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參數(shù)資料
| 型號(hào)： | RT9202B |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Single Synchronous Buck PWM DC-DC Controller |
| 中文描述： | 單同步降壓PWM DC - DC控制器 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 209K |
| 代理商： | RT9202B |
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RT9202B
1
DS9202B-03 March 2007
www.richtek.com
Features
l
Operate From 5V
l
0.8V Internal Reference
l
Drive Two N-MOSFETs
l
Voltage Mode PWM Control
l
Fast Transient Response
l
Fixed 300kHz Oscillator Frequency
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Full 0 to 100% Duty Cycle
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Internal Soft Start
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Adaptive Non-Overlapping Gate Driver
l
Over-Current Monitor Uses MOSFET R
DS(ON)
l
Over-Voltage Protection Uses Low-Side MOSFET
l
RoHS Compliant and 100% Lead (Pb)-Free
Pin Configurations
Applications
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Motherboard Power Regulation for Computers
l
Subsystems Power Supplies
l
Cable Modems, Set Top Box, and DSL Modems
l
DSP and Core Communications processor Supplies
l
Memory Power Supplies
l
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
Single Synchronous Buck PWM DC-DC Controller
Ordering Information
RT9202B
General Description
The RT9202B is a single power supply PWM DC-DC
converter controller designed to drive N-MOSFET in a
synchronous buck topology. The IC integrates the control,
output adjustment, monitoring and protection functions in
a small 8-pin package.
The RT9202B uses a low gain voltage mode PWM control
for simple application design. An internal 0.8V reference
allows the output voltage to be precisely regulated to
low voltage requirement. A fixed 300kHz oscillator
reduces the component size for saving board space.
The RT9202B features over current protection, over voltage
protection, and under voltage lock-out. The output current
is monitored by sensing the voltage drop across the
MOSFET's R
DS(ON)
, which eliminates the need for a current
sensing resistor.
(TOP VIEW)
SOP-8
BOOT
UGATE
GND
LGATE
VCC
FB
OCSET
PHASE
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)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT9202BGS | Single Synchronous Buck PWM DC-DC Controller |
| RT9202BPS | Single Synchronous Buck PWM DC-DC Controller |
| RT9202GS | Single Synchronous Buck PWM DC-DC Controller |
| RT9202PS | Single Synchronous Buck PWM DC-DC Controller |
| RT9203AGS | Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT9202BGS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Single Synchronous Buck PWM DC-DC Controller |
| RT9202BPS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Single Synchronous Buck PWM DC-DC Controller |
| RT9202CS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:SINGLE SYNCHRONOUS BUCK PWM DC-DC CONTROLLER |
| RT9202GS | 制造商:Richtek Technology Corporation 功能描述: |
| RT9202PS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Single Synchronous Buck PWM DC-DC Controller |
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