STOD13ATPUR Datasheet, PDF (4/24 Pages) STMicroelectronics – 250 mA dual DC-DC converter for powering AMOLED displays

Schematic
1
Schematic
STOD13A
Figure 1. Application schematic
VBAT
L1
CIN
S-Wire
EN
FD
CREF
VINP
VINA
Swire
LX1
VMID
STOD13A
EN
VO2
FD
VREF
PGND AGND LX2
L2
CMID
CO2
AM10430v1
Table 2. Typical external components
Comp. Manufacturer
Part number
Value
Size
Ratings
L₁ ⁽¹⁾
L₂ ⁽²⁾
C_IN
C_MID
CoilCraft
Murata
SEMCO
ABCO
LPS4012-472ML
LQH3NPN4R7MJ0
CIG22B4R7MNE
LPF2810T-4R7M
4.7µH
4.0 x 4.0 x 1.2
3.0 x 3.0 x 1.1
2.5 x 2.0 x 1.0
2.8 x 2.8 x 1.0
±20%, curr. 1.7A, res. 0.175Ω
±20%, curr. 1.1A, res. 0.156Ω
±20%, curr. 1.1A, res. 0.300Ω
±20%, curr. 0.85A, res. 0.33Ω
CoilCraft
Murata
TOKO
LPS4012-472ML
LQH3NPN4R7MJ0
4. 7µH
DFE252012C 1239AS-H-4R7N
4.0 x 4.0 x 1.2
3.0 x 3.0 x 1.1
2.5 x 2.0 x 1.2
±20%, curr. 1.7A, res. 0.175Ω
±20%, curr. 1.1A, res. 0.156Ω
±30%, curr. 1.2A, res. 0.252Ω
Murata
Taiyo Yuden
GRM219R61A106KE44
LMK212BJ106KD-T
2x
10µF
0805
0805
±10%, X5R, 10V
±10%, X5R, 10V
Murata
Taiyo Yuden
GRM219R61A106KE44
LMK212BJ106KD-T
10µF
0805
0805
±10%, X5R, 10V
±10%, X5R, 10V
C_O2
C_REF
Murata
Taiyo Yuden
Murata
Taiyo Yuden
GRM219R61A106KE44
LMK212BJ106KD-T
GRM185R60J105KE26
JMK107BJ105KK-T
2x
10µF
1µF
0805
0805
0603
0603
±10%, X5R, 10V
±10%, X5R, 10V
±10%, X5R, 6.3V
±10%, X5R, 6.3V
1. A 250 mA load can be provided with inductor saturation current as a minimum of 0.9 A.
2. At -6.4 V, a 250 mA load can be provided with inductor saturation current as a minimum of 1.5 A. See Section 7.1.1.
Note:
All the above components refer to the typical application performance characteristics.
Operation of the device is not limited to the choice of these external components. Inductor
values ranging from 3.3 µH to 6.8 µH can be used together with the STOD13A.
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Doc ID 022599 Rev 1