- 您現在的位置：買賣IC網 > PDF目錄30713 > L6920DB (STMICROELECTRONICS) 0.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 PDF資料下載
參數資料
| 型號： | L6920DB |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | LEAD FREE, MSOP-8 |
| 文件頁數： | 16/16頁 |
| 文件大小： | 402K |
| 代理商： | L6920DB |
L6920DB
Detailed description
9/16
Considering that current in the inductor is limited to 800mA, the maximum load current is
defined by the following relationship:
Equation 1
Where
ηis the efficiency and ILIM = 750mA
Figure 8.
No regulation C2 = Vout ; C3 = Inductor Current
5.2
Start-up
One of the key features of L6920DB is the startup at supply voltage down to 0.8V (please
see the diagram in Figure 4).
The device leaves the startup mode of operation as soon as Vout goes over 1.4V. During
startup, the synchronous switch is off and the energy is transferred to the load through its
intrinsic body diode.
The N-channel switches with a very low RDS(on) thanks to an internal charge pump used to
bias the power MOS gate. Because of this modified behavior, TON/TOFF times are
lengthened. Current limit and zero crossing detection are still available.
I
LOAD_LIM
V
in
V
out
-----------
I
LIM
T
OFF_MIN
V
out
V
in
–
2L
-------------------------
–
η
=
相關PDF資料 |
PDF描述 |
|---|---|
| L6920DCTR | 0.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| L78MS05JSMP | SPECIALTY ANALOG CIRCUIT, PSSO5 |
| L78MS05J | SPECIALTY ANALOG CIRCUIT, ZFM5 |
| L78MS05J | SPECIALTY ANALOG CIRCUIT, ZFM5 |
| L9610C013TR | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L6920DBTR | 功能描述:直流/直流開關轉換器 SYNCRONOUS RECT. STEP UP CONVERTER RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| L6920DC | 功能描述:直流/直流開關調節器 Sync Rectifier Step Up Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6920DCTR | 功能描述:直流/直流開關調節器 Sync Rectifier Step Up Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6920DTR | 功能描述:直流/直流開關轉換器 0.6 to 5.5V Step-Up RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| L6922-1 | 制造商:Thomas & Betts 功能描述:3/4 CORD GRIP CONNECTOR,EA |
發布緊急采購，3分鐘左右您將得到回復。