BD9E303EFJ-LB Datasheet, PDF (17/31 Pages) Rohm – Over-Current Protection

BD9E303EFJ-LB
Application Example
C_BOOT
VIN
CIN
1 BOOT
2 VIN
3 EN
4 _AGND
Datasheet
SW 8
PGND 7
COMP ⁶
FB 5
L
COUT
VOUT
C2 R3
R1
C1
R2
Figure 40. Application Circuit
VIN
VOUT
CIN ^{(Note 3)}
CIN1
CBOOT
L
R1
R2
R3
C1
C2
COUT ^{(Note 4)}
Table 2. Recommendation Component Valves
1.8V
10μF
0.1μF
0.1μF
4.7μH
12kΩ
15kΩ
5.6kΩ
-
15000pF
Ceramic
22μF×2
12V
3.3V
10μF
0.1μF
0.1μF
10μH
30kΩ
13kΩ
10kΩ
-
10000pF
Ceramic
22μF×2
5V
10μF
0.1μF
0.1μF
10μH
30kΩ
7.5kΩ
15kΩ
-
6800pF
Ceramic
22μF×2
24V
3.3V
5V
10μF
10μF
0.1μF
0.1μF
0.1μF
0.1μF
10μH
10μH
30kΩ
30kΩ
13kΩ
7.5kΩ
10kΩ
15kΩ
-
-
10000pF
6800pF
Ceramic
22μF×2
Ceramic
22μF×2
(Note 3)
(Note 4)
For capacitance of input capacitor, take temperature characteristics, DC bias characteristics, etc. into consideration to set minimum value to no
less than 4.7μF.
In case capacitance value fluctuates due to temperature characteristics, DC bias characteristics, etc. of output capacitor, crossover frequency
may fluctuate.
When selecting a capacitor, confirm the characteristics of the capacitor in its datasheet.
Also, in order to reduce output ripple voltage, low ESR capacitors such as ceramic type are recommended for output capacitor.
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TSZ22111•15•001
17/28
TSZ02201-0J3J0AJ00650-1-2
13.Feb.2015 Rev.002