(China (Mainland))
Product Summary
The LTC3731CG is a PolyPhase synchronous step-down switching regulator controller that drives all N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The applications of the LTC3731CG include Desktop Computers and Servers, High Performance Notebook Computers, High Output Current DC/DC Power Supplies.
Parametrics
LTC3731CG absolute maximum ratings: (1)Topside Driver Voltages (BOOSTN): 38V to –0.3V; (2)Switch Voltage (SWN): 32V to –5V; (3)Boosted Driver Voltage (BOOSTN – SWN):7V to –0.3V; (4)Peak Output Current <1ms (TGN, BGN): 5A; (5)Supply Voltages (VCC, VDR), PGOOD Pin Voltage: 7V to –0.3V; (6)RUN/SS, PLLFLTR, PLLIN, UVADJ,; (7)FCB Voltages: VCC to –0.3V; (8)ITH Voltage: 2.4V to –0.3V; (9)Operating Ambient Temperature Range: 0℃ to 70℃; (10)Junction Temperature: 125℃; (11)Storage Temperature Range: –65℃ to 150℃; (12)Lead Temperature G Package (Soldering, 10sec): 300℃; (13)Peak Body Temperature UH Package: 240℃.
Features
LTC3731CG features: (1)3-Phase Current Mode Controller with Onboard MOSFET Drivers; (2)±5% Output Current Matching Optimizes Thermal Performance and Size of Inductors and MOSFETs; (3)Differential Amplifier Accurately Senses VOUT; (4)±1% VREF Accuracy Over Temperature; (5)Reduced Power Supply Induced Noise; (6)±10% Power Good Output Indicator; (7)250kHz to 600kHz Per Phase, PLL, Fixed Frequency; (8)PWM, Stage SheddingTM or Burst ModeR Operation.
Diagrams
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 LTC3731CG |
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IC REG CTRLR BUCK PWM CM 36-SSOP |
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LTC3731CG#PBF |
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IC REG CTRLR BUCK PWM CM 36-SSOP |
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LTC3731CG#TR |
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IC REG CTRLR BUCK PWM CM 36-SSOP |
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LTC3731CG#TRPBF |
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IC REG CTRLR BUCK PWM CM 36-SSOP |
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