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| 型号： | MAX8810AETM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/50页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR PWM W/MOSFET 48TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 应用： | 控制器，Intel VR10、VR11 |
| 输入电压： | 4.5 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 1.6 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 管件 |
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ATION
EVALU
AVAIL
19-3886; Rev 1; 8/06
KIT
ABLE
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM
Controllers with Integrated Dual MOSFET Drivers
General Description
The MAX8809A/MAX8810A synchronous, 2-/3-/4-
phase, step-down, current-mode controllers with inte-
grated dual-phase MOSFET drivers provide flexible
solutions that fully comply with Intel ? VRD11/VRD10
and AMD K8 Rev F CPU core supplies. The flexible
design supplies load currents up to 150A for low-volt-
age CPU core power requirements.
A tri-state SEL input is available to configure the VID
logic for either the Intel VRD11/VRD10 or AMD K8 Rev F
applications. An enable input (EN) is available to dis-
able the IC. True-differential remote output-voltage
sensing enables precise regulation at the load by elimi-
nating the effects of trace impedance in the output and
return paths. A high-accuracy DAC combined with pre-
cision current-sense amplifiers and droop control
enable the MAX8809A/MAX8810A to meet the most
stringent tolerance requirements of new-generation
high-current CPUs. These ICs use either integral or volt-
age-positioning feedback control to achieve high out-
put-voltage accuracy.
The COMP input allows for either positive or negative
voltage offsets from the VID code voltage. A power-
good signal (VRREADY) is provided for startup
sequencing and fault annunciation. The SS/OVP pin
enables the programming of the soft-start period, and
provides an indication of an overvoltage condition. A
soft-stop feature prevents negative voltage spikes on
the output at turn-off, eliminating the need for an exter-
nal Schottky clamp diode.
The MAX8809A/MAX8810A incorporate a proprietary
“rapid active average” current-mode control scheme for
fast and accurate transient-response performance, as
well as precise load current sharing. Either the inductor
DCR or a resistive current-sensing element is used for
current sensing. When used with DCR sensing, rapid
active current averaging (RA 2 ) eliminates the tolerance
effects of the inductance and associated current-sens-
ing components, providing superior phase current
matching, accurate current limit, and precise load-line.
Features
? VRD11/VRD10 and K8 Rev F Compliant
? ±0.35% Initial Output Voltage Accuracy
? Dual Integrated Drivers with Integrated Bootstrap
Diodes
? Up to 26V Input Voltage
? Adaptive Shoot-Through Protection
? Soft-Start, Soft-Stop, VRREADY Output
? Fast Load Transient Response
? Individual Phase, Fully Temperature-
Compensated Cycle-by-Cycle Average Current
Limit
? Current Foldback at Short Circuit
? Voltage Positioning or Integral Feedback
? Differential Remote Voltage Sensing
? Programmable Positive and Negative Offset
Voltages
? 150kHz to 1.2MHz Switching Frequency per Phase
? NTC-Based, Temperature-Independent Load Line
? Precise Phase Current Sharing
? Programmable Thermal-Monitoring Output
(VRHOT)
? 6A Peak MOSFET Drivers
? 0.3 Ω /0.85 Ω Low-Side, 0.8 Ω /1.1 Ω High-Side
Drivers (typ)
? 40-Pin and 48-Pin Thin QFN Packages
Applications
Desktop PCs
Servers, Workstations
Desknote and LCD PCs
Voltage-Regulator Modules
Ordering Information
The MAX8809A operates as a single-chip, 2-phase
solution with integrated drivers. It also provides a 3rd-
phase PWM output and easily supports 3-phase design
by adding the MAX8552 high-performance driver. The
MAX8810A enables up to 4-phase designs by adding
the MAX8523 high-performance dual driver for a com-
pact 2-chip solution.
PART
MAX8809A ETL+
MAX8810A ETM+
PIN-
PACKAGE
40 Thin QFN
5mm x 5mm
48 Thin QFN
6mm x 6mm
PKG
CODE
T4055-1
T4866-1
FUNCTION
2-/3-phase
2-/3-/4-phase
+ Denotes lead-free package.
Intel is a registered trademark of Intel Corp.
Note: All parts are specified in the -40°C to +85°C extended
temperature range.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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| MAX8810AETM+ | 功能描述:电流型 PWM 控制器 VRD11/10 K8 Rev. F 2/3/4-Phase PWM Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX8810AETM+T | 功能描述:电流型 PWM 控制器 VRD11/10 K8 Rev. F 2/3/4-Phase PWM Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX8811EEE+ | 功能描述:功率驱动器IC High-Speed Dual Phase Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX8811EEE+T | 功能描述:功率驱动器IC High-Speed Dual Phase Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX8814ETA+ | 制造商:Maxim Integrated Products 功能描述:CHGR LI-ION/LI-POL 570MA 4.2V 8TDFN EP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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