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參數(shù)資料
| 型號(hào)： | R1131N291A-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器 |
| 英文描述： | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 16/19頁 |
| 文件大?。?/td> | 276K |
| 代理商： | R1131N291A-TR |
R1131x
6
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, be sure to use a 1.0
F or more capacitor COUT with good frequency characteristics and ESR
(Equivalent Series Resistance).
(Note: If a tantalum capacitor is connected to the Output pin for phase compensation, if the ESR value of the
capacitor is too large, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
Chip capacitor characteristics of Bias dependence and Temperature characteristics may vary depending on its
size, manufacturer, and part number.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, pick-up the noise or unstable operation may
result. Connect a capacitor with as much as 1.0mF capacitor between VDD and GND pin as close as possible.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as
short as possible.
TYPICAL APPLICATION
VDD
GND
CE
OUT
R1131xxxxx
SERIES
A
IOUT
C2
C1
VIN
External Components examples:
CM05X5R105K06AB (Kyocera)
C1005JBOJ105K (TDK)
GRM155B30J105KE18B (Murata)
Output Capacitor; 1.0
F or more capacity ceramic Type (If VOUT<1.0V, Tantalum Type is recommended)
Input Capacitor, 1.0
F or more capacity ceramic Type
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1131N291B-TR | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| R1131N301A-TR | 3 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| R1131N301B-TR | 3 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| R1131N301D-TR | 3 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| R1131N311A-TR | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1131N291B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:R1131N SERIES MARK SPECIFICATION |
| R1131N291D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:R1131N SERIES MARK SPECIFICATION |
| R1131N301A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:R1131N SERIES MARK SPECIFICATION |
| R1131N301B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:R1131N SERIES MARK SPECIFICATION |
| R1131N301D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:R1131N SERIES MARK SPECIFICATION |
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