STBB3JR DC-DC Switching Converters by STMicroelectronics

2A, 2MHz, high efficiency dual mode buck-boost DC-DC converter


The STBB3J is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 5.5 V starting from input voltage from 1.8 V to 5.5 V. The device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for cell lithium-Ion applications where the output voltage is within the battery voltage range. The low-R DS(on) N-channel and P-channel MOSFET switches are integrated and contribute to achieve high efficiency. The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage from either lower power consumption or best dynamic performance.The device also includes soft-start control, thermal shutdown, and current limit. The STBB3J is packaged in Flip Chip 20 bumps with 2.5 x 1.75 mm.

Where to Buy

Prices starting from US$1.61

Distributor Stock
Logo for Farnell
Farnell
from US$1.82
No stock
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Logo for Newark Electronics
Newark Electronics
from US$1.61
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Logo for Future Electronics
Future Electronics
from US$1.70
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Logo for Avnet America
Avnet America
from US$1.80
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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

Input voltage range from 1.8 V to 5.5 V
2 A output current at 3.3 V in buck mode (VIN = 3.6 V to 5.5 V)
800 mA output current at 3.3 V in boost mode (VIN 2.0 V)
Typical efficiency higher than 94%
± 2% DC feedback voltage tolerance
Automatic transition between step-down and boost mode
Adjustable output voltage from 1.2 V to 5.5 V
Power save mode (PS) at light load
2.0 MHz fixed switching frequency
Adjustable switching frequency up to 2.4 MHz (by external synchronous square signal)
Device quiescent current less than 50 μA
Load disconnect during shutdown
Shutdown function and soft-start
Shutdown current < 1 μA
Available in Flip Chip 20, pitch = 0.4 mm

Alternative Descriptions

Dc/Dc Conv, Buck-Boost, 2Mhz, 85Deg C | Newark Electronics
DC-DC SWITCHING CONVERTERS | Future Electronics
DC/DC Switching Regulator, Adjustable, Synchronous Buck-Boost, 1 Output, 1.2 V to 5.5 V, 2 A, 2 MHz, 20 Pins, Flip Chip | Avnet America
DC/DC CONV, BUCK-BOOST, 1MHZ, FLIPCHIP | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a STBB3JR?

Additional datasheets, footprints and schematics for STBB3JR are listed on our Part Details page. You can also find images and similar parts to STBB3JR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for STBB3JR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view STBB3JR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does STBB3JR fall under?

The STBB3JR is listed under Power Management > DC-DC Switching Converters > Buck-Boost Regulators.

Can I view similar or alternative parts?

You can view similar parts to STBB3JR when available in the Buck-Boost 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 STBB3JR you can contact the distributor directly for product support, shipping queries etc.

Is the STBB3JR RoHS compliant?

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

Which authorised distributors for STBB3JR have stock available?

Authorised distributors including Newark Electronics, Future Electronics, Avnet America, Farnell and EBV Elektronik have stock available or on a lead time for STBB3JR.

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

Stock availability and lead times will be displayed for STBB3JR often in real-time on the comparison pages.

What if I can't find stock of STBB3JR?

You can fill out our help required form which you can use to request a quote for STBB3JR 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.

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