- 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)： | 1/47頁 |
| 文件大?。?/td> | 2762K |
| 代理商： | PM6681ATR |
當(dāng)前第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
June 2008
Rev 3
1/47
47
PM6681A
Dual synchronous step-down controller with adjustable LDO
Features
■ 6 V to 36 V input voltage range
■ Adjustable output voltages
■ 0.9 - 3.3 V LDO adjustable delivers 100 mA
peak current
■ 5 V LDO delivers 100 mA peak current
■ 1.237 V ±1 % reference voltage available
■ No RSENSE current sensing using low side
MOSFETs' RDS(on)
■ Negative current limit
■ Soft-start internally fixed at 2 ms
■ Soft output discharge
■ Latched UVP
■ Not-latched OVP
■ Selectable pulse skipping at light loads
■ Selectable minimum frequency (33 kHz) in
pulse skip mode
■ 5 mW maximum quiescent power
■ Independent Power Good signals
■ Output voltage ripple compensation
Applications
■ Embedded computer system
■ FPGA system power
■ Industrial applications on 24 V
■ High performance and high density DC-DC
modules
■ Notebook computer
Description
PM6681A is a dual step-down controller
specifically designed to provide extremely high
efficiency conversion, with lossless current
sensing technique. The constant on-time
architecture assures fast load transient response
and the embedded voltage feed-forward provides
nearly constant switching frequency operation. An
embedded integrator control loop compensates
the DC voltage error due to the output ripple.
Pulse skipping technique increases efficiency at
very light load. Moreover a minimum switching
frequency of 33 kHz is selectable to avoid audio
noise issues. The PM6681A provides a selectable
switching frequency, allowing three different
values of switching frequencies for the two
switching sections. The output voltages OUT1
and OUT2 can be adjusted from 0.9 V to 5 V and
from 0.9 V to 3.3 V respectively. The device
provides also 2 LDOs, 5 V fixed and 0.9 V - 3.3 V
adjustable.
VFQFPN-32 (5 mm x 5 mm)
Table 1.
Order codes
Package
Packaging
PM6681A
VFQFPN-32 (5 mm x 5 mm)
exposed pad
Tray
PM6681ATR
Tape and reel
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(fēng)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(fēng)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(fēng)格: 封裝 / 箱體:CPAK |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。