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參數(shù)資料
| 型號(hào)： | RT9230 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1.5V ADVANCED DUAL PWM AND DUAL LINEAR POWER CONTROLLER |
| 中文描述： | 1.5V的高級(jí)雙PWM和雙重線性電源控制器 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 213K |
| 代理商： | RT9230 |
RT9230
DS9230-03 July 2001
www.richtek-ic.com.tw
1
1.5V Advanced Dual PWM and Dual Linear Power Controller
General Description
The RT9230 is a 4-in-one power controller optimized
for high-performance microprocessor and computer
applications. The IC integrates two PWM controller,
two linear controllers as well as monitoring and
protection functions into a 28-pin SOP package. The
first PWM controller regulates the microprocessor
core voltage with a synchronous buck converter,
while the second PWM controller supplies the
computer system’s AGP 1.5V or 3.3V bus power with
a standard buck converter. The first linear regulator
provides power for the 1.5V GTL bus and the second
linear regulator provides 1.8V power for the
North/South Bridge core voltage and/or cache
memory circuits.
The RT9230 features an Intel-compatible, TTL 5-bit
programmable DAC that adjusts the core voltage
from 2.1V to 3.5V in 0.1V increments and from 1.3V
to 2.05V in 0.05V steps. The 5-bit DAC has a typical
±
1% tolerance. The second PWM controller is user-
selectable for output level of 1.5V and 3.3V with
±
2.5% accuracy. The linear controllers drives
external N-MOSFET or NPN bipolar for the pass
transistor to provide fixed output voltages of 1.5V
±
3% and 1.8V
±
3%.
The RT9230 monitors all the output voltages. A
Power -good signal is issued when the core voltage
is within
±
10% of the DAC setting and the other
levels
are
above
their
Additional build-in over-voltage protection for the
core output uses the lower MOSFET to prevent
output voltage above 115% of the DAC setting. The
PWM over-current function monitors the output
current using the voltage drop across the MOSFET’s
R
DS(ON)
, which eliminates the need for a current
sensing resistor.
under-voltage
levels.
Ordering Information
RT9230
Package type
S : SOP-28
Features
z
4-in-one Regulated Voltages for Microprocessor
Core, AGP Bus, North/South Bridge and/or
Cache Memory, GTL Bus Power
z
Compatible with HIP6020
z
Power-good Output Voltage Monitor
Switching section
z
5-bit DAC Programmable from 1.3V to 3.5V
z
±
1% DAC Accuracy
z
Fast Transient Response
z
Full 0% to 100% Duty Cycle Driver
z
Fixed 200kHz Switching Frequency
z
Adaptive Non-overlapping Gate Driver
z
Over-current Monitor Uses MOSFET R
DS(ON)
z
Over-voltage Protection Uses Lower MOSFET
Linear Section
z
Fixed Linear Regulator Output Voltage
z
MOSFET or NPN Driving Capability
z
Ultra Fast Response Speed
z
Under-voltage Protection
z
Internal Thermal Shutdown
Applications
z
Full Motherboard Power Regulation for Computer
z
Low-voltage Distributed Power Supplies
Pin Configurations
Part Number
Pin Configurations
RT9230CS
(Plastic SOP-28)
TOP VIEW
Operating temperature range
C: Commercial standard
1
2
3
4
5
6
7
8
9
10
11
12
17
18
19
20
21
22
23
24
25
26
27
28
13
14
16
15
PHASE2
VID4
VID3
VID2
VID1
VID0
PGOOD
OCSET2
VSEN2
SELECT
UGATE2
SS
FAULT
VSEN4
LGATE1
PGND
OCSET1
VSEN1
FB1
NC
VCC
UGATE1
PHASE1
VSEN3
DRIVE3
GND
VAUX
DRIVE4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT9230CS | 1.5V ADVANCED DUAL PWM AND DUAL LINEAR POWER CONTROLLER |
| RT9231 | Advaned PWM and Triple Linear Power Controller |
| RT9231-CS | Advaned PWM and Triple Linear Power Controller |
| RT9231-MS | Advaned PWM and Triple Linear Power Controller |
| RT9261A-15CB | VFM Step-up DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT9230CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1.5V ADVANCED DUAL PWM AND DUAL LINEAR POWER CONTROLLER |
| RT9231 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Advaned PWM and Triple Linear Power Controller |
| RT9231A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| RT9231-CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Advaned PWM and Triple Linear Power Controller |
| RT9231-MS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Advaned PWM and Triple Linear Power Controller |
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