參數(shù)資料
型號(hào): L6730
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封裝: HTSSOP-20
文件頁(yè)數(shù): 30/52頁(yè)
文件大小: 1569K
代理商: L6730
Application details
L6730 - L6730B
36/52
Doc ID 11938 Rev 3
0 dB axis with -20 dB/decade slope and a phase margin greater than 45°. To locate poles
and zeroes of the compensation networks, the following suggestions may be used:
Modulator singularity frequencies:
Compensation network singularity frequencies:
Compensation network design:
Put the gain R5/R3 in order to obtain the desired converter bandwidth
–Place
ωZ1 before the output filter resonance ωLC;
–Place
ωZ2 at the output filter resonance ωLC;
–Place
ωP1 at the output capacitor ESR zero ωESR;
–Place
ωP2 at one half of the switching frequency;
Check the loop gain considering the error amplifier open loop gain.
Figure 30.
Asymptotic bode plot of converter's open loop gain
Cout
L
LC
=
1
ω
(13)
Cout
ESR
=
1
ω
(14)
+
=
19
18
19
18
5
1
C
R
P
ω
(15)
20
4
2
1
C
R
P
=
ω
(16)
19
5
1
C
R
Z
=
ω
(17)
()
4
3
20
2
1
R
C
Z
+
=
ω
(18)
LC
C
Vosc
Vin
R
Δ
=
3
5
(18)
相關(guān)PDF資料
PDF描述
L6730B 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6730TR 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6732CTR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732 SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732TR SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730_09 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730B 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
L6730BTR 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
L6730C 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁(yè)面:1316 (CN2011-ZH PDF)
L6730CQ 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification