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參數(shù)資料
| 型號： | R1234D231A |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| 中文描述： | 脈寬調(diào)制/ VFM的降壓型DC / DC同步整流變換器 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大?。?/td> | 876K |
| 代理商： | R1234D231A |
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R1234D
TYPICAL CHARACTERISTICS
16
1) Output Voltage vs. Output Current
R1234D181A
R1234D181B
2) Efficiency vs. Output Current
1.70
1.90
1.80
1.75
1.85
1
10
1000
100
Output Current
I
OUT
(
mA
)
O
O
(
V
IN
=3.3V PWM
V
IN
=3.3V VFM
V
IN
=5.0V PWM
V
IN
=5.0V VFM
1.70
1.90
1.80
1.75
1.85
1
10
1000
100
Output Current
I
OUT
(
mA
)
O
O
(
V
IN
=3.3V PWM
V
IN
=3.3V VFM
V
IN
=5.0V PWM
V
IN
=5.0V VFM
R1234D181A
R1234D181B
3) Output Waveform (C
OUT
=10
μ
F, tantalum, PWM)
1
10
1000
100
Output Current
I
OUT
(
mA
)
E
η
(
V
IN
=3.3V PWM
V
IN
=3.3V VFM
V
IN
=5.0V PWM
V
IN
=5.0V VFM
0
100
90
80
50
40
30
20
10
70
60
0
100
90
80
50
40
30
20
10
70
60
1
10
1000
100
Output Current
I
OUT
(
mA
)
E
η
(
%
)
V
IN
=3.3V PWM
V
IN
=3.3V VFM
V
IN
=5.0V PWM
V
IN
=5.0V VFM
R1234D181A
V
IN
=5V,
I
OUT
=200mA
R1234D181B
-0.08
0.06
-0.02
-0.06
0.02
0
-0.04
0.04
0
4
Time t(
μ
s)
10
7
3
9
6
2
1
8
5
O
ESR=400m
-0.04
0.05
0.01
-0.03
0.03
0.02
-0.01
-0.02
0
0.04
0
4
Time t(
μ
s)
10
7
3
9
6
2
1
8
5
O
V
IN
=5V,
I
OUT
=10mA
ESR=400m
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1234D231B | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D241A | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D241B | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D251A | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D251B | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1234D231B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D241A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D241B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D251A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D251B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
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