RT9644中文資料RichTek數(shù)據(jù)手冊PDF規(guī)格書
RT9644規(guī)格書詳情
General Description
The RT9644/A is a complete ACPI compliant power solution for DDR and DDR2 memory system with up to 4 DIMMs dual channel systems. This RT9644 includes one synchronous buck controller for DDR/DDR2 VDDQ, one DDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, three LDO controllers for VGMCH (cascode), and GMCH/CPU termination VTT_GMCH/CPU. The RT9644A includes one synchronous buck controller for DDR/DDR2 VDDQ, one PWM controller for VGMCH (with external MOSFET driver), oneDDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, and two LDO controllers for VTT_GMCH/CPU and VDAC.
Features
● RT9644 Includes Three LDO Controllers, One LDO Regulator and One PWM Controller
}OneDDR/DDR2 VDDQ with Synchronous Buck PWM
}One DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
}Two Cascode LDO Controllers forGMCH Core
}One LDO Controller forGMCH/CPU Bus Terminator VTT_GMCH/CPU
● RT9644AIncludes Two LDO Controllers, One LDO Regulator and Two PWM Controllers
}OneDDR/DDR2 VDDQ with Synchronous Buck PWM
}One VGMCH with External Richtek MOSFET Driver
}One DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
}One LDO Controller for VDAC
}One LDO Controller for GMCH/CPU Bus
Terminator VTT_GMCH/CPU
● Operating with 5V and 12V Supply Voltage
● ACPI Compliant Sleep Mode Control
● DriveAll Low Cost N-MOSFETs
● Voltage Mode PWM Control
}250kHz Fixed Frequency Oscillator (RT9644A: Two PWM controllers with phase shift 90o)
}Simple Voltage Mode Loop Control
}Fast Transient Response
}Over Current Protection
● Fully Adjustable Output Voltage Down to Compatible with DDR2
● Integrated DDR/DDR2 Reference Buffer
● Integrated VIDPGD to Indicated VTT_GMCH/CPU Operational
● All Regulator Outputs Monitored by Under Voltage Protection
● DDR/DDR2 VDDQ and Bus Terminator VTT Also Integrated Over Voltage Protection
● Integrated Thermal Shut Down
● RoHS Compliant and 100 Lead (Pb)-Free
Applications
● Motherboard, Desktop Servers : Single/Dual channel DDR/DDR2ACPI compliant
● Graphic Card : GPU and memory supply
● IA Equipments
● Telecomm Equipments
● DSP, ASIC or embedded processor and IO supplies
● High Power DC-DC Regulators
產(chǎn)品屬性
- 型號:
RT9644
- 制造商:
RICHTEK
- 制造商全稱:
Richtek Technology Corporation
- 功能描述:
ACPI Regulator/Controller for Dual Channel DDR Memory Systems
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
RICHTEK |
2020+ |
QFN |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
RHTEK/立锜 |
23+ |
NA/ |
1440 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
RICHTEK |
2023+ |
QFN |
80000 |
一級代理/分銷渠道價格優(yōu)勢 十年芯程一路只做原裝正品 |
詢價 | ||
RICHTEK |
23+ |
QFN |
20000 |
原廠原裝正品現(xiàn)貨 |
詢價 | ||
RICHTEK |
2022+ |
QFN |
20000 |
只做原裝進口現(xiàn)貨.假一罰十 |
詢價 | ||
RICHTEK/立锜 |
1948+ |
QFN |
6852 |
只做原裝正品現(xiàn)貨!或訂貨假一賠十! |
詢價 | ||
RICHTEK/立锜 |
23+ |
QFN-24 |
6800 |
只做原裝正品假一賠十為客戶做到零風險!! |
詢價 | ||
RICHTEK/立锜 |
21+ |
QFN-24 |
8000 |
詢價 | |||
RICHTEK/立锜 |
589220 |
16余年資質(zhì) 絕對原盒原盤 更多數(shù)量 |
詢價 | ||||
Richtek(立崎) |
23+ |
NA |
26094 |
10年以上分銷經(jīng)驗原裝進口正品,做服務型企業(yè) |
詢價 |