L4978D013TR DC-DC Switching Converters by STMicroelectronics

2A Step down switching regulator

Status: Active
Series: L4978
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

The L4978 is a step down monolithic power switching regulator delivering 2A 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 R dson 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, DIP-8 for standard assembly, and SO16W for SMD assembly.

Prices starting from US$0.80


Distributor Starting From Stock
Logo for Future Electronics Future Electronics US$1.95
5,000
Buy Now
Logo for Micros Micros US$0.80
219
Buy Now
Logo for Avnet Silica Avnet Silica -
2,000
Buy Now
Logo for Newark Electronics Newark Electronics US$2.17
-
Buy Now
Logo for Avnet America Avnet America US$2.01
-
Buy Now
Logo for element14 element14 US$2.18
-
Buy Now
View Full Pricing & Stock Comparison

Features

PROTECTION AGAINST FEEDBACK DISCONNECTION
INHIBIT FOR ZERO CURRENT CONSUMPTION
SOFT START FUNCTION
THERMAL SHUTDOWN
ZERO LOAD CURRENT OPERATION
VOLTAGE FEEDFORWARD
UP TO 2A 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-BYPULSE AND HICCUP MODE)
OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V

Alternative Descriptions

L4978 Series 55 V 110 kHz 2 A SMT Step Down Swithing Regulator - SOIC-16 | Future Electronics
Step-Down Switching Regulator, 2A, Vin 8÷55V, Vout 3.3÷50V, 100kHz | Micros
Conv DC-DC Single Step Down 8V to 55V 16-Pin SO W T/R | Avnet Silica
Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 3.3V-50Vout, 2Aout, Soic-16 Rohs Compliant: Yes |Stmicroelectronics L4978D013TR | Newark Electronics
IC, SWITCHING REG, BUCK, ADJ, SOIC-16 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L4978D013TR?

Additional datasheets, footprints and schematics for L4978D013TR are listed on our Part Details page. You can also find images and similar parts to L4978D013TR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L4978D013TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L4978D013TR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L4978D013TR fall under?

The L4978D013TR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to L4978D013TR 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 L4978D013TR you can contact the distributor directly for product support, shipping queries etc.

Is the L4978D013TR RoHS compliant?

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

Which authorised distributors for L4978D013TR have stock available?

Authorised distributors including Future Electronics, Micros, Avnet Silica, Newark Electronics and Avnet America have stock available or on a lead time for L4978D013TR.

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

Stock availability and lead times will be displayed for L4978D013TR often in real-time on the comparison pages.

What if I can't find stock of L4978D013TR?

You can fill out our help required form which you can use to request a quote for L4978D013TR 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.

We use cookies to improve your experience. See our privacy policy.
Okay