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| 型號： | TPS54318RTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, PLASTIC, QFN-16 |
| 文件頁數(shù)： | 9/36頁 |
| 文件大?。?/td> | 1388K |
| 代理商： | TPS54318RTET |
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VO
RL
VC
fp
fz
Adc
gmps
RESR
COUT
s
1+
2 ×
z
vo
= Adc
vc
s
1+
2 ×
p
÷
p
è
÷
p
è
ps
L
Adc = gm
R
p
OUT
L
1
p =
C
R
2
p
OUT
ESR
1
z =
C
R
2
Vref
VO
R1
R3
C1
C 2
R 2
CO
5pF
RO
gmea
COMP
VSENSE
Type 2A
Type 2B
R 3
C1
www.ti.com ......................................................................................................................................................................................... SLVS975 – SEPTEMBER 2009
Figure 31. Simple Small Signal Model and Frequency Response for Peak Current Mode Control
(7)
(8)
(9)
(10)
SMALL SIGNAL MODEL FOR FREQUENCY COMPENSATION
The TPS54318 uses a transconductance amplifier for the error amplifier and readily supports two of the
commonly used frequency compensation circuits. The compensation circuits are shown in Figure 32. The Type 2
circuits are most likely implemented in high bandwidth power supply designs using low ESR output capacitors. In
Type 2A, one additional high frequency pole is added to attenuate high frequency noise.
Figure 32. Types of Frequency Compensation
Copyright 2009, Texas Instruments Incorporated
17
Product Folder Link(s) :TPS54318
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54318RTET | 制造商:Texas Instruments 功能描述:Voltage Regulator IC 制造商:Texas Instruments 功能描述:IC, SYNC STEP-DOWN SWITCHER, QFN-16 |
| TPS54319 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFTa?￠) |
| TPS54319_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFTa?￠) |
| TPS54319EVM-626 | 功能描述:電源管理IC開發(fā)工具 Evaluation Module for TPS54319 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS54319RTE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFT?) |
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