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參數(shù)資料
| 型號： | R1114Q371D-TR-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： | 3.7 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, SC-82AB, 4 PIN |
| 文件頁數(shù)： | 14/23頁 |
| 文件大?。?/td> | 282K |
| 代理商： | R1114Q371D-TR-FE |
R1114x
21
ESR vs. Output Current
When using these ICs, consider the following points:
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance)
of which is in the range described as follows:
GND
VOUT
CE
VIN
IOUT
ESR
R1114xxx1B/D
S.A.
Ceramic
Cap.
Ceramic
Cap.
Spectrum
Analyzer
Measuring Circuit for white noise; R1114xxx1B/D
The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions
when the white noise level is under 40
μV (Avg.) are marked as the hatched area in the graph.
(Note: If additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase
compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
<Measurement conditions>
(1) VIN
=VOUT+1V
(2) Frequency Band: 10Hz to 2MHz
(3) Temperature:
40°C to 25°C
R1114x151x
R1114x161x
100
10
1
0.1
0.01
Load Current IOUT (mA)
060
30
150
120
ESR
(
Ω
)
90
CIN=Ceramic 1.0
μF,
COUT=Ceramic 1.0
μF
100
10
1
0.1
0.01
Load Current IOUT (mA)
060
30
150
120
ESR
(
Ω
)
90
CIN=Ceramic 0.47
μF,
COUT=Ceramic 0.68
μF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1114Q381A-TR-FE | 3.8 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
| R1114Q381B-TR-FE | 3.8 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
| R1114Q381D-TR-FE | 3.8 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
| R1114Q391A-TR-FE | 3.9 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
| R1114Q391B-TR-FE | 3.9 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO4 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1114Q381A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
| R1114Q381B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
| R1114Q381D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
| R1114Q391A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
| R1114Q391B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
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