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參數(shù)資料
| 型號： | RH5RI303B |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | VFM STEP-UP DC/DC CONVERTER |
| 中文描述： | 衡工量值式升壓型DC / DC變換器 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 179K |
| 代理商： | RH5RI303B |
5
ELECTRICAL CHARACTERISTICS
RH5RI301B
Symbol
Item
V
OUT
Output Voltage
V
IN
Input Voltage
Vstart
Start-up Voltage
Vhold
Hold-on Voltage
I
IN
1
Input Current 1
I
IN
2
Input Current 2
I
LX
Lx Switching Current
I
LX
leak
Lx Leakage Current
fosc
Maximum Oscillator
Frequency
Maxdty
Oscillator Duty Cycle
η
Efficiency
V
LX
lim
V
LX
Voltage Limit
Conditions
MIN.
TYP.
MAX.
Unit
Note
2.925
3.000
3.075
V
8
V
I
OUT
=1mA,V
IN
:0
→
2V
0.8
0.9
V
I
OUT
=1mA,V
IN
:2
→
0V
0.7
V
To be measured at V
IN
at no load
4
8
μA
To be measured at V
IN
V
IN
=3.5V
2
5
μA
V
LX
=0.4V
60
mA
V
LX
=6V,V
IN
=3.5V
0.5
μA
80
100
120
kHz
on (V
LX
“L” ) side
65
75
85
%
70
80
%
Lx Switch On
0.65
0.8
1.0
V
Note
V
OUT
=3.0V
RH5RI
Unless otherwise provided, V
IN
=1.8V, Vss=0V, I
OUT
=10mA, Topt=25C, and use External Circuit of Typical
Application (FIG. 1).
(Note) I
LX
is gradually increased by the external inductor after Lx Switch is turned ON. In accordance with the increase of I
LX
, V
LX
is also increased.
When V
LX
reaches V
LX
lim
, Lx Switch is turned OFF by Lx Switch Protection Circuit. The time period from the time at which V
LX
reaches V
LX
lim
to
the time at which Lx Switch is turned OFF is about 3μs.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| RH5RI303B-T1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER |
| RH5RI303B-T2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER |
| RH5RI311A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| RH5RI312B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| RH5RI313B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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