参数资料
| 型号： | SC4624AMLTRT |
| 厂商： | Semtech |
| 文件页数： | 6/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 4A 20MLPQ |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 5.5 V |
| 输入电压： | 2.3 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 200kHz ~ 2MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 其它名称： | SC4624AMLDKR |
SC4624A
POWER MANAGEMENT
Operation
Typical Performance Characteristics
Circuit condition: Application circuit#1, 5V IN , 1V OUT
Start up by Vin
Test condition: 5Vin, 1Vo, Io=0A
IN
Vin
Start up by Vin
Test condition: 5Vin, 1Vo, Io=0A
Vin IN
5V/DIV
SS
5V/DIV
SS
5V/DIV
OUT
Vout
5V/DIV
OUT
Vout
Figure 1. Start Up by V IN @0A
Figure Shutdown by Vin V IN @4A
0.5V/DIV
5V/DIV
5V/DIV
5V/DIV
10ms/DIV
Shutdown by Vin
Test condition: 5Vin, 1Vo, Io=0A
PGOOD
IN
Vin
0.5V/DIV
5V/DIV
5V/DIV
5V/DIV
10ms/DIV
2. Start Up by
Test condition: 5Vin, 1Vo, Io=4A
PGOOD
Vin IN
0.5V/DIV
SS
OUT
V Vout
0.5V/DIV
SS
V OUT
PGOOD
Figure 3. Shutdown by V IN @0A
5V/DIV
50mV/DIV
5ms/DIV
Transient response
Test condition: 5Vin, 1Vo, Io=0 to 4A
R=F=2.5A/us,T1=T2=0.1ms
Vout
Io
PGOOD
OUT
Vout
5V/DIV
20mV/DIV
1ms/DIV
4. Stability and by V IN
Figure Shutdown Ripple @4A
Test condition: 5Vin, 1Vo, Io=4A,
(Operating stably)
Vout
PGOOD
Vout OUT
2A/DIV
20us/DIV
Figure 5. Transient Response@ 0 to 4A
l
IOUT
2.0V/DIV
1us/DIV
Figure 6. Ripple and Stability@4A
Vphase PHASE
? 2008 Semtech Corp.
6
www.semtech.com
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相关代理商/技术参数 |
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| SC4624EVB-MLPQ | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624EVB-SO | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624MLTRT | 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:SC4624 Series 2 MHz 4 A SMT Synchronous Step Down Regulator - MLPQ-20 |
| SC4624SETRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4626 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:2.5MHz, 1A Synchronous Step Down Regulator in SOT23-5 |
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