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STBB3J 数据表(PDF) 1 Page - STMicroelectronics |
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STBB3J 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 25 page  This is information on a product in full production. December 2015 DocID025263 Rev 5 1/25 25 STBB3J 2 A, high efficiency single inductor buck-boost DC-DC converter Datasheet - production data 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 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. Flip Chip 20, pitch = 0.4 mm Table 1. Device summary Order code Part number Marking Packing Output voltage STBB3JR STBB3J BB3 Flip Chip 20 Adjustable www.st.com |
类似零件编号 - STBB3J |
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类似说明 - STBB3J |
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