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參數(shù)資料
| 型號(hào)： | R1140Q281D |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | SC82 120mA LDO REGULATOR |
| 中文描述： | SC82一二○毫安LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 181K |
| 代理商： | R1140Q281D |
R1140Q
5
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25°C
Dropout Voltage
V
DIF
(V)
Output Voltage
V
OUT
(V)
Condition
TYP.
MAX.
1.5
≤
V
OUT
≤
1.6
0.36
0.70
1.7
≤
V
OUT
≤
1.8
0.30
0.50
1.9
≤
V
OUT
≤
2.0
0.28
0.45
2.1
≤
V
OUT
≤
2.7
0.24
0.40
2.8
≤
V
OUT
≤
4.0
I
OUT
= 120mA
0.18
0.30
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 2.2μF or more capacitor C
OUT
with good frequency characteristics and ESR (Equivalent Se-
ries Resistance).
(Note: When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase com-
pensation, the operation might be unstable. Because of this, test these ICs with as same external components as ones
to be used on the PCB.)
PCB Layout
Make V
DD
and GND line sufficient. When the impedance of these is high, it would be a cause of picking up the noise
or unstable operation. Connect a capacitor with as much as 1.0μF capacitor between V
DD
and GND pin as close as pos-
sible.
Set external components, especially output capacitor as close as possible to the ICs and make wiring shortest.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1140Q281D-TL | CAPACITOR, CASE S, 1UF, 35V; Application:Solid; Capacitance:1uF; Tolerance, capacitance:10%; Series:TAJ; Voltage, rating:35V; Capacitor dielectric type:Tantalum Electrolytic; Case style:S; Current, leakage:0.5uA; Depth, RoHS Compliant: Yes |
| R1140Q281D-TR | SC82 120mA LDO REGULATOR |
| R1140Q401B | SC82 120mA LDO REGULATOR |
| R1140Q401B-TL | SC82 120mA LDO REGULATOR |
| R1140Q401B-TR | SC82 120mA LDO REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1140Q281D-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:SC82 120mA LDO REGULATOR |
| R1140Q281D-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:SC82 120mA LDO REGULATOR |
| R1140Q291B-TL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| R1140Q291B-TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| R1140Q291D-TL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
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