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| 型號： | SP6656 |
| 英文描述： | High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| 中文描述： | 高效率400mA同步降壓穩(wěn)壓器的可編程輸出位 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 185K |
| 代理商： | SP6656 |
13
Date: 7/9/04
SP6656 High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output Copyright 2004 Sipex Corporation
The output voltage is programmed by the external divider, as shown in the typical
application circuit on Page 1. Depending on the topology used, 1 or 2 output ,V
OUT
is
set as follows:
APPLICATION INFORMATION
1) Single V
OUT
First pick a value for RI that is no larger than 300K.
Too large a value of RI will reduce the AC voltage
seen by the loop comparator since the internal FB
pin capacitance can form a low pass filter with RF
in parallel with RI. The formula for RF with a given
RI and output voltage is:
R
F
= (V
OUT
/ 0.8V - 1) x (R
I
)
2) Dual V
OUT
(selectable)
First pick the lowest voltage that will be used and
utilize the same method as above.
R
F
= (V
OUT_LOW
/ 0.8V - 1) x (R
I
) R
I
≤
300k
Then use the following equation to determine R
S:
[R
I
//R
S
] =
VO
FB
V
OUT
OVSO
R
F
CF
22pF
R
I
R
S
VO
FB
V
OUT
R
F
CF
22pF
R
I
- 0.8
V
OUT_HIGH
0.8 x R
F
R
S =
[R
I
//R
S
]
R
I
[R
I
//R
S
]
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6656_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output |
| SP6656EB | 功能描述:電源管理IC開發(fā)工具 Hi-Efficiency 400mA Sync Buck Regulator RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SP6656ER | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| SP6656ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| SP6656ER3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output |
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