參數(shù)資料
型號： L6730
廠商： 意法半導體
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)： 14/52頁
文件大?。?/td> 1370K
代理商： L6730
Device description
L6730 - L6730B
14/52
5.2
Internal LDO
An internal LDO supplies the internal circuitry of the device. The input of this stage is the V
CC
pin and the output (5V) is the V
CCDR
pin (see
Figure 4.
).
5.3
Bypassing the LDO to avoid the voltage drop with low Vcc
The LDO can be by passed by providing 5V voltage directly to V
CCDR
. In this case Vcc and
V
CCDR
pins must be shorted together as shown in
Figure 5.
V
CCDR
pin must be filtered
with at
least 1
μ
F capacitor to sustain the internal LDO during the recharge of the bootstrap capacitor.
V
CCDR
also represents a voltage reference for Tmask pin, S/O/U pin (L6730) or CC/O/U pin
(L6730B) and PGOOD pin (see
Table 3: Pins connection
).
If Vcc
≈
5V the internal LDO works in dropout with an output resistance of about 1
.
The maximum LDO output current is about 100mA, and so the output voltage drop can be
100mV.
The LDO can be bypassed to avoid this.
Figure 4.
LDO block diagram.
Figure 5.
Bypassing the LDO
LDO
4.5V
÷
14V
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PDF描述
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相關代理商/技術參數(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 開關控制器 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 安裝風格: 封裝 / 箱體:CPAK
L6730BTR 功能描述:DC/DC 開關控制器 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:- 標準包裝: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)
L6730CQ 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
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