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参数资料
| 型号： | R1152N058B-TR |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, PDSO5 |
| 封装： | MINI, SOT-23, 5 PIN |
| 文件页数： | 9/21页 |
| 文件大小： | 346K |
| 代理商： | R1152N058B-TR |
R1152N
17
Adjustable Resister vs. Output Voltage (Topt=25°C)
R1125N025B
0
6
30
24
18
12
020
60
80
40
100
Resistance R2(k
)
Output
Voltage
V
OUT
(V)
R3=10k
Topt=25
°C
0
6
30
24
18
12
0
200
600
800
400
1000
R3=100k
Topt=25
°C
Resistance R2(k
)
Output
Voltage
V
OUT
(V)
For Stable Operation
Phase Compensation
In these ICs, phase compensation is externally made for securing stable operation even if the load current is
varied. For this purpose, be sure to use a capacitor for the output pin with good frequency characteristics and
ESR (Equivalent Series Resistance) of which is in the range described as follows:
VIN
CE
GND
EXT
VOUT
COUT
OUT
PNP Tr
CIN
Ceramic
Capacitor
0.1
F
Spectrum
Analyze
IN
Ceramic
Capacitor
10
F
ESR
IOUT
S.A
Measuring Circuit for white noise; R1152NxxxB
The relations between IOUT (Output Current) and ESR of Output Capacitor are shown below. The conditions
when the white noise level is under 40
V (Avg.) are marked as the hatched area in the graph.
<Measurement conditions>
(1)VIN
=VOUT+1V
(2)Frequency band: 10Hz to 1MHz
(3)Temperature: 25°C
(4)COUT: Ceramic 10
F; ESR=0.075(10kHz)
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