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STBB3J

STMicroelectronics
Part Number STBB3J
Manufacturer STMicroelectronics
Description high efficiency single inductor buck-boost DC-DC converter
Published Mar 22, 2016
Detailed Description STBB3J 2 A, high efficiency single inductor buck-boost DC-DC converter Datasheet - production data Flip Chip 20, pitch...
Datasheet PDF File STBB3J PDF File

STBB3J
STBB3J


Overview
STBB3J 2 A, high efficiency single inductor buck-boost DC-DC converter Datasheet - production data Flip Chip 20, pitch = 0.
4 mm 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 Applications • Single cell Li-Ion, two-cell and three-cell alkaline, Ni-MH powered devices • Memory card supply • Tablet, smartphones • Digital cameras Description 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-RDS(on) N-channel and Pchannel 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.
Order code STBB3JR Table 1.
Device summary Part number Marking Packing STBB3J BB3 Flip Chip 20 Output voltage Adjustable December 2021 This is information on a product in full productio...


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