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MC34702EKR2 PDF预览

MC34702EKR2

更新时间: 2024-01-22 00:53:54
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 稳压器开关
页数 文件大小 规格书
38页 862K
描述
3.0 A Switch-Mode Power Supply with Linear Regulator

MC34702EKR2 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:LEAD FREE, PLASTIC, SOICW-32
针数:32Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.31.00.01
风险等级:5.82其他特性:ALSO CONTAINS BOOST REGULATOR
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:2.8 V标称输入电压:3.3 V
JESD-30 代码:R-PDSO-G32JESD-609代码:e3
长度:11 mm湿度敏感等级:3
功能数量:1端子数量:32
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:4 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP32,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):245认证状态:Not Qualified
座面最大高度:2.65 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:400 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:7.5 mm
Base Number Matches:1

MC34702EKR2 数据手册

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Document Number: MC34702  
Rev 6.0, 2/2007  
Freescale Semiconductor  
Technical Data  
3.0 A Switch-Mode Power  
Supply with Linear Regulator  
34702  
The 34702 provides the means to efficiently supply the Freescale  
Power QUICC™ I, II, and other families of Freescale  
microprocessors and DSPs. The 34702 incorporates a high-  
performance switching regulator, providing the direct supply for the  
microprocessor’s core, and a low dropout (LDO) linear regulator  
control circuit providing the microprocessor I/O and bus voltage.  
POWER SUPPLY  
INTEGRATED CIRCUIT  
The switching regulator is a high-efficiency synchronous buck  
regulator with integrated N-channel power MOSFETs to provide  
protection features and to allow space-efficient, compact design.  
The 34702 incorporates many advanced features; e.g., precisely  
maintained up/down power sequencing, ensuring the proper  
operation and protection of the CPU and power system.  
Features  
EK (PB-FREE) SUFFIX  
98AARH99137A  
• Operating Voltage from 2.8 V to 6.0 V  
• High-Accuracy Output Voltages  
32-PIN SOICW  
• Fast Transient Response  
• Switcher Output Current Up to 3.0 A  
• Undervoltage Lockout and Overcurrent Protection  
• Enable Inputs and Programmable Watchdog Timer  
• Voltage Margining via I2C™ Bus  
ORDERING INFORMATION  
• Reset with Programmable Power-ON Delay  
• Pb-Free Packaging Designated by Suffix Code EK  
Temperature  
Package  
Device  
Range (T )  
A
I2C is a trademark of Philips Corporation.  
MC34702EK/R2  
-40 to 85°C  
32 SOICW  
2.8 V to 6.0 V Input  
34702  
Other  
Circuits  
VIN2  
VIN1  
VBD  
VBST  
LDRV  
CS  
Adjustable:  
0.8 V to VIN -  
Dropout  
LDO  
LFB  
VDDH (I/Os)  
RT  
ADDR  
MPC8xxx  
SDA  
SCL  
PORESET  
RST  
GND  
Adjustable:  
0.8 V to VIN -  
Dropout  
VBST  
BOOT  
SW  
EN1  
VDDL (Core)  
EN2  
VOUT  
CLKSYN  
PGND  
CLKSEL  
FREQ  
INV  
Optional  
VDDI  
Figure 1. 34702 Simplified Application Diagram  
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,  
as may be required, to permit improvements in the design of its products.  
© Freescale Semiconductor, Inc., 2007. All rights reserved.  

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