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MAX8771GTL+ PDF预览

MAX8771GTL+

更新时间： 2024-11-11 20:10:51
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关
页数 文件大小 规格书
47页 1018K
描述
Switching Regulator, Current-mode, 600kHz Switching Freq-Max, BICMOS, QFN-40

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MAX8771GTL+ 技术参数

是否Rohs认证： 符合生命周期：Contact Manufacturer
包装说明：HVQCCN,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.73其他特性：ALSO OPERATES IN PFM MODE
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：4.5 V标称输入电压：5 V
JESD-30 代码：S-XQCC-N40JESD-609代码：e3
长度：6 mm功能数量：1
端子数量：40最高工作温度：105 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
座面最大高度：0.8 mm表面贴装：YES
切换器配置：BUCK最大切换频率：600 kHz
技术：BICMOS温度等级：INDUSTRIAL
端子面层：MATTE TIN端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：6 mm
Base Number Matches：1

MAX8771GTL+ 数据手册

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®
CONFIDENTIAL INFORMATION – RESTRICTED TO INTEL IMVP-6 LICENSEES  
19-3913; Rev 0; 10/05  
MAX8770/MAX8771/MAX8772 Dual-Phase, Quick-  
PWM Controller for IMVP-6+ CPU Core Power Supplies  
General Description  
Features  
The MAX8770/MAX8771/MAX8772 are 2/1-phase inter-  
leaved Quick-PWM™ step-down VID power-supply con-  
trollers for notebook CPUs. True out-of-phase operation  
reduces input ripple current requirements and output volt-  
age ripple while easing component selection and layout  
difficulties. The Quick-PWM control provides instanta-  
neous response to fast load current steps. Active voltage  
positioning reduces power dissipation and bulk output  
capacitance requirements and allows ideal positioning  
compensation for tantalum, polymer, or ceramic bulk out-  
put capacitors.  
♦ Single/Dual-Phase, Quick-PWM Controller  
0.4% VOUT Accuracy Over Line, Load, and  
Temperature  
♦
♦ 7-Bit On-Board DAC: 0 to +1.5000V Output Adjust  
Range  
♦ Dynamic Phase Selection Optimizes Active/Sleep  
Efficiency  
♦ Transient Phase Overlap Reduces Output  
Capacitance  
The MAX8770/MAX8771/MAX8772 are intended for two  
different notebook CPU core applications: either bucking  
down the battery directly to create the core voltage, or  
else bucking down the +5V system supply. The single-  
stage conversion method allows this device to directly  
step down high-voltage batteries for the highest possible  
efficiency. Alternatively, 2-stage conversion (stepping  
down the +5V system supply instead of the battery) at  
higher switching frequency provides the minimum possi-  
ble physical size.  
♦ Integrated Boost Switches  
♦ Active Voltage Positioning with Adjustable Gain  
♦ Programmable 200kHz to 600kHz Switching  
Frequency  
♦ Accurate Current Balance and Current Limit  
♦ Adjustable Slew-Rate Control  
♦ Power-Good (PWRGD), Clock Enable (CLKEN),  
Power Monitor (POUT) and Thermal Fault  
(VRHOT) Outputs  
A slew-rate controller allows controlled transitions  
between VID codes, controlled soft-start and shutdown,  
and controlled exit from suspend. A thermistor-based  
temperature sensor provides a programmable thermal-  
fault output (VRHOT). A power-monitor output (POUT)  
provides an analog voltage output proportional to the  
power consumed by the CPU. The MAX8770/MAX8771/  
MAX8772 include output undervoltage protection (UVP)  
and thermal protection, and the MAX8770/MAX8771 also  
include overvoltage protection (OVP). When any of these  
protection features detect a fault, the controller shuts  
down. A voltage-regulator power-OK (PWRGD) output  
indicates the output is in regulation. A clock enable  
(CLKEN) output provides proper system startup sequenc-  
ing. Additionally, the MAX8771 has a phase-good  
(PHASEGD) output, and the MAX8770/MAX8772 includes  
true differential current sense.  
♦ Phase Fault (PHASEGD) Output (MAX8771)  
♦ Drives Large Synchronous Rectifier MOSFETs  
♦ 4V to 26V Battery-Input-Voltage Range  
♦ Output OV Protection (MAX8770/MAX8771)  
♦ UV and Thermal-Fault Protection  
♦ Power Sequencing and Timing  
♦ Soft-Startup and Soft-Shutdown  
Ordering Information  
PART  
TEMP  
PIN-PACKAGE  
MAX8770GTL+ -40°C to +105°C 40 Thin QFN 6mm x 6mm  
MAX8771GTL+ -40°C to +105°C 40 Thin QFN 6mm x 6mm  
MAX8772GTL+ -40°C to +105°C 40 Thin QFN 6mm x 6mm  
+Denotes lead-free package.  
The MAX8770/MAX8771/MAX8772 implement the Intel  
IMVP-6+ code set and the required IMVP-6+ control sig-  
nals. The MAX8770/MAX8771/MAX8772 are available in a  
40-pin TQFN package.  
Applications  
IMVP-6+ Core Supply  
Multiphase CPU Core Supply  
Voltage-Positioned, Step-Down Converters  
Notebook/Desktop Computers  
Blade Servers  
Pin Configuration appears at end of data sheet.  
Intel is a registered trademark of Intel, Corp.  
Quick-PWM is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
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