STBB1-AXX Datasheet, PDF (2/24 Pages) STMicroelectronics – Buck-boost DC-DC converter

Contents
Contents
STBB1-AXX
1 Block diagram.................................................................................. 5
2 Absolute maximum ratings............................................................. 6
3 Pin configuration ............................................................................. 7
4 Typical application .......................................................................... 8
5 Electrical characteristics ................................................................ 9
6 Detailed description ...................................................................... 11
6.1 General description ......................................................................... 11
6.2 Dual mode operation ....................................................................... 11
6.3 External synchronization ................................................................. 12
6.4 Enable pin ....................................................................................... 12
6.5 Protection features .......................................................................... 12
6.5.1 Soft-start and short-circuit ................................................................ 12
6.5.2 Undervoltage lockout........................................................................ 12
6.5.3 Overtemperature protection ............................................................. 12
7 Typical performance characteristics ........................................... 13
8 Application information ................................................................ 16
8.1 Programming the output voltage ..................................................... 16
8.2 Inductor selection ............................................................................ 16
8.3 Input and output capacitor selection................................................ 17
9 Recommended PCB layout ........................................................... 18
10 Package mechanical data ............................................................. 20
10.1 DFN10 (3X3 mm) mechanical data ................................................. 20
11 Revision history ............................................................................ 23
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DocID022197 Rev 4