- 您现在的位置：买卖IC网 > PDF目录15504 > MIC2168YMM (Micrel Inc)IC REG CTRLR BUCK PWM VM 10-MSOP PDF资料下载
参数资料
| 型号： | MIC2168YMM |
| 厂商： | Micrel Inc |
| 文件页数： | 12/14页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 10-MSOP |
| 标准包装： | 100 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.1MHz |
| 占空比： | 90% |
| 电源电压： | 3 V ~ 14.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 1092 (CN2011-ZH PDF) |
| 其它名称： | 576-1708-5 MIC2168YMM-ND |
MIC2168
Micrel, Inc.
60
60
40
20
100
71.607
50
0
1 .10
1 .10
1 .10
1 .10
1 .10
50
1.10
1 .10
1 .10
1 .10
.001
3
1000
4
f
5
6
7
10000000
42.933
100
100
3
f
4
5
6
1000000
Figure 7. Error Ampli?er Gain Curve
200
215.856
250
269.097
Figure 9. Open-Loop Gain Margin
220
300
240
1.10
1 .10
1 .10
1 .10
1.10
1 .10
1 .10
1 .10
10
100
260
270
10
10
100
3
f
4
5
6
1000000
350
360
3 4 5 6
10 f 1000000
Figure 10. Open-Loop Phase Margin
Figure 8. Error Ampli?er Phase Curve
Total Open-Loop Response
The open-loop response for the MIC2168 controller is easily
obtained by adding the power path and the error ampli?er
gains together, since they already are in Log scale. It is
desirable to have the gain curve intersect zero dB at tens of
kilohertz, this is commonly called crossover frequency; the
phase margin at crossover frequency should be at least 45°.
Phase margins of 30° or less cause the power supply to have
substantial ringing when subjected to transients, and have
little tolerance for component or environmental variations.
Figures 9 and 10 show the open-loop gain and phase margin.
It can be seen from Figure 9 that the gain curve intersects
the 0dB at approximately 50kHz, and from Figure 10 that at
50kHz, the phase shows approximately 50° of margin.
M9999-040805
12
April 2005
相关PDF资料 |
PDF描述 |
|---|---|
| MIC2169YMM | IC REG CTRLR BUCK PWM VM 10-MSOP |
| SP6136ER1-L | IC REG CTRLR BUCK PWM VM 16-QFN |
| LTC3822EDD#PBF | IC REG CTRLR BUCK PWM CM 10-DFN |
| SP6133ER1-L | IC REG CTRLR BUCK PWM VM 16-QFN |
| MIC3809YMM | IC REG CTRLR ISO PWM CM 8-MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2168YMM TR | 功能描述:直流/直流开关调节器 Replaced by MIC2168AYMM TR (Lead Free) 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 |
| MIC2169 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:500kHz PWM Synchronous Buck Control IC |
| MIC2169_09 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:500kHz PWM Synchronous Buck Control IC |
| MIC2169A | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:500kHz PWM Synchronous Buck Control IC |
| MIC2169A_09 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:500kHz PWM Synchronous Buck Control IC |
发布紧急采购，3分钟左右您将得到回复。