STBB1-AXX STMicroelectronics, STBB1-AXX Datasheet - Page 7

• Manufacturer Part Number: STBB1-AXX
• Description: 1 A, high efficiency single inductor dual mode buck-boost DC-DC converter
• Manufacturer: STMicroelectronics

Specifications of STBB1-AXX

• Typical Efficiency: > 94%

STBB1-AXX
Table 5.
1. Above listed components refer to typical application. Operation of the STBB1-A is not limited to the choice of these external
2. R1 and R2 are calculated according to the following formula:
R1 = R2 x (V
Suggested value for R2 is 100 kΩ. In order to reduce the quiescent current a maximum value of 500 kΩ is possible.
components.
Component
COUT
CIN
R1
R2
L
OUT
List of external components
/V
FB
- 1)
Manufacturer
Coilcraft
Murata
Murata
TDK
Doc ID 022197 Rev 2
(1)
GRM21BR71A106KE51L
GRM21BR60J226ME39L
VLCF4020T-2R2N1R7
560 kΩ (V
XFL4020-222ME
Part number
100 kΩ
O
= 3.3 V)
2.2 µH
Value
10 µF
22 µF
(2)
Typical application
4 x 4 x 2 mm
4 x 4 x 2 mm
0805
0805
0402
0402
Size
7/22