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参数资料
型号： MC34716EPR2
厂商： Freescale Semiconductor
文件页数： 26/27页
文件大小： 0K
描述： IC CONVERTER DDR 26QFN
标准包装： 2,500
应用： 转换器，DDR
输入电压： 3 V ~ 6 V
输出数： 2
输出电压： 0.7 V ~ 3.6 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 26-VFQFN 裸露焊盘
供应商设备封装： 26-QFN-EP（5x5）
包装： 带卷 (TR)
REVISION HISTORY
REVISION HISTORY
REVISION
1.0
DATE
2/2006
DESCRIPTION OF CHANGES
? Pre-release version
? Implemented Revision History page
2.0
2/2007
?
?
Initial release
Converted format from Market Assessment to Product Preview
? Major updates to the data, form, and style
3.0
5/2007
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
Changed Feature fom 2% to 1%, relabeled to include soft start
Change references for 45 m ? Integrated N-Channel Power MOSFETs to 50 m ?
Removed Machine Model in Maximum Ratings
Changed Input DC Supply Current (11) , Input DC Supply Current (11) , and Input DC Supply
Current (11)
Added CH 1 High Side MOSFET Drain Voltage Range
Changed Output Voltage Accuracy (12) , (13) , (14)
Changed Soft Start Adjusting Reference Voltage Range and Short-circuit Current Limit
Changed High Side N-CH Power MOSFET (M4) RDS(ON) (12) and Low Side N-CH Power MOSFET
(M5) RDS(ON) (15)
Changed M2 RDS(ON) and PVIN1 Pin Leakage Current
Added CH 2 High Side MOSFET Drain Voltage Range
Changed Output Voltage Accuracy (15) , (16) , (17)
Changed Short-circuit Current Limit (Sinking and Sourcing)
Changed High Side N-CH Power MOSFET (M6) RDS(ON) (15) and Low Side N-CH Power MOSFET
(M7) RDS(ON) (15)
Changed M3 RDS(ON) and PVIN2 Pin Leakage Current
Changed VREFOUT Buffered Reference Voltage Accuracy (20) , VREFOUT Buffered Reference
Voltage Current Capability , and VREFOUT Buffered Reference Voltage Over-current Limit
?
?
?
?
?
?
?
?
?
Changed STBY Pin Internal Pull-up Resistor and SD Pin Internal Pull-up Resistor
Changed Soft Start Duration (Normal Mode)
Changed Over-current Limit Retry Timeout Period and Output Under-voltage/Over-voltage Filter
Delay Timer
Changed Oscillator Default Switching Frequency , PG Reset Delay , and Thermal Shutdown Retry
Timeout Period (24)
Changed definition for Channel 1 Soft Start ADJUStment input (ILIM1)
Changed drawings in 34716 Typical Application
Changed table for Soft Start Adjustment
Removed PC34716EP/R2 from the ordering information and added MC34716EP/R2
Changed data sheet status to Advance Information
4.0
5.0
12/2008
4/2012
?
?
?
?
?
?
Made changes to Switching Node (SW1, SW2) Pins , BOOT1, BOOT2 Pins (Referenced to SW1,
SW2 Pins Respectively) , Output Under-voltage Threshold , Output Over-voltage Threshold , Both
channels of High Side N-CH Power MOSFET (M4) RDS(ON) (12) , Both channels of Low Side N-CH
Power MOSFET (M5) RDS(ON) (15) , Charge Device Model
Added Machine Model (MM) , Both channels of SW2 Leakage Current (Standby and Shutdown
modes) , Both channels of ( Error Amplifier DC Gain (15) , Error Amplifier Unit Gain Bandwidth (15) ,
Error Amplifier Slew Rate (15) , Error Amplifier Input Offset (15) )
Fixed drawing for Type III compensation network
Added pin 27 to Figure 3 and the 34716 Pin Definitions
Added the section Layout Guidelines
Changed typical for Minimum ON Time on page 10
34716
Analog Integrated Circuit Device Data ?
26
Freescale Semiconductor
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