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參數(shù)資料
| 型號： | ADP3153 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 5-Bit Programmable Dual Power Supply Controller for Pentium II Processor |
| 中文描述： | 5位可編程雙電源控制器的奔騰II處理器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 164K |
| 代理商： | ADP3153 |
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADP3153
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
5-Bit Programmable Dual
Power Supply Controller
for Pentium
II Processor
FEATURES
5-Bit Digitally Programmable 1.8 V to 3.5 V Output
Voltage
Dual N-Channel Synchronous Driver
Total Output Accuracy
6
1% (0
8
C to +70
8
C)
High Efficiency
Current-Mode Operation
Short Circuit Protection
Power Good Output
Overvoltage Protection Crowbar
On-Board Linear Regulator Controller
VRM 8.2 Compatible
Narrow Body TSSOP 20-Lead Package
APPLICATIONS
Desktop PC Power Supply for:
Pentium II Processor
Deschutes Processor
Pentium Pro Processor
Pentium Processor
AMD–K6 Processor
VRM Modules
GENERAL DESCRIPTION
The ADP3153 is a highly efficient synchronous switching regu-
lator controller and a linear regulator controller. The switching
regulator controller is optimized for Pentium II and Deschutes
Processor applications where 5 V is stepped down to a digitally
controlled output voltage between 1.8 V and 3.5 V. Using a 5-bit
DAC to read a voltage identification (VID) code directly from
the processor, the ADP3153 uses a current mode constant off-
time architecture to generate its precise output voltage.
The ADP3153 drives two N-channel MOSFETS in a synchro-
nous rectified buck converter, at a maximum switching fre-
quency of 250 kHz. Using the recommended loop compensation
and guidelines, the ADP3153 provides a dc/dc converter that
meets Intel’s stringent transient specifications with a minimum
number of output capacitors and smallest footprint. Addition-
ally, the current mode architecture also provides guaranteed
short circuit protection and adjustable current limiting.
The ADP3153’s linear regulator controller drives an external
N-channel device. The output voltage is set by the ratio of the
external feedback resistors. The controller has been designed for
excellent load transient response.
V
+12V
1
m
F
22
m
F
R1
R2
150pF
5-BIT CODE
IRL3103
V
IN
+5V
+C
IN
10BQ015
L
2.5
m
H
IRL3103
+C
O
V
1.8V–3.5V
14A
R
7m
V
1nF
C
COMP
V
CC
SD
DRIVE1
SENSE+
SENSE–
DRIVE2
PGND
VID0–VID4
AGND
C
T
CMP
ADP3153
35k
V
FB
20k
V
VLDO
V
IN
+5V
1000
m
F
V
O2
+3.3V
1A
IRL2703
Figure 1. Typical Application
Pentium is a registered trademark of Intel Corporation.
All other trademarks are the property of their respective holders.
相關PDF資料 |
PDF描述 |
|---|---|
| ADP3153ARU | 5-Bit Programmable Dual Power Supply Controller for Pentium II Processor |
| ADP3154 | 5-Bit Programmable Dual Power Supply Controller for Pentium III Processors |
| ADP3154JRU | 5-Bit Programmable Dual Power Supply Controller for Pentium III Processors |
| ADP3158 | 4-Bit Programmable Synchronous Buck Controllers |
| ADP3158JR | 4-Bit Programmable Synchronous Buck Controllers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3153ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:5-Bit Programmable Dual Power Supply Controller for Pentium II Processor |
| ADP3153ARU-REEL | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| ADP3153ARU-REEL7 | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| ADP3154 | 制造商:AD 制造商全稱:Analog Devices 功能描述:5-Bit Programmable Dual Power Supply Controller for Pentium III Processors |
| ADP3154A | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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