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參數(shù)資料
| 型號(hào)： | RT9223CS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS PWM BUCK CONVERTER CONTROLLER |
| 中文描述： | 5位可編程同步PWM降壓轉(zhuǎn)換控制器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 139K |
| 代理商： | RT9223CS |
RT9223
DS9223-07 May 2001
www.richtek-ic.com.tw
1
5-Bit Programmable Synchronous PWM
Buck Converter Controller
General Description
The RT9223 is a high efficiency synchronous
switching regulator for modern CPU application. The
output is controlled by a 5-bit DAC programmed from
1.3V to 2.05V in 0.05V steps and from 2.1V to 3.5V
in 0.1V increments.
The switching controller drivers two N-MOSFETs at
200KHz frequency and provides an optimal solution
for size, efficiency and cost in any application
circuits. The controller also offers integrated
functions including PGOOD, output enable, over-
voltage, internal digital-count soft start, and current-
limiting protection in one chip.
Ordering Information
RT9223
Features
z
High
Driver Operating at 200KHz
Efficiency
Synchronous
N-MOSFET
z
1.3V ~ 2.05V (0.05V steps) and 2.1V ~ 3.5V
(0.1V steps) Output Voltage
z
Enable Input, PGOOD Output, OVP, and
Current-limiting Protection
z
Internal Digital-count Soft Start
Applications
z
Power Supply for Pentium Pro
TM
, PowerPC
TM
,
K6
TM
, 6x86
TM
, and Alpha
TM
Microprocessors
z
High-power 5V to 3.xV DC-DC Regulators
z
Low-voltage Distributed Power Supplies
z
Programmable Step-down Power Supplies
Pin Configurations
Part Number
Pin Configurations
RT9223CS
(Plastic SOP-20)
TOP VIEW
Operating temperature range
C: Commercial standard
Package type
S : SOP-20
1
2
3
4
5
6
7
8
9
10
GND
VCC
OVP
PGOOD
CSN
CSP
PGNDH
DH
NC
PGNDL
VID0
VID1
VID2
VID3
VID4
VSEN
SHDN
BSTH
BSTL
DL
20
19
18
17
16
15
14
13
12
11
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相關(guān)代理商/技術(shù)參數(shù) |
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| RT9224 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5-Bit Programmable Synchronous PWM Buck Converter Controller and Output Voltage Monitor |
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| RT9224CC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRM 9.0 Synchronous PWM Buck Converter Controller and Output Voltage Monitor |
| RT9224CCS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRM 9.0 Synchronous PWM Buck Converter Controller and Output Voltage Monitor |
| RT9224CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRM 9.0 Synchronous PWM Buck Converter Controller and Output Voltage Monitor |
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