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參數(shù)資料
| 型號(hào)： | TPS51113DRCR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件頁數(shù)： | 11/26頁 |
| 文件大小： | 2137K |
| 代理商： | TPS51113DRCR |
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UDG-08110
+
COMP
C1
22 nF
R2
2.7 kW
C2
3.9 nF
R
BIAS
2 kW
C3
8.2 nF
R3
130 W
R1
V
REF
V
OUT
FB
( )
(
)
(
)
(
)
(
)
(
)
2
1
3
2
1
2
1
2
3
1
2
sR C
1
s R
R
C
1
G s
R C C
sR
C
s
1
sR C
1
C
+
+
=
+
+
+
÷
÷
÷
+
è
è
Z1
2
1
f
2.7 kHz
2
R
C
=
p
(
)
Z2
1
3
1
f
9.2kHz
2
R
C
=
p
+
(
)
(
)
P1
1
2
1
2
1
f
17.8 kHz
C
2
R
C
=
p
÷
÷
+
è
P2
3
1
f
149.4 kHz
2
R
C
=
p
(
)
C
1
2
1
f
3.1kHz
2
R
C
=
p
+
1
BIAS
O
0.8
R
2k
V
0.8
=
W
-
www.ti.com ....................................................................................................................................................................................................... SLUS864 – MAY 2009
Figure 10 shows the detailed parameters used for the Type III compensation. Also, poles and zeros for the Type
III network are derived based on Equation 22 through Equation 26.
Figure 10. Parameters for Type III Compensation Network
(37)
(38)
(39)
(40)
(41)
(42)
fP1 is used to cancel the ESR zero. fP2 is placed at higher frequency to attenuate the high-frequency noise and
the switching ripple. fZ1 is lower than resonant frequency f0.
(43)
Based on Equation 43 and the power stage parameters, the bode-plot by simulation is shown in Figure 10
(VIN=12 V and IOUT=0 A). The achieved cross-over frequency is approximately 35.7 kHz, and the phase margin is
approximately 60°.
Copyright 2009, Texas Instruments Incorporated
19
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| TPS51113DRCT | 功能描述:DC/DC 開關(guān)控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS51113DRCT | 制造商:Texas Instruments 功能描述:; Controller Type:Synchronous Buck; Inpu |
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| TPS51116 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:COMPLETE DDR AND DDR2 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE |
| TPS51116_12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE |
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