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參數(shù)資料
| 型號： | RT8800PQV |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | General Purpose 2/3-Phase PWM Controller for High-Density Power Supply |
| 中文描述： | 通用2/3-Phase PWM控制器，用于高密度電源 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 546K |
| 代理商： | RT8800PQV |
RT8800/B
1
DS8800/B-06 March 2007
www.richtek.com
All brand name or trademark belong to their owner respectively
General Description
The RT8800/B are general purpose multi-phase
synchronous buck controllers dedicating for high density
power supply regulation. The parts implement 2, and 3
buck switching stages operating in interleaved phase set
automatically. The output voltage is regulated and
controlled following the input voltage of FB pin. With such
a single analog control, the RT8800/B provide a simple,
flexible, wide-range and extreme cost-effective high-
density voltage regulation solutions for various high-density
power supply application. The RT8800/B multi-phase
architecture provide high output current while maintaining
low power dissipation on power devices and low stress
on input and output capacitors. The high equivalent
operating frequency also reduces the component
dimension and the output voltage ripple in load transient.
RT8800/B implement both voltage and current loops to
achieve good regulation, response and power stage
thermal balance. The RT8800/B apply the time sharing
DCR current sensing technology newly as well; with such
a topology, the RT8800/B extract the DCR of output
inductor as sense component to deliver a more precise
load line regulation and better thermal balance capability.
Moreover, the parts monitor the output voltage for over-
current and over-voltage protection; Soft-start and
programmable under-voltage lockout are also provided to
assure the safety of power system.
Features
z
5V Power Supply Voltage
z
2/3-Phase Power Conversion with Automatic Phase
Selection (RT8800 : 2/3-Phase, RT8800B : 2-Phase)
z
Output Voltage Controlled by External Reference
Voltage
z
Precise Core Voltage Regulation
z
Power Stage Thermal Balance by DCR Current
Sensing
z
Extreme Low-Cost, Lossless Time Sharing Current
Sensing
z
Internal Soft-start
z
Hiccup Mode Over-Current Protection
z
Over-Voltage Protection
z
Adjustable Operating Frequency and Typical at
300kHz Per Phase
z
Power Good indication
z
Small 16-Lead VQFN Package (For RT8800 only)
z
RoHS Compliant and 100% Lead (Pb)-Free
Applications
z
Desktop CPU core power
z
Low Output Voltage, High power density DC-DC
Converters
z
Voltage Regulator Modules
General Purpose 2/3-Phase PWM Controller for High-Density
Power Supply
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.
Ordering Information
Note :
z
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.
Package Type
QV : VQFN-16L 3x3 (V-Type)
S : SOP-16
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
RT8800/B
2-Phase
2/3-Phase
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT8800PS | General Purpose 2/3-Phase PWM Controller for High-Density Power Supply |
| RT8803A | 2/3-Phase PWM Controller for High-Density Power Supply |
| RT8805C | Two Phase General Purpose PWM Controller |
| RT8805CGQV | Two Phase General Purpose PWM Controller |
| RT8805CGQVA | Two Phase General Purpose PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8800PS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:General Purpose 2/3-Phase PWM Controller for High-Density Power Supply |
| RT8801 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Multi-Phase PWM Controller for CPU Core Power Supply with Serial Programming Interface |
| RT8801B | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Multi-Phase PWM Controller for K8 CPU Core Power Supply with Serial Programming Interface |
| RT8801BGQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Multi-Phase PWM Controller for K8 CPU Core Power Supply with Serial Programming Interface |
| RT8801BPQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Multi-Phase PWM Controller for K8 CPU Core Power Supply with Serial Programming Interface |
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