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| 型号： | BD18KA5WF-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.8V .5A SOP8 |
| 特色产品： | CMOS LDO Regulators |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.8V |
| 输入电压： | 2.3 V ~ 5.5 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA（最小值） |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-SOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1370 (CN2011-ZH PDF) |
| 其它名称： | BD18KA5WF-E2DKR |
BDxxKA5 Series BDxxKA5W Series
BD00KA5W Series
Datasheet
● Vo Terminal
Please be sure to attach an anti-oscillation capacitor between V o and GND.
100
Oscillation region
発振領域
IC
OUT
10
安 定 領域
Stable region
1 μ F
1
Vcc
Cin
1 μ F
OUT 1 μ F
Vcc
CTL GND ADJ R2
ESR
0.1
V CTL
2V
R1
Io(R OUT )
R1=30k Ω ,R2=2k Ω
0.01
0
100
200
300
400
500
Iout(m
Io(mA)
Fig.24 Output Equivalent Circuit
Fig.25 ESR-Io Characteristics
Be sure to place an anti-oscillation capacitor between the output terminal and the GND. Oscillations may arise if the
capacitance value changes, due to factors such as temperature changes. A 1 μ F capacitor with small internal series resistance
(ESR) such as a ceramic capacitor is recommended as an anti-oscillation capacitor. Ceramic capacitors generally have
favorable temperature characteristics and DC bypass characteristics. When selecting a ceramic capacitor, a high voltage
capacitor (good DC bypass characteristics) with temperature characteristics that are superior to those of X5R or X7R, is
recommended. In applications where input voltage and load fluctuations are rapid, please decide on a capacitor after
sufficiently confirming its properties according to its specifications in the actual application.
120
120
50V Max.Input
120
100
50V Max.Input
100
100
80
80
16V Max.Input
80
X7R
60
60
60
Y5V
X5R
40
16V Max.Input
40
10V Max.Input
40
10V Max.Input
20
0
20
0
20
0
Vdc=0
0
1
2
3
4
0
1
2
3
4
-25
0
25
50
75
直流バイアスVdc （V)
直流バイアスVdc （V)
DC bypass Vdc(V)
DC bypass Vdc(V)
℃ )
Temp( ℃)
(a)
Capacitance-bypass
characteristics (Y5V)
（ b ） Capacitance-bypass
characteristics （ X5R,X7R ）
（ C ） Capacitance-temperature
characteristics （ X5R,X7R,Y5V ）
Fig.26 General characteristics of ceramic capacitors
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
11/15
TSZ02201-0R6R0A600150-1-2
26.Jun.2012 Rev.001
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相关代理商/技术参数 |
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| BD18KA5WFP | 制造商:ROHM 制造商全称:Rohm 功能描述:500mA Secondary LDO Regulators for Local Power Supplies |
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