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參數(shù)資料
| 型號： | PM6641TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, LEAD FREE, VQFP-48 |
| 文件頁數(shù)： | 1/47頁 |
| 文件大小： | 2254K |
| 代理商： | PM6641TR |
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May 2009
Doc ID 13510 Rev 3
1/47
47
PM6641
Monolithic VR for chipset and DDR2/3 supply
for ultra-mobile PC (UMPC) applications
Features
■ 0.8 V ±1% internal voltage reference
■ 2.7 V to 5.5 V input voltage range
■ Fast response, constant frequency,
current mode control
■ Three independent, adjustable, out-of-phase
SMPS for DDR2/3 (VDDQ) and chipset supply
■ Low noise DDR2/3 reference (VTTREF)
■ ±2 Apk LDO for DDR2/3 termination (VTT)
with foldback
■ S0-S5 states compliant DDR2/3 section
■ Active soft-end for all outputs
■ Selectable tracking discharge for VDDQ
■ Separate Power Good signals
■ Pulse skipping at light load
■ Programmable current limit and soft-start for
all outputs
■ Latched OVP, UVP protection
■ Thermal protection
Applications
■ DDR2/3 memory and chipset supply
■ UMPC and portable equipment
■ Handheld and PDAs
Description
The PM6641 is a monolithic voltage regulator
module specifically designed to supply DDR2/3
memory and chipset in ultra-mobile PC and real
estate constrained portable systems.
It integrates three independent, adjustable,
constant frequency buck converters, a ±2 Apk low
drop-out (LDO) linear regulator and a
±15 mA low noise buffered reference.
Each regulator provides basic UV and OV
protections, programmable soft-start and current
limit and active soft-end.
Pulse-skipping technique is performed to increase
efficiency at very light load.
VFQFPN-48 7x7 mm
Table 1.
Device summary
Order codes
Package
Packaging
PM6641
VFQFPN-48 7x7 (exposed pad)
Tray
PM6641TR
Tape and reel
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PM6641 | SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, QCC48 |
| PM6670ASTR | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670AS | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670A | 1.4 A SWITCHING CONTROLLER, QCC24 |
| PM6670STR | 3 A SWITCHING CONTROLLER, QCC24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6644 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 350mA adjust SD reg 4.5V to 25V 350mA RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| PM6644TR | 功能描述:DC/DC 開關(guān)控制器 350 mA adj step-down 4.5 to 25V -40, 150c 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 |
| PM6650 | 制造商:Qualcomm 功能描述:Electronic Component |
| PM6652 | 功能描述:DC/DC 開關(guān)控制器 Single Phase CNTR Intel MVP 6.5 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 |
| PM6652TR | 功能描述:DC/DC 開關(guān)控制器 Single Phase Cntrl Intel MVP 6.5 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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