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| 型號： | ADP3189JCPZ-R7 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 5000 kHz SWITCHING FREQ-MAX, QCC40 |
| 封裝： | 6 X 6 MM, LEAD FREE, MO-220VJJD-2, LFCSP-40 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大小： | 1472K |
| 代理商： | ADP3189JCPZ-R7 |
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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
GENERAL DESCRIPTION
The ADP31891 is a highly efficient, multiphase, synchronous buck
switching regulator controller optimized for converting a 12 V
main supply into the core supply voltage required by high per-
formance 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 multimode 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, optimally positioning it 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.
The ADP3189 is specified over the extended commercial
temperature range of 0°C to 85°C and is available in a
40-lead LFCSP.
1 Protected by U.S. Patent Number 6,683,441; others pending.
FUNCTIONAL BLOCK DIAGRAM
VCC
PRECISION
REFERENCE
DELAY
UVLO
SHUTDOWN
AND BIAS
OSCILLATOR
GND
EN
ADP3189
18
VRHOT 9
VRFAN 8
TTSENSE 10
PWRGD 2
31
RT
13
RAMPADJ
12
PWM2
29
14
LLSET
4
FB
6
SS
PWM3
28
PWM4
27
PWM5
26
SW1
25
CSREF
15
CSCOMP
17
SW2
24
SW3
23
SW5
21
SW4
22
CSSUM
16
VID4
35
VID3
36
VID2
37
VID1
38
1
VID0
39
VID6
33
VID7
32
VID5
34
COMP 5
DELAY 7
ILIMIT 11
VIDSEL 40
FBRTN 3
VID
DAC
DAC + 150mV
DAC – 250mV
CSREF
CURRENT-
LIMIT
CIRCUIT
CROWBAR
CURRENT
LIMIT
CMP
CURRENT
BALANCING
CIRCUIT
2-/3-/4-/5-PHASE
DRIVER LOGIC
EN
SET
RESET
PWM1
30
OD
19
0
56
26-
00
1
850mV
CMP
BOOT
VOLTAGE
AND
SOFT START
CONTROL
THERMAL
THROTTLING
CONTROL
+
–
Figure 1.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)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(yīng)商設(shè)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 |
| ADP3190AJRQZ-RL | 功能描述:IC BUCK CTRLR 6BIT PROG 28-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)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(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| ADP3190AJRUZ-RL | 功能描述:DC/DC 開關(guān)控制器 CMOS VER ADP3188 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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