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參數(shù)資料
| 型號(hào)： | RT8100 |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| 中文描述： | 同步降壓PWM直流/雙直流電壓控制模式 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 438K |
| 代理商： | RT8100 |
RT8100
Preliminary
1
DS8100-03 August 2007
www.richtek.com
Features
z
Analogous Current Mode Design
z
2.5V to 12V Switching Source Power
z
0.8V to 3.3V Output Voltage Regulation
z
Adjustable V
IN
Feed-Forward Ramp Slope
z
Adjustable Operation Frequency
z
Precise Core Voltage Regulation
z
Precise DCR Current Sensing with High Quality
Capacitor, X7R
z
±
1.5% System Accuracy
z
Input Voltage : 12V and 5V Bias
z
Enable Function
z
RoHS Compliant and 100% Lead (Pb)-Free
z
Over Current Protection
z
External Soft Start Setting
z
Operation Frequency up to 1.0MHz
z
Dual Mode Voltage Control
`
Tracking Mode
`
Stand-Alone Mode
z
Output Current Indication
z
16-Lead VQFN Package
Applications
z
MB memory and chipset core power
z
Middle-high graphic card GPU and memory core power
z
General-purpose fields including server, NB, bare-bone
and mini-system
Synchronous buck PWM DC/DC with Dual Voltage Control Mode
General Description
The RT8100 is an advanced DC/DC synchronous buck PWM
controller with several innovative functions for specific
customer
’
s ASIC only. The part features RichTek
’
s
innovative design and topology say
“
analogous current
mode
”
for current sensing and full functions for various
applications including adjustable soft start, free-run and
adjustable operation frequency and enable; the part is with
design of 12V+12V boot strapped driver which is capable
to drive up to 20Amp output current; moreover the part is
with implementation of accuracy DCR current sensing
topology. There are several specific features implemented
and reserved for the specific customer
’
s special
applications including dual V
CORE
control mode including
tracking and stand-alone mode, and output current
indication. The part is proposed with a small footprint of
VQFN-16L 3x3 package.
Pin Configurations
Ordering Information
(TOP VIEW)
VQFN-16L 3X3
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.
Package Type
QV : VQFN-16L 3x3 (V-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
RT8100
5VSB
LGATE
12
11
10
9
13
14
15
16
1
2
3
4
8
7
6
5
RR
I_IND
RT
PI
SS
PVCC
F
C
C
C
P
1
B
U
GND
17
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| RT8100GQV | Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8100PQV | Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8800A | General Purpose 3-Phase PWM Controller for High-Density Power Supply |
| RT8800AGQV | General Purpose 3-Phase PWM Controller for High-Density Power Supply |
| RT8800APQV | General Purpose 3-Phase PWM Controller for High-Density Power Supply |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8100A | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8100AGQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8100APQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8100GQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
| RT8100PQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous buck PWM DC/DC with Dual Voltage Control Mode |
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