参数资料
| 型号： | SC2443MLTRT |
| 厂商： | Semtech |
| 文件页数： | 4/22页 |
| 文件大小： | 0K |
| 描述： | IC DUAL SYNC STP-DN CTRLR 24MLPQ |
| 标准包装： | 1 |
| 应用： | 控制器，DDR |
| 输入电压： | 4.75 V ~ 16 V |
| 输出数： | 2 |
| 输出电压： | 可调至 0.5V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-MLPQ |
| 供应商设备封装： | 24-MLPQ（4x4） |
| 包装： | 标准包装 |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC2443MLDKR |
SC2443
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Channel 2 Error Amplifier
Inverting Input Voltage Range
InputCommon-modeRange ( )
( )
Input Offset Voltage
0
0
.5
3
AVCC
V
V
mV
Non-inverting Input Bias Current
Inverting Input Bias Current
Inverting Input Voltage for 2 phases
Single Output Operation
Amplifier Transconductance
Amplifier Open Loop Gain
Amplifier Unity Gain Bandwidth
COMP2 Switching Threshold
Amplifier Output Sink Current
Amplifier Output Source Current
I IN2+
I IN2-
G M2
A OL2
V CS2+ =V CS2- = 0, V SS2 Rising
V COMP2 = 2.5V
V COMP2 = 2.5V
2.5
- 50
- 00
260
65
5
2.2
6
2
-380
-250
nA
nA
V
μ W -1
dB
MHz
V
μA
μA
Oscillator
Channel Frequency
f CH , f CH2
450
500
550
kHz
Synchronizing Frequency
SYNCInputHighVoltage
SYNC Input Low Voltage
( )
2. f CH
.5
0.5
kHz
V
V
Channel Maximum Duty Cycle
Channel Minimum Duty Cycle
D MAX , D MAX2
D MIN , D MIN2
88
0
%
%
Current Limit Comparator
Input Common Mode Range
0
AVCC-
V
Cycle by cycle Peak Currentr Limit
Valley Current Overload Shutdown
Threshold
Positive Current sense
Input Bias Current
Negative Current sense
Input Bias Current
V ILIM + , V ILIM2+
V ILIM - , V ILIM2-
I CS + , I CS2+
I CS - , I CS2-
V CS - = V CS2- = 0.5V, Sourcing
V CS - = V CS2- = 0.5V, Sinking
V CS + = V CS - = 0
V CS2+ = V CS2- = 0
V CS + = V CS - = 0
V CS2+ = V CS2- = 0
60
-85
75
- 0
-0.7
-0.7
90
- 30
-2
-2
mV
mV
μA
μA
4
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相关代理商/技术参数 |
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| SC2446 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Dual-Phase Single or Two Output Synchronous Step-Down Controllers |
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| SC2446AEVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Dual-Phase, Single or Dual Output Synchronous Step-Down Controller |
| SC2446AITSTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Dual-Phase, Single or Dual Output Synchronous Step-Down Controller |
| SC2446EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Dual-Phase Single or Two Output Synchronous Step-Down Controllers |
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