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STBB2 Datasheet, PDF (14/25 Pages) STMicroelectronics – 800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter
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Typical performance characteristics
Figure 16. VIN = from 3.6 V to 4 V, VOUT = 3.4 V, IOUT = 300 mA
STBB2
Input Voltage 400 mV/div,
Offset = 3.6 V
Output voltage
20 mV/div
Timebase 1 msec
Figure 17. Startup after enable (VOUT = 3.3 V, VIN = 2.4 V, IOUT = 300 mA)
SW2
SW1
VOUT
ISW
Figure 18. Startup after enable (VOUT = 3.3 V, VIN = 4.2 V, IOUT = 300 mA)
SW2
SW1
VOUT
ISW
14/25
DocID022745 Rev 9
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