參數(shù)資料
型號(hào)： TPS54623RHLT
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 15 A SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14
封裝： 3.50 X 3.50 MM, GREEN, PLASTIC, QFN-14
文件頁(yè)數(shù)： 13/35頁(yè)
文件大?。?/td> 1468K
代理商： TPS54623RHLT
Vref
VOUT
R8
R4
C4
C6
R9
Coea
Roea
gmea
COMP
VSENSE
Type 2A
Type 2B
R4
C4
C11
Type 3
ea
ps
2
c
VOUT
Co
R4 =
gm
Vref
gm
p
O
L
1
p =
C
R
2
÷
è
p
L
R
Co
C4 =
R4
ESR
R
Co
C6 =
R4
(
)
1
C11
2
R8 fc
=
× ×
×
p
SLVSB09
– SEPTEMBER 2011
The design guidelines below are provided for advanced users who prefer to compensate using the general
method. The below equations only apply to designs whose ESR zero is above the bandwidth of the control loop.
This is usually true with ceramic output capacitors. See the Application Information section for a step-by-step
design procedure using higher ESR output capacitors with lower ESR zero frequencies.
Figure 30. Types of Frequency Compensation
The general design guidelines for device loop compensation are as follows:
1. Determine the crossover frequency, fc. A good starting point is 1/10th of the switching frequency, fsw.
2. R4 can be determined by:
(14)
Where:
gmea is the GM amplifier gain (1300μA/V)
gmps is the power stage gain (16A/V)
Vref is the reference voltage (0.6V)
3. Place a compensation zero at the dominant pole:
C4 can be determined by:
(15)
4. C6 is optional. It can be used to cancel the zero from the ESR (Equivalent Series Resistance) of the output
capacitor Co.
(16)
5. Type III compensation can be implemented with the addition of one capacitor, C11. This allows for slightly
higher loop bandwidths and higher phase margins. If used, C11 is calculated from Equation 17.
(17)
20
Copyright
2011, Texas Instruments Incorporated
Product Folder Link(s) :TPS54623
相關(guān)PDF資料
PDF描述
TPS54672PWPG4 12 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO28
TPS54810PWPRG4 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54810PWPG4 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54873PWPG4 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54880PWPR 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54625EVM-608 制造商:Texas Instruments 功能描述:TPS54625EVM-608 - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:TPS54625 EVAL MOD
TPS54625PWP 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC REG BUCK ADJ 6.5A 14HTSSOP 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 650KHZ HT
TPS54625PWPR 功能描述:Buck Switching Regulator IC Positive Adjustable 0.765V 1 Output 6.5A 14-TSSOP (0.173", 4.40mm Width) Exposed Pad 制造商:texas instruments 系列:D-CAP2?? 包裝:剪切帶（CT） 零件狀態(tài):有效 功能:降壓 輸出配置:正 拓?fù)?降壓 輸出類(lèi)型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:4.5V 電壓 - 輸入（最大值）:18V 電壓 - 輸出（最小值/固定）:0.765V 電壓 - 輸出（最大值）:5.5V 電流 - 輸出:6.5A 頻率 - 開(kāi)關(guān):650kHz 同步整流器:是 工作溫度:-40°C ~ 85°C（TA） 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬）裸焊盤(pán) 供應(yīng)商器件封裝:14-HTSSOP 標(biāo)準(zhǔn)包裝:1
TPS54626EVM-608 制造商:Texas Instruments 功能描述:TPS54626EVM-608 - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:TPS54626 EVAL MOD
TPS54626PWP 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 650KHZ HT 制造商:Texas Instruments 功能描述:18V 6.5A DCAP2 sync converter
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*