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參數資料
| 型號： | RT8805C |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Two Phase General Purpose PWM Controller |
| 中文描述： | 兩相通用PWM控制器 |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 391K |
| 代理商： | RT8805C |
RT8805C
Preliminary
1
DS8805C-03 August 2007
www.richtek.com
Features
z
12V Power Supply Voltage
z
2 Phase Power Conversion
z
Embedded 12V Boot Strapped Driver
z
Precise Core Voltage Regulation
z
Low Side MOSFET R
DS(ON)
Current Sensing for
Power Stage Current Balance
z
External Compensation
z
Adjustable Soft-Start
z
Adjustable Frequency and Typical at 300kHz Per
Phase
z
Power Good Indication
z
Adjustable Over Current Protection
z
External Reference Voltage Tracking (RT8805CxQVA)
z
Small 16-Lead and 24-Lead VQFN Packages
z
RoHS Compliant and 100% Lead (Pb)-Free
Applications
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Middle-High End GPU Core Power
z
High End Desktop PC Memory Core Power
z
Low Output Voltage, High Power Density DC-DC
Converters
z
Voltage Regulator Modules
Two Phase General Purpose PWM Controller
Ordering Information
RT8805C
General Description
The RT8805C is the most compact dual-phase
synchronous buck controller in the industry specifically
designed for high power density applications. This part is
capable of delivering up to 60A output current due to its
embedded bootstrapped drivers that support 12V + 12V
driving capability.
The phase currents are sensed by innovative time sharing
R
DS(ON)
current sensing technique for current balance and
over current balance. Using one common GM amplifier to
sense two phase currents eliminates offset and
nonlinearity of the GM amplifier and yields good current
balance. Other features include adjustable operation
frequency from 50kHz to 1MHz, adjustable soft-start,
PGOOD, external compensation, enable/shutdown for
various application and performance consideration.
The RT8805C comes to a tiny footprint package of
VQFN-16L 3x3 and VQFN-24L 4x4 packages.
Note :
Richtek Pb-free and Green products are :
`
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
`
Suitable for use in SnPb or Pb-free soldering processes.
`
100% matte tin (Sn) plating.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
Package Type
QV : VQFN-16L 3x3 (V-Type)
QVA : VQFN-24L 4x4 (V-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
相關PDF資料 |
PDF描述 |
|---|---|
| RT8805CGQV | Two Phase General Purpose PWM Controller |
| RT8805CGQVA | Two Phase General Purpose PWM Controller |
| RT8805CPQV | Two Phase General Purpose PWM Controller |
| RT8805CPQVA | Two Phase General Purpose PWM Controller |
| RT8805 | Two Phase General Purpose PWM Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| RT8805CGQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Two Phase General Purpose PWM Controller |
| RT8805CGQVA | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Two Phase General Purpose PWM Controller |
| RT8805CPQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Two Phase General Purpose PWM Controller |
| RT8805CPQVA | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Two Phase General Purpose PWM Controller |
| RT8805GQV | 功能描述:IC REG CTRLR BUCK PWM VM 16-VQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數:1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
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