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參數(shù)資料
| 型號(hào)： | SC2441 |
| 廠商： | Semtech Corporation |
| 英文描述： | Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| 中文描述： | 非常低的輸入電壓2相同步降壓與升壓轉(zhuǎn)換器控制器 |
| 文件頁(yè)數(shù)： | 8/35頁(yè) |
| 文件大?。?/td> | 733K |
| 代理商： | SC2441 |
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8
2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
Block Diagram
SC2441
Figure 2
IN
1
SYNC/SHDN
6
OSCILLATOR
EA1
+
SLOPE1
+
ILI
CLK2
CLK1
R
S
Q
OL
DSBL
Soft-Start
And
Overload
Hiccup
Control 1
UVLO
4.45/4.65V
Step-down Controllers Functional Diagram
Non-Overlapping
Conduction
Control
PWM1
+
ROSC
10
FB1
CS1+
4
CS1-
5
-
-
+
REFERENCE
0.5V
+
-
ISEN1
+
-
50mV
-
+
Σ
VCC
21
BST1
25
GDH1
23
PVIN
28
GDL1
22
PGND
SS1/EN1
COMP1
12
VPN1
26
24
3
11
FAULT
GND
9
VIN UVLO
1.60/1.74V
0.5V
0.36V
FREQUENCY
DIVIDER
CLK
1.25V
SLOPE
COMP
SHDN
SLOPE2
SHDN
Non-Overlapping
Conduction
Control
GDH2
19
GDL2
20
SS2/EN2
VPN2
18
2
17
BST2
VCC
PVIN
EA2
+
SLOPE2
+
ILI
R
S
Q
OL
DSBL
Soft-Start
And
Overload
Hiccup
Control 2
PWM2
+
FB2
CS2+
16
CS2-
15
-
-
+
0.5V
+
-
ISEN2
+
-
50mV
Σ
COMP2
13
14
FAULT
SEL
CLK2
1.25V
ANALOG SWITCH
SEL
A
Y
B
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| SC2441EVB | Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441ITSTRT | Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC2441A | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441A_09 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441AEVB | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441ATETRT | 制造商:Semtech Corporation 功能描述: |
| SC2441EVB | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
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