參數(shù)資料
型號: RT9205PS
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(wěn)壓器-同步降壓PWM型DC - DC和線性控制器
文件頁數(shù): 1/15頁
文件大?。?/td> 227K
代理商: RT9205PS
RT9205/A
Preliminary
1
DS9205/A-08 March 2007
www.richtek.com
Features
l
Operates at 5V
l
0.8V Internal Reference
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Drives Two N-MOSFET
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Voltage Mode PWM Control
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Fast Transient Response
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Fixed 300kHz Oscillator Frequency
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Dynamic 0 to 100% Duty Cycle
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Internal PWM Loop Compensation
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Internal Soft-Start
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Adaptive Non-Overlapping Gate Driver
l
Over-Voltage Protection Uses Lower MOSFET
l
RoHS Compliant and 100% Lead (Pb)-Free
Pin Configurations
Applications
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PC Motherboard
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Cable Modems, Set-Top-Box, and XDSL Modems
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DSP and Core Communications Processor Supplies
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Memory Power Supplies
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Personal Computer Peripherals
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Industrial Power Supplies
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5V Input DC-DC Regulators
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Low Voltage Distributed Power Supplies
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Graphic Cards
Dual Regulators - Synchronous Buck PWM DC-DC and
Linear Controller
Ordering Information
RT9205/A
General Description
The RT9205/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 14-pin package.
The RT9205/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 RT9205/A also features over voltage protection
(OVP) and under voltage lock-out (UVLO).
(TOP VIEW)
SOP-14
LGATE
PGND
GND
VCC
DRV
FBL
NC
NC
FB
NC
NC
UGATE
BOOT
NC
2
3
4
5
6
7
11
10
12
13
14
8
9
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-14
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
UVP : Hiccup Node
UVP : Latch Mode
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