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MC34712EP

更新时间: 2024-02-12 20:41:30
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 开关双倍数据速率
页数 文件大小 规格书
23页 473K
描述
3.0A 1.0MHz Fully Integrated DDR Switch-Mode Power Supply

MC34712EP 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:4 X 4 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, QFN-24针数:24
Reach Compliance Code:unknown风险等级:5.65
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:6 V最小输入电压:3 V
标称输入电压:3.3 VJESD-30 代码:S-XQCC-N24
长度:4 mm湿度敏感等级:3
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:3 A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:1 mm表面贴装:YES
切换器配置:BUCK最大切换频率:1000 kHz
温度等级:INDUSTRIAL端子面层:NOT SPECIFIED
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:40
宽度:4 mmBase Number Matches:1

MC34712EP 数据手册

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Document number: MC34712  
Rev. 4.0, 5/2007  
Freescale Semiconductor  
Advance Information  
3.0 A 1.0 MHz Fully Integrated  
DDR Switch-Mode Power  
Supply  
34712  
The 34712 is a highly integrated, space efficient, low cost, single  
synchronous buck switching regulator with integrated N-channel  
power MOSFETs. It is a high performance point-of-load (PoL) power  
supply with the ability to track an external reference voltage.  
SWITCH-MODE POWER SUPPLY  
Its high efficient 3.0 A sink and source capability combined with its  
voltage tracking/sequencing ability and tight output regulation, makes  
it ideal to provide the termination voltage (VTT) for modern data buses  
such as Double-Data-Rate (DDR) memory buses. It also provides a  
buffered output reference voltage (VREF) to the memory chipset  
The 34712 offers the designer the flexibility of many control,  
supervisory, and protection functions to allow for easy implementation  
of complex designs. It is housed in a Pb-Free, thermally enhanced,  
and space efficient 24-Pin Exposed Pad QFN.  
Features  
EP SUFFIX  
98ARL10577D  
24-PIN QFN  
• 45 mIntegrated N-Channel Power MOSFETs  
• Input Voltage Operating Range from 3.0 V to 6.0 V  
±1 % Accurate Output Voltage, Ranging from 0.7 V to 1.35 V  
±1 % Accurate Buffered Reference Output Voltage  
• Programmable Switching Frequency Range from 200 kHz to  
1.0 MHz with a default of 1.0 MHz  
• Over Current Limit and Short Circuit Protection  
• Thermal Shutdown  
• Output Overvoltage and Undervoltage Detection  
• Active Low Power Good Output Signal  
ORDERING INFORMATION  
Temperature  
Package  
Device  
Range (T )  
A
MC34712EP/R2  
-40 to 85°C  
24 QFN  
• Active Low Standby and Shutdown Inputs  
• Pb-Free Packaging Designated by Suffix Code EP.  
VIN  
(3.0V TO 6.0V)  
34712  
PVIN  
BOOT  
TERMINATING  
RESISTORS  
VDDQ  
VREFIN  
VTT  
SW  
VOUT  
VIN  
MEMORY  
BUS  
VDDQ  
VDDI  
FREQ  
GND  
SD  
INV  
DDR MEMORY  
COMP  
CHIPSET  
VDDQ  
VREFOUT  
VREF  
VIN  
DDR MEMORY  
CONTROLER  
PGND  
PG  
MCU  
STBY  
Figure 1. 34712 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2007. All rights reserved.  

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