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參數(shù)資料
| 型號(hào)： | R1234D121A |
| 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)： | 10/26頁 |
| 文件大?。?/td> | 876K |
| 代理商： | R1234D121A |
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R1234D
TYPICAL APPLICATION AND TECHNICAL NOTES
1) Fixed Output Voltage Type
1
10
L
V
OUT
C
IN
C
OUT
LOAD
Lx
V
IN
CE
V
OUT
MODE
V
DD
AGND
PGND
2
3
4
8
7
6
5
C
IN
C
OUT
L
10
μ
F C3216JB0J106M (TDK)
10
μ
F ECSTOJX106R (Panasonic)
10
μ
H LQH3C100K54 (Murata)
2) Adjustable Output Voltage Type
L
V
OUT
C
IN
C
OUT
Cb
R1
R2
LOAD
Rb
Lx
V
IN
CE
V
OUT
MODE
V
DD
AGND
PGND
1
2
3
4
8
7
6
5
C
IN
C
OUT
L
10
μ
F C3216JB0J106M (TDK)
10
μ
F ECSTOJX106R (Panasonic)
10
μ
H LQH3C100K54 (Murata)
VFM mode may work with a parasitic diode, but we recommend that VFM mode used with an external diode in
between L
X
and GND. As for PWM mode, an external diode is not necessary.
As for how to choose Cb, Rb, R1, and R2 values, refer to the technical notes.
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PDF描述 |
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| R1234D121B | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
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| R1234D131B | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D141A | PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier |
| R1234D141B | 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 |
|---|---|
| R1234D121B | 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 |
| R1234D131A | 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 |
| R1234D131B | 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 |
| R1234D141A | 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 |
| R1234D141B | 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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