZERO LOAD CURRENT OPERATION
VOLTAGE FEEDFORWARD
UP TO 1.5A STEP DOWN CONVERTER
PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
OPERATING INPUT VOLTAGE FROM 8V TO 55V
SWITCHING FREQUENCY ADJUSTABLE UP TO 300KHz
INTERNAL CURRENT LIMITING (PULSE-BY PULSE AND HICCUP MODE)
OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V

Alternative Descriptions

L4971 Series 55 V 300 uA 110 kHz Buck SMT Switching Regulator - SOIC-16 | Future Electronics
Dc/Dc Conv, Buck, 300Khz, 150Deg C | Newark Electronics
DC/DC CONV, BUCK, 300KHZ, 150DEG C | element14
IC: driver | Transfer Multisort Elektronik
Conv DC-DC Single Step Down 8V to 55V 16-Pin SO W T/R | Avnet Silica


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L4971D013TR?

Additional datasheets, footprints and schematics for L4971D013TR are listed on our Part Details page. You can also find images and similar parts to L4971D013TR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L4971D013TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L4971D013TR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L4971D013TR fall under?

The L4971D013TR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to L4971D013TR 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 L4971D013TR you can contact the distributor directly for product support, shipping queries etc.

Is the L4971D013TR RoHS compliant?

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

Which authorised distributors for L4971D013TR have stock available?

Authorised distributors including Future Electronics, Newark Electronics, element14, Farnell and Transfer Multisort Elektronik have stock available or on a lead time for L4971D013TR.

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

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