S-8363B-I6T1U2 Datasheet, PDF (23/50 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM/PFM SWITCHABLE SWITCHING REGULATOR
Rev.2.0_01
S-8363 Series
2. A power supply started by 0.9 V
Following shows a power supply example which starts up by using the final voltage (0.9 V) of dry cells and its
characteristics.
L
SD
VOUT
VDD
VOUT CONT
CFB
RFB1
CIN
ON/OFF S-8363
Series
FB
0.1 μF
RFB2
VSS
COUT
Figure 19 Circuit Example (For a power supply started by 0.9 V)
Condition
1
2
3
4
5
6
Table 13 External Parts Examples (For a power supply started by 0.9 V)
Output IC Product
Voltage
Name
L Product
Name
SD Product
Name
COUT Product Name RFB1
3.3 V S-8363B
VLF302510 RB161M-20TR
LMK212BJ106KD
68 kΩ
3.3 V S-8363B
VLF302510 RB051LA-40TR LMK212BJ106KD
68 kΩ
3.3 V S-8363B
VLF302510 RB070M-30TR
LMK212BJ106KD
68 kΩ
3.3 V S-8363B
VLF302510 RB161SS-20T2R LMK212BJ106KD
68 kΩ
3.3 V S-8363B
VLF302510 CRS02
LMK212BJ106KD
68 kΩ
3.3 V S-8363B
VLF302510 CRS08
LMK212BJ106KD
68 kΩ
RFB2
15 kΩ
15 kΩ
15 kΩ
15 kΩ
15 kΩ
15 kΩ
CFB
47 pF
47 pF
47 pF
47 pF
47 pF
47 pF
Caution
The above connection will not guarantee successful operation. Perform thorough evaluation using an
actual application to set the constant.
23