參數(shù)資料
型號： L6730CQ
廠商： 意法半導(dǎo)體
英文描述： Adjustable step-down controller with synchronous rectification
中文描述： 可調(diào)式降壓同步整流控制器
文件頁數(shù)： 17/50頁
文件大?。?/td> 1394K
代理商： L6730CQ
L6730C - L6730D
Device description
17/50
The reference of the error amplifier is clamped with this voltage (Vss) until it reaches the
programmed value: 0.6V or 1.2V. During the soft-start phase the converter works in closed
loop. The L6730C can only source current during the soft-start phase in order to manage the
prebias start-up applications. The L6730D can always sink current and so it can be used to
supply the DDR Memory termination BUS. If an over current is detected during the soft-start
phase, the device provides a constant-current-protection. In this way, in case of short soft-start
time and/or small inductor value and/or high output capacitors value and thus, in case of high
ripple current during the soft-start, the converter can start-up in any case, limiting the current
(see section 4.5 Monitoring and protections) but not entering in HICCUP mode. The soft-start
phase ends when Vss reaches 3.5V. After that the over-current-protection triggers the HICCUP
mode (L6730C). With the L6730D there is the possibility to set the HICCUP mode or the
constant current mode after the soft-start acting on the multifunction pin CC/O/U. With the
L6730 the low-side MOSFET(s) management after soft-start phase depends on the S/O/U pin
state (see related section). If the sink-mode is enabled the converter can sink current after soft-
start (see figure 9) while, if the sink-mode is disabled the converter never sinks current (see
figure 10)..
Figure 8.
Sink-mode enabled: Inductor current during and after soft-start (L6730C).
V
OUT
I
L
V
SS
V
CC
相關(guān)PDF資料
PDF描述
L6730C Adjustable step-down controller with synchronous rectification
L6730CQTR Adjustable step-down controller with synchronous rectification
L6730CTR Adjustable step-down controller with synchronous rectification
L6730D Adjustable step-down controller with synchronous rectification
L6730DTR Adjustable step-down controller with synchronous rectification
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730CQTR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730CTR 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 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 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)品目錄頁面:1316 (CN2011-ZH PDF)
L6730D 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 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 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)品目錄頁面:1316 (CN2011-ZH PDF)
L6730DTR 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 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 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)品目錄頁面:1316 (CN2011-ZH PDF)
L6730TR 功能描述:DC/DC 開關(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
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