参数资料
| 型号： | SIC413CB-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 8SOIC |
| 标准包装： | 1 |
| 系列： | microBUCK® |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 13.2 V |
| 输入电压： | 4.75 V ~ 26 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -25°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-SOIC |
| 其它名称： | SIC413CB-T1-E3DKR |
SiC413
Vishay Siliconix
The amplifier compensation block is where the designer
works hard to compensate the loop to achieve an
unconditionally stable closed loop system. This block
generally has two poles (denoted P5 and P6) and one zero
(denoted Z3) as shown in the equation. The locations of
these poles and zero are
f P5 = 0
To make the zero f Z3 and pole f P6 work for increasing phase
margin the zero should be placed at a frequency lower than
and the pole much higher than the LC double pole frequency.
In general, as soon as the output LC filter is determined, the
dominant double pole is fixed. Then the compensation
design will be a "try and use" process based on above
theory. Usually a network analyzer is used to confirm the
loop stability. To make a control system stable the solution is
infinite, meaning there are lots of combinations of C1, C2,
f P6 =
1
2 π ? R5 ?
C2 ? C3
C2 + C3
C3, R1, R4 and R5 that can make the system stable. But a
designer's job is to find the optimized one that both makes
the system stable and has the best transient response.
V O
f Z3 =
1
2 π ? R5 ? C2
High-side
MOSFET Dri v er
V I N
Q1
C1
R1
R3
-
Transcond u ctance
Amplifier
Comparator
L1
R2
+
R4
C2
C3
+
-
Lo w -side
MOSFET Dri v er
Q2
C5
V O
V REF = 0.6 V
R5
Sa w tooth
2.0 V
C4
R6
1.0 V
Figure 4. Control and Compensation Network
www.vishay.com
12
Document Number: 69057
S09-2250-Rev. D, 26-Oct-09
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相关代理商/技术参数 |
参数描述 |
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| SIC413DB | 功能描述:电源管理IC开发工具 SIC413 Demo Board 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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