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参数资料
型号： LTC3880IUJ-1#TRPBF
厂商： Linear Technology
文件页数： 3/112页
文件大小： 0K
描述： IC REG CTRLR BUCK PWM CM 40-QFN
软件下载： LTpowerPlay™
标准包装： 2,000
系列： PolyPhase®
PWM 型： 电流模式
输出数： 2
频率 - 最大： 1MHz
电源电压： 4.5 V ~ 24 V
降压： 是
升压： 无
回扫： 无
反相： 无
倍增器： 无
除法器： 无
Cuk： 无
隔离： 无
工作温度： -40°C ~ 125°C
封装/外壳： 40-WFQFN 裸露焊盘
包装： 带卷 (TR)
LTC3880/LTC3880-1
TABLE OF CONTENTS
RCONFIG (External Resistor
Configuration Pins) .................................................48
Voltage Selection ................................................48
Frequency and Phase Selection Using RCONFIG 49
Address Selection Using RCONFIG .....................50
Efficiency Considerations ....................................... 51
Checking Transient Response ................................. 52
PC Board Layout Checklist .....................................53
PC Board Layout Debugging ...................................55
Design Example ......................................................56
Connecting the USB to the I 2 C/SMBus/PMBus
Controller to the LTC3880 In System ......................58
LTpowerPlay: An Interactive GUI for Digital Power . 59
PMBus Communication and Command Processing 60
PMBus Command Details ............................... 62
Addressing and Write Protect .................................62
General Configuration Registers .............................64
On/Off/Margin ........................................................65
PWM Config ........................................................... 67
Voltage....................................................................69
Input Voltage and Limits.....................................69
Output Voltage and Limits .................................. 70
Current....................................................................73
Input Current Calibration ................................... 73
Output Current Calibration ................................. 73
Input Current ......................................................73
Output Current.................................................... 74
Temperature............................................................ 75
External Temperature Calibration........................ 75
External Temperature Limits............................... 76
Timing ....................................................................77
Timing—On Sequence/Ramp.............................77
Timing—Off Sequence/Ramp ............................ 78
Precondition for Restart ..................................... 79
Fault Response ....................................................... 79
Fault Responses All Faults .................................. 79
Fault Responses Input Voltage ........................... 79
Fault Responses Output Voltage .........................80
Fault Responses Output Current .........................83
Fault Responses IC Temperature ........................84
Fault Responses External Temperature...............85
Fault Sharing...........................................................86
Fault Sharing Propagation ..................................86
Fault Sharing Response ......................................88
Scratchpad .............................................................88
Identification ...........................................................89
Fault Warning and Status........................................ 91
Telemetry ................................................................96
NVM Memory Commands ......................................98
Store/Restore .....................................................98
Fault Logging ......................................................99
Block Memory Write/Read................................ 103
Typical Applications .................................... 105
Package Description ................................... 110
Revision History ........................................ 111
Typical Application ..................................... 112
Related Parts ............................................ 112
3880fb
For more information www.linear.com/LTC3880
3
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相关代理商/技术参数
参数描述
LTC3883EUH#PBF 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM VM 32-QFN 制造商:Linear Technology 功能描述:BUCK CNTRL 24V 1MHZ 0.5/5.5V 32QFN 制造商:Linear Technology 功能描述:BUCK, CNTRL, 24V, 1MHZ, 0.5/5.5V, 32QFN 制造商:Linear Technology 功能描述:PWM CONTROLLER, BUCK, 1MHZ, 24V, QFN-32, Input Voltage:24V, Output Voltage:5.5V, Output Current:30A, Supply Voltage Min:4.5V, Supply Voltage Max:24V, Digital IC Case Style:QFN, No. of Pins:32, Frequency:1MHz, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-SWREG/Controller, Digitally Programmable, Multiphase Step-Down DC/DC Controll
LTC3883EUH#TRPBF 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM VM 32-QFN 制造商:Linear Technology 功能描述:DP-SWREG/Controller, Digitally Programmable, Multiphase Step-Down DC/DC Controll
LTC3883EUH-1#PBF 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM VM 32-QFN 制造商:Linear Technology 功能描述:BUCK CNTRL 24V 1MHZ 0.5/5.5V 32QFN 制造商:Linear Technology 功能描述:BUCK, CNTRL, 24V, 1MHZ, 0.5/5.5V, 32QFN 制造商:Linear Technology 功能描述:PWM CONTROLLER, BUCK, 1MHZ, 24V, QFN-32, Input Voltage:24V, Output Voltage:5.5V, Output Current:30A, Supply Voltage Min:4.5V, Supply Voltage Max:24V, Digital IC Case Style:QFN, No. of Pins:32, Frequency:1MHz, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-SWREG/Controller, Digitally Programmable, Multiphase Step-Down DC/DC Controll
LTC3883EUH-1#TRPBF 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM VM 32-QFN
LTC3883IUH#PBF 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Sync Step Down 4.5V to 24V Input 32-Pin QFN EP 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM VM 32-QFN 制造商:Linear Technology 功能描述:BUCK CNTRL 24V 1MHZ 0.5/5.5V 32QFN 制造商:Linear Technology 功能描述:BUCK, CNTRL, 24V, 1MHZ, 0.5/5.5V, 32QFN 制造商:Linear Technology 功能描述:PWM CONTROLLER, BUCK, 1MHZ, 24V, QFN-32, Input Voltage:24V, Output Voltage:5.5V, Output Current:30A, Supply Voltage Min:4.5V, Supply Voltage Max:24V, Digital IC Case Style:QFN, No. of Pins:32, Frequency:1MHz, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-SWREG/Controller, Digitally Programmable, Multiphase Step-Down DC/DC Controll
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