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參數(shù)資料
| 型號： | RP131S291D-E2-FE |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PDSO6 |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, HSOP-6 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大小： | 357K |
| 代理商： | RP131S291D-E2-FE |
RP131x
7
TYPICAL APPLICATION
C1
RP131x
Series
VDD
VOUT
CE
GND
C2
VOUT
Recommendation value of the external capacitors
VOUT
Capacitors
C1
Kyocera 2.2
μF (size:1005) [CM05X5R225M04AB]
VOUT ≤ 3.6V
C2
Kyocera 2.2
μF (size:1608) [CM105X5R225K06AB]
C1
Kyocera 2.2
μF (size:1608) [CM105X5R225K06AB]
VOUT > 3.6V
C2
Kyocera 4.7
μF (size:1608) [CM105X5R475M06AB]
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor C2 with good frequency characteristics and ESR (Equivalent Series Resistance).
If a tantalum capacitor is used, and its ESR of C2 is large, the loop oscillation may result. Because of this,
select C2 carefully considering its frequency characteristics.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 between VDD and GND pin with a capacitance value as "Recommendation value of the
external capacitors" above or more, and as close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring
as short as possible.
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