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参数资料
| 型号： | NCP3101BUCK2GEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 21/26页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP3101BUCK2G |
| 设计资源： | NCP3101BUCK2 EVB BOM NCP3101BUCK2GEVB Gerber Files |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.5V |
| 电流 - 输出： | 6A |
| 输入电压： | 5V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP3101 |
| 其它名称： | NCP3101BUCK2GEVBOS |
NCP3101C
120 A +
I CLR _RMS +
1
I CR_PK +
I ICinrush_PK +
12
0.1
V IN
CIN ESR
(eq. 51)
191 mA + *
1 V OUT
*
3 R OUT
3.3 V
3 10 W
V OUT
R OUT
3.3 V
330 mA +
10 W
(eq. 54)
I ICin_RMS +
V IN
CINESR
*
0.316 *
5 * CIN ESR * C IN
t DELAY_TOTAL
(eq. 52)
R OUT
V OUT
I CLR_RMS
I CR_PK
= Output resistance
= Output voltage
= RMS resistor current
= Peak resistor current
5.92 A +
12 V
0.1 W
* 0.316 *
5 * 0.1 W * 330 m F
6.76 ms
3.3V
C IN = Input capacitor
CIN ESR = Input capacitor ESR
t DELAY_TOTAL = Total delay interval
V CC = Input voltage
Once the t DELAY_TOTAL has expired, the buck converter
starts to switch and a second inrush current can be
calculated:
Output
Voltage
Output
I OCinrush_RMS +
C OUT ) C LOAD * V OUT
t SS
(eq. 53)
Current
*
) I CL * D
Load
I CLKI + * I OUT
V OUT
D
3
C OUT = Total converter output capacitance
C LOAD = Total load capacitance
D = Duty ratio of the load
I CL = Applied load at the output
I OCinrush_RMS = RMS inrush current during start ? up
t SS = Soft start interval
V OUT = Output voltage
From the above equation , it is clear that the inrush current
is dependant on the type of load that is connected to the
output. Two types of load are considered in Figure 33: a
resistive load and a stepped current load.
Inrush
Current
tss
Figure 34. Resistive Load Current
Alternatively, if the output has an under voltage lockout,
turns on at a defined voltage level, and draws a consistent
current, then the RMS connected load current is:
V OUT * V OUT_TO
(eq. 55)
3.3 V * 1.0 V
835 mA + *1A
3.3 V
I OUT = Output current
V OUT = Output voltage
V OUT_TO = Output voltage load turn on
OR
Figure 33. Load Connected to the Output Stage
If the load is resistive in nature, the output current will
increase with soft start linearly which can be quantified in
Equation 54.
http://onsemi.com
21
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相关代理商/技术参数 |
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|---|---|
| NCP3101CMNTXG | 功能描述:直流/直流开关调节器 INTEGRATED SWITCHER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| NCP3101MNTXG | 功能描述:直流/直流开关调节器 6A SYNC BUCK CNVERTR RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| NCP3102BMNTXG | 功能描述:直流/直流开关调节器 10A SYNC BUCK CNVRTR RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| NCP3102BUCK1GEVB | 功能描述:电源管理IC开发工具 NCP3102 DEMO BD 100X110M RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| NCP3102BUCK2GEVB | 功能描述:电源管理IC开发工具 NCP3102 DEMO BD 55X25MM RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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