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參數(shù)資料
| 型號(hào)： | TPS65270RGET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 1400 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封裝： | 4 X 4 MM, PLASTIC, VQFN-24 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 1432K |
| 代理商： | TPS65270RGET |
Current Sense
I/V Gain
FBx
R2
R1
Cff
RL
Co
Resr
iL
gmps=10A/V
Vref=0.8V
Rc
Cc
CRoll
Vo
gm=130A/V
SLVSAX7
– AUGUST 2011
Figure 16. Loop Compensation
A typical compensation circuit could be type II (Rc and Cc) to have a phase margin between 60 and 90 degrees,
or type III (Rc, Cc and Cff) to improve the converter transient response. CRoll adds a high frequency pole to
attenuate high-frequency noise when needed. It may also prevent noise coupling from other rails if there is
possibility of cross coupling in between rails when layout is very compact.
Copyright
2011, Texas Instruments Incorporated
13
Product Folder Link(s): TPS65270
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