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參數(shù)資料
| 型號(hào)： | SC2441ATETRT |
| 廠商： | Semtech Corporation |
| 英文描述： | 1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| 中文描述： | 1.8V至20V的輸入2相同步降壓與升壓轉(zhuǎn)換器控制器 |
| 文件頁(yè)數(shù)： | 8/37頁(yè) |
| 文件大?。?/td> | 1024K |
| 代理商： | SC2441ATETRT |
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8
2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
Block Diagram
SC2441A
Figure 2 Functional Diagram of the Step-down Controllers
IN
1
OSCILLATOR
AND
PHASE
DETECTOR
SLOPE1
+
+
ILIM1
CLK2
CLK1
R
S
Q
OL1
DSBL1
Soft-Start
And
Overload
Hiccup
Control 1
UVLO
4.3V/4.5V
Adaptive
Shoot-through
Protection
PWM1
+
ROSC
CS1+
4
CS1-
5
-
REFERENCE
+
-
ISEN1
+
-
VCC
21
BST1
25
GDH1
23
GDL1
22
PGND1
24
25mV
SS1/EN1
3
FB1
11
10
6
FAULT
GND
9
COMP1
12
VIN UVLO
1.6/1.7V
0.5V
0.35V
FREQUENCY
DIVIDER
CLK
1.25V
SLOPE
COMP
SHDN
SLOPE2
SHDN
SYNC/SHDN
GDH2
19
GDL2
20
18
PLLF
2
BST2
VCC
SLOPE2
+
ILI
R
S
Q
OL2
DSBL2
Soft-Start
And
Overload
Hiccup
Control 2
PWM2
+
FB2
14
CS2-
15
-
+
+
-
ISEN2
+
-
25mV
COMP2
13
CS2+
16
SEL
CLK2
1.25V
-
+
ANALOG
SWITCH
SS2/EN2
17
SEL
A
Y
B
Adaptive
Shoot-through
Protection
EA1
0.5V
-
+
+
1.25V
2R
R
CKOUT
28
TG1ON
1.25V
2R
R
TG2ON
EA2
0.5V
-
+
+
-
1.25V
+
A3
-
1.25V
+
A2
CH 1
CH 2
A1
MUX
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC2441 | Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| 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 |
| SC2442 | High Performance Wide Input Range Dual Synchronous Buck Controller |
| SC2442H | High Performance Wide Input Range Dual Synchronous Buck Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
| SC2441ITSTRT | 制造商:Semtech Corporation 功能描述:Controller IC |
| SC2442 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:High Performance Wide Input Range Dual Synchronous Buck Controller |
| SC2442H | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:High Performance Wide Input Range Dual Synchronous Buck Controller |
| SC2442HITSTR | 制造商:Semtech Corporation 功能描述: |
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