ST1S50PUR DC-DC Switching Converters by STMicroelectronics

4 A Monolithic synchronous step-down converter with high efficiency at light load

Status: Active
Series: ST1S50
RoHS: Compliant
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The ST1S50 device is a 500 kHz fixed frequency PWM synchronous step-down regulator. The ST1S50 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x V IN . The ST1S50 device integrates a 95 mΩ high-side switch and a 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages. The peak current mode control with a special PFM mode enables high efficiency at a light load. The ST1S50 device is available in a VFDFPN10 3 x 3 x 1 mm - 10 leads package.

Prices starting from US$0.87


Distributor Starting From Stock
Logo for Avnet America Avnet America US$1.16
12,000
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Logo for Newark Electronics Newark Electronics US$0.87
716
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Logo for Avnet Silica Avnet Silica -
21,000
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Logo for Future Electronics Future Electronics US$1.13
-
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Logo for element14 element14 US$1.18
-
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Features

4 A output current
4.0 V to 18 V input voltage
Output voltage adjustable from 0.8 V to 0.88 x VIN
500 kHz switching frequency
High efficiency at light load
Programmable soft-start and enable
Integrated 95 mΩ and 69 mΩ power MOSFETs
All ceramic capacitor
Power Good
Cycle-by-cycle current limiting
Short-circuit protection
VFDFPN10 3 x 3 x 1 mm - 10 L

Alternative Descriptions

DC/DC Switching Regulator, Adjustable, Synchronous Buck (Step Down), 1 Output, 800 mV to 16 V, 4 A, 500 kHz, 10 Pins, VFDFPN-EP | Avnet America
Dc/Dc Conv, Sync Buck, 500Khz, 150Deg C | Newark Electronics
ST1S50 Series 18 V 4 A 600 KHz Step-Down Switching Converter - VFDFPN-8 | Future Electronics
DC/DC CONV, SYNC BUCK, 500KHZ, VFDFN-8 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ST1S50PUR?

Additional datasheets, footprints and schematics for ST1S50PUR are listed on our Part Details page. You can also find images and similar parts to ST1S50PUR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for ST1S50PUR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view ST1S50PUR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does ST1S50PUR fall under?

The ST1S50PUR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to ST1S50PUR 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 ST1S50PUR you can contact the distributor directly for product support, shipping queries etc.

Is the ST1S50PUR RoHS compliant?

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

Which authorised distributors for ST1S50PUR have stock available?

Authorised distributors including Avnet America, Newark Electronics, Avnet Silica, Future Electronics and element14 have stock available or on a lead time for ST1S50PUR.

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

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