參數(shù)資料
型號(hào): RT9202
廠商: Electronic Theatre Controls, Inc.
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): 1/16頁(yè)
文件大?。?/td> 149K
代理商: RT9202
RT9202
DS9202-02 August 2002
www.richtek.com
1
Single Synchronous Buck PWM DC-DC Controller
General Description
The RT9202 is a single power supply PWM DC-DC
converter controller designed to drive N-channel
MOSFET in a synchronous buck topology. The IC
integrates the control, output adjustment, monitoring
and protection functions in a small 8-pin package.
The RT9202 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 RT9202 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.
Applications
z
Motherboard Power Regulation for Computers
z
Subsystems Power Supplies
z
Cable Modems, Set Top Box, and DSL Modems
z
DSP and Core Communications processor Supplies
z
Memory Power Supplies
z
Personal Computer Peripherals
z
Industrial Power Supplies
z
5V-Input DC-DC Regulators
z
Low Voltage Distributed Power Supplies
Features
z
Operate from 5V
z
0.8V Internal Reference
z
Drive Two N-channel MOSFET
z
Voltage Mode PWM Control
z
Fast Transient Response
z
Fixed 300kHz Oscillator Frequency
z
Full 0~100% Duty Cycle
z
Internal Soft Start
z
Adaptive Non-overlapping Gate Driver
z
Over-current Monitor Uses MOSFET R
DS(ON)
z
Over-voltage
Protection
MOSFET
Uses
Low-side
Pin Configurations
Part Number
Pin Configurations
RT9202CS
(Plastic SOP-8)
TOP VIEW
Ordering Information
RT9202
Operating temperature range
C: Commercial standard
Package type
S : SOP-8
BOOT
UGATE
GND
LGATE
PHASE
OCSET
FB
VCC
1
2
3
4
8
7
6
5
相關(guān)PDF資料
PDF描述
RT9202CS SINGLE SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RT9202_07 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Single Synchronous Buck PWM DC-DC Controller
RT9202B 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Single Synchronous Buck PWM DC-DC Controller
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