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IR3521 数据表(PDF) 1 Page - International Rectifier |
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IR3521 数据表(HTML) 1 Page - International Rectifier |
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1 / 45 page  IR3521 Page 1 V3.03 DATA SHEET XPHASE3 TM AMD SVID CONTROL IC DESCRIPTION The IR3521 Control IC combined with an xPHASE3 TM Phase IC provides a full featured and flexible way to implement a complete AMD SVID power solution. It provides outputs for both the VDD core and VDDNB auxiliary planes required by the CPU. The IR3521 provides overall system control and interfaces with any number of Phase ICs each driving and monitoring a single phase. The xPHASE3 TM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches. FEATURES 2 converter outputs for the AMD processor VDD core and VDDNB auxiliary planes Supports High Speed (HS) I 2C Serial communications PSI_L serial commands are communicated to a programmable number of phase ICs 0.5% overall system set point accuracy High speed error amplifiers with wide bandwidth of 20MHz and fast slew rate of 10V/us Remote sense amplifiers provide differential sensing and require less than 50uA bias current Programmable Dynamic VID Slew Rates Programmable VID Offset (VDD output only) Programmable output impedance (VDD output only) Programmable Dynamic OC for IDD_Spike Programmable per phase switching frequency of 250kHz to 1.5MHz Hiccup over current protection with delay during normal operation Central over voltage detection and communication to phase ICs through IIN (ISHARE) pin OVP disabled during dynamic VID down to prevent false triggering Over voltage signal to system with over voltage detection during powerup and normal operation Detection and protection of open remote sense lines Gate Drive and IC bias linear regulator control with programmable output voltage and UVLO Small thermally enhanced 32L MLPQ (5mm x 5mm) package ORDERING INFORMATION Device Package Order Quantity IR3521MTRPBF 32 Lead MLPQ (5 x 5 mm body) 3000 per reel IR3521MPBF (Samples Only) 32 Lead MLPQ (5 x 5 mm body) 100 piece strips |
类似零件编号 - IR3521 |
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类似说明 - IR3521 |
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