- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69061 > PM6681ATR (STMICROELECTRONICS) 0.4 A DUAL SWITCHING CONTROLLER, QCC32 PDF資料下載
參數(shù)資料
| 型號： | PM6681ATR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.4 A DUAL SWITCHING CONTROLLER, QCC32 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32 |
| 文件頁數(shù)： | 28/47頁 |
| 文件大?。?/td> | 2762K |
| 代理商： | PM6681ATR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁當前第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁
Design guidelines
PM6681A
34/47
Dual N-channel MOSFETs can be used in applications with a maximum output current of
about 3 A. Below there is a list of some MOSFET manufacturers.
A rectifier across the low side MOSFET is recommended. The rectifier works as a voltage
clamp across the synchronous rectifier and reduces the negative inductor swing during the
dead time between turning the high-side MOSFET off and the synchronous rectifier on. It
can increase the efficiency of the switching section, since it reduces the low side switch
losses. A Schottky diode is suitable for its low forward voltage drop (0.3 V). The diode
reverse voltage must be greater than the maximum input voltage VINmax. A minimum
recovery reverse charge is preferable. Below there is a list of some Schottky diode
manufacturers.
9.6
Closing the integrator loop
The design of external feedback network depends on the output voltage ripple. If the ripple
is higher than approximately 30 mV, the feedback network (Figure 39) is usually enough to
keep the loop stable.
Table 15.
Low side MOSFET manufacturer
Manufacturer
Type
RDS(on) (m)
Rated reverse voltage (V)
ST
STS17NF3LL
5.5
0.047
30
ST
STS25NH3LL
3.5
0.011
30
Table 16.
Dual MOSFET manufacturer
Manufacturer
Type
RDS(on) (m) Gate charge (nC) Rated reverse voltage (V)
ST
STS8DNH3LL
25
10
30
ST
STS4DNF60L
65
32
60
Table 17.
Schottky diode manufacturer
Manufacturer
Series
Forward voltage
(V)
Rated reverse voltage
(V)
Reverse current
(uA)
ST
STPS1L30M
0.34
30
0.00039
ST
STPS1L20M
0.37
20
0.000075
GS
RSS
C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PMA4118HSF/C | 1-OUTPUT 18 W DC-DC REG PWR SUPPLY MODULE |
| PMA4118LSF/B | 1-OUTPUT 14.4 W DC-DC REG PWR SUPPLY MODULE |
| PMA4218GSF/B | 1-OUTPUT 21.6 W DC-DC REG PWR SUPPLY MODULE |
| PMA4118LSF/C | 1-OUTPUT 14.4 W DC-DC REG PWR SUPPLY MODULE |
| PMA4118HSF/B | 1-OUTPUT 18 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6685 | 功能描述:DC/DC 開關(guān)控制器 Dual 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 安裝風格: 封裝 / 箱體:CPAK |
| PM6685_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual step-down main supply controller with auxilary voltages for notebook system power |
| PM6685TR | 功能描述:DC/DC 開關(guān)控制器 Monolithic VR 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 安裝風格: 封裝 / 箱體:CPAK |
| PM6686 | 制造商:STMicroelectronics 功能描述: |
| PM6686TR | 功能描述:DC/DC 開關(guān)控制器 Step-down Controller w/adj. voltages-dual 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 安裝風格: 封裝 / 箱體:CPAK |
發(fā)布緊急采購，3分鐘左右您將得到回復。