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| 型號： | ADP3188 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 6-Bit Programmable 2-/3-/4-Phase Synchronous Buck Controller |
| 中文描述： | 6位可編程2-/3-/4-Phase同步降壓控制器 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 956K |
| 代理商： | ADP3188 |
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6-Bit Programmable 2-/3-/4-Phase
Synchronous Buck Controller
ADP3188
FEATURES
Selectable 2-, 3- or 4-phase operation at up to
1 MHz per phase
±9.5 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
6-bit digitally programmable 0.8375 V to 1.6 V output
Programmable short-circuit protection with
programmable latch-off delay
APPLICATIONS
Desktop PC power supplies for
Next-generation Intel processors
VRM modules
GENERAL DESCRIPTION
The ADP3188 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
performance Intel processors. The part uses an internal 6-bit
DAC to read a voltage identification (VID) code directly from
the processor, which is used to set the output voltage between
0.8375 V and 1.6 V. It 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 relationship of the output signals can be pro-
grammed to provide 2-, 3-, or 4-phase operation, allowing
the construction of up to four complementary buck
switching stages.
The ADP3188 also includes programmable no-load offset and
slope functions to adjust the output voltage as a function of
the load current, so it is always optimally positioned for a system
transient. The ADP3188 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 ADP3188 is specified over the commercial tempera-
ture range of 0°C to 85°C and is available in 28-lead, TSSOP
and QSOP packages.
FUNCTIONAL BLOCK DIAGRAM
0
VCC
28
GND
ADP3188
EN
DELAY
ILIMIT
PWRGD
RT
13
RAMPADJ
14
PWM2
FB
PWM3
PWM4
SW1
CSSUM
CSCOMP
SW2
SW3
SW4
CSREF
PWM1
VID4 VID3 VID2 VID1
VID5
VID0
FBRTN
COMP
DAC+150mV
CSREF
DAC-250mV
EN
CROWBAR
CURRENT
LIMIT
RESET
RESET
RESET
2-/3-/4-PHASE
DRIVER LOGIC
RESET
EN
SET
CURRENT
BALANCING
CIRCUIT
OSCILLATOR
DELAY
UVLO
SHUTDOWN
AND BIAS
CURRENT
LIMIT
CIRCUIT
SOFT
START
PRECISION
REFERENCE
VID
DAC
CMP
CMP
CMP
CMP
26
8
25
24
23
17
18
22
21
20
16
27
1
2
3
4
6
5
7
19
11
12
15
10
9
Figure 1.
Rev.
A
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.
Tel: 781.329.4700Fax: 781.461.3113
www.analog.com相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADP3188JRQZ-REEL | 6-Bit Programmable 2-/3-/4-Phase Synchronous Buck Controller |
| ADP3188JRUZ-REEL | 6-Bit Programmable 2-/3-/4-Phase Synchronous Buck Controller |
| ADP3189 | 8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller |
| ADP3189JCPZ-RL | 8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller |
| ADP3189JCPZ-RLZ | 8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3188JRQZ-REEL | 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 |
| ADP3188JRUZ-REEL | 功能描述:IC CTRLR BUCK 6BIT PROGR 28TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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) |
| ADP3189 | 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 |
| 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(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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) |
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