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参数资料
| 型号： | R1160N291B-TR-FA |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| 封装： | SC-74A, MINI, SOT-23, 5 PIN |
| 文件页数： | 20/35页 |
| 文件大小： | 378K |
| 代理商： | R1160N291B-TR-FA |
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R1160x
27
TECHNICAL NOTES
C1
R1160x
Series
VDD
VOUT
ECO GND
C2
CE
(External Components)
C2 : Ceramic 1.0 F Output Capacitor Ceramic 1.0 F
Ex. Murata GRM155B30J105KE18B
Kyocera CM05X5R105K06AB
C1 : Ceramic 1.0 F
When using these ICs, consider the following points:
1.Mounting on PCB
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor with a capacitance value as much as 1.0 F or more as C1 between VDD and GND pin, and
as close as possible to the pins.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as
short as possible.
2.Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the output current is varied.
For this purpose, be sure to use a 2.2 F or more capacitor COUT with good frequency characteristics and ESR
(Equivalent Series Resistance).
(Note: When the 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.)
If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable.
Evaluate your circuit with considering frequency characteristics.
Depending on the capacitor size, manufacturer, and part number, the bias characteristics and temperature
characteristics are different. Evaluate the circuit with actual using capacitors.
相关PDF资料 |
PDF描述 |
|---|---|
| R1160N301B-TR-FA | 3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| R1160N311B-TR-FA | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| R1160N331A-TR-FA | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| R1160N331B-TR-FA | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| R1160N081B-TR-FB | 0.8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R1160N301A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-MODE 200mA LDO REGULATOR |
| R1160N301B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-MODE 200mA LDO REGULATOR |
| R1160N311A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-MODE 200mA LDO REGULATOR |
| R1160N311B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-MODE 200mA LDO REGULATOR |
| R1160N321A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-MODE 200mA LDO REGULATOR |
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