L6984TR DC-DC Switching Converters by STMicroelectronics

36 V, 400 mA synchronous step-down switching regulator


The L6984 is a step-down monolithic switching regulator able to deliver up to 400 mA DC. The output voltage adjustability ranges from 0.9 V. The fixed 3.3 V V OUT requires no external resistor divider. The “Low Consumption Mode” (LCM) is designed for applications active during car parking, so it maximizes the efficiency at light load with controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency almost constant over the load current range, serving low noise application specification like car audio/sensors. The PGOOD open collector output can implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at medium - heavy load, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing on low-side power element implements an effective constant current protection.

Where to Buy

Prices starting from US$1.16

Distributor Stock
Logo for Farnell
Farnell
from US$1.21
11,756
in stock
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Logo for Newark Electronics
Newark Electronics
from US$1.40
12,046
in stock
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Logo for element14
element14
from US$1.42
11,756
in stock
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Logo for Future Electronics
Future Electronics
from US$1.16
-
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Logo for Avnet America
Avnet America
from US$1.22
-
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Logo for EBV Elektronik
EBV Elektronik
-
-
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Logo for Avnet Silica
Avnet Silica
-
-
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Features

400 mA DC output current
4.5 V to 36 V operating input voltage
Synchronous rectification
Low consumption mode or low noise mode
75 μA IQ at light load (LCM VOUT = 3.3 V)
13 μA IQ-SHTDWN
Adjustable fSW (250 kHz - 600 kHz)
Output voltage adjustable from 0.9 V
No resistor divider required for 3.3 V VOUT
VBIAS maximizes efficiency at light load
350 mA valley current limit
Constant on-time control scheme
PGOOD open collector
Thermal shutdown

Alternative Descriptions

Dc/Dc Conv, Sync Buck, 600Khz, 150Deg C | Newark Electronics
DC/DC CONV, SYNC BUCK, 600KHZ, VFDFN-10 | element14
L6984 Series 36 V 400 mA Step-Down Switching Regulator - VFDFPN-10 4 x 4 | Future Electronics
Conv DC-DC Single Step Down 4.5V 36V 10-Pin VDFPN T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L6984TR?

Additional datasheets, footprints and schematics for L6984TR are listed on our Part Details page. You can also find images and similar parts to L6984TR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L6984TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L6984TR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L6984TR fall under?

The L6984TR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to L6984TR 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 L6984TR you can contact the distributor directly for product support, shipping queries etc.

Is the L6984TR RoHS compliant?

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

Which authorised distributors for L6984TR have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Avnet America have stock available or on a lead time for L6984TR.

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

Stock availability and lead times will be displayed for L6984TR often in real-time on the comparison pages.

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