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參數資料
| 型號： | RT9203APS |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| 中文描述： | 雙穩壓器-同步降壓PWM型DC - DC和線性控制器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 228K |
| 代理商： | RT9203APS |
RT9203/A
Preliminary
1
DS9203/A-10 March 2007
www.richtek.com
Features
l
Operates at 5V
l
0.8V Internal Reference
l
Drives Two N-MOSFET
l
Voltage Mode PWM Control
l
Fast Transient Response
l
Fixed 300kHz Oscillator Frequency
l
Dynamic 0 to 100% Duty Cycle
l
Internal PWM Loop Compensation
l
Internal Soft-Start
l
Adaptive Non-Overlapping Gate Driver
l
Over-Voltage Protection Uses Lower MOSFET
l
RoHS Compliant and 100% Lead (Pb)-Free
Pin Configurations
Applications
l
PC Motherboard
l
Cable Modems, Set-Top-Box, and DSL Modems
l
DSP and Core Communications Processor Supplies
l
Memory Power Supplies
l
Personal Computer Peripherals
l
Industrial Power Supplies
l
5V Input DC-DC Regulators
l
Low Voltage Distributed Power Supplies
l
Graphic Cards
Dual Regulators - Synchronous Buck PWM DC-DC and
Linear Controller
Ordering Information
RT9203/A
General Description
The RT9203/A is a dual-output power controllers designed
for high performance graphics cards and personal
computers. The IC integrates a synchronous buck
controller, a linear controller and protection functions into
a small 8-pin package.
The RT9203/A uses an internal compensated voltage
mode PWM control for simplying design. An internal 0.8V
reference allows the output voltage to be precisely
regulated to meet low output voltage requirement. A fixed
300kHz oscillation frequency reduces the component size
for saving board area.
The RT9203/A also features over voltage protection
(OVP) and under voltage lock-out (UVLO).
(TOP VIEW)
SOP-8
BOOT
UGATE
GND
LGATE
VCC
DRV
FBL
FB
2
3
4
5
6
7
8
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
S : SOP-8
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
UVP : Hiccup Mode
UVP : Latch Mode
相關PDF資料 |
PDF描述 |
|---|---|
| RT9203GS | Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9203PS | Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9204AGS | Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
| RT9204APS | Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
| RT9204GS | Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| RT9203GS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9203PS | 制造商:Richtek 功能描述:DC/DC (IC) |
| RT9204 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
| RT9204_07 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
| RT9204AGS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual Regulators - Standard Buck PWM DC-DC and Linear Controller |
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