STBB2 Datasheet, PDF (3/25 Pages) STMicroelectronics – 800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter

STBB2
1
Application schematic
Application schematic
Figure 1. Application schematic for fixed version
L1
VBAT
C1
C2
SW1 SW2
VIN
VOUT
VINA
FB
VINA1
MODE
EN
BP
VSEL
PGND
GND
C3
C4
Figure 2. Application schematic for adjustable version
L1
VBAT
C1
C2
SW1 SW2 _VOUT
VIN
R1
VINA
FB
VINA1
R2
VSEL
EN
BP
MODE
PGND
GND
C3
C4
Note:
Table 2. Typical external components
Component Manufacturer
Part number
Value
Size
C1
C2
C3, C4
L⁽¹⁾
R1
R2
Murata
TDK-EPC
GRM188R60J106M
C1608X5R0J106M
10 µF
0603
Murata
GRM188R61C105K
1 µF
0603
Murata
TDK-EPC
GRM188R60J106M
C1608X5R0J106M
10 µF
0603
Murata
LQH3NPN1R0NM0
3 x 3 x 1.4 mm
Coilcraft
LPS3015-102ML
1.0 µH
3.0 x 3.0 x 1.5 mm
TDK-EPC
VLS252010ET1R0N
2.5 x 2 x 1 mm
Depending on the output voltage, 0 Ω for fixed output version
Depending on the output voltage, not used for fixed output
version
1. Inductor used for the maximum power capability. Optimized choice can be made according to the
application conditions (see Section 8).
All the above components refer to a typical application. Operation of the device is not limited
to the choice of these external components.
DocID022745 Rev 9
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