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參數(shù)資料
| 型號： | ADP3189 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller |
| 中文描述： | 8位可編程2 - 5相同步降壓控制器 |
| 文件頁數(shù)： | 1/36頁 |
| 文件大?。?/td> | 1481K |
| 代理商： | ADP3189 |
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8-Bit Programmable 2- to 5-Phase
Synchronous Buck Controller
ADP3189
FEATURES
Selectable 2-, 3-, 4-, or 5-phase operation at up
to 1 MHz per phase
±7.7 mV worst-case differential sensing error over
temperature
Logic-level PWM outputs for interface to external
high-power drivers
Active current balancing between all output phases
Built-in power good/crowbar blanking supports on-the-fly
VID code changes
Digitally programmable 0.5 V to 1.6 V output— supports
both VR10.x and VR11 specifications
Programmable short-circuit protection with programmable
latch-off delay
APPLICATIONS
Desktop PC power supplies for
Next generation Intel processors
VRM modules
The ADP31891
is a highly efficient multi-phase synchronous
buck switching regulator controller optimized for converting a
12 V main supply into the core supply voltage required by high
performance Intel processors. It uses an internal 8-bit DAC to
read a voltage identification (VID) code directly from the
processor, which is used to set the output voltage between 0.5 V
and 1.6 V.
This device uses a multi-mode PWM architecture to drive the
logic-level outputs at a programmable switching frequency that
can be optimized for VR size and efficiency. The phase relation-
ship of the output signals can be programmed to provide 2-, 3-,
4-, or 5-phase operation, allowing for the construction of up to
five complementary buck switching stages.
The ADP3189 also includes programmable no-load offset and
slope functions to adjust the output voltage as a function of the
load current, so it is optimally positioned for a system transient.
The ADP3189 also provides accurate and reliable short-circuit
protection, adjustable current limiting, and a delayed power
good output that accommodates on-the-fly output voltage
changes requested by the CPU.
ADP3189 is specified over the extended commercial tem-
perature range of 0°C to +85°C and is available in a
40-lead LFCSP package.
1
Protected by U.S. Patent Number 6,683,441; others pending.
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
www.analog.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADP31890001CPZR | 制造商:Analog Devices 功能描述: |
| ADP3189JCPZ-R7 | 功能描述:IC CTRLR BUCK 8BIT PROGR 40LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| ADP3189JCPZ-RL | 功能描述:IC CTRLR BUCK 8BIT PROGR 40LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| ADP3189JCPZ-RLZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller |
| ADP3190 | 制造商:AD 制造商全稱:Analog Devices 功能描述:6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller |
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