LT3514EFE#PBF
数据手册.pdfLINEAR TECHNOLOGY LT3514EFE#PBF 芯片, 降压稳压器, 350KHZ-2.2MHZ, 3.2-36V, TSSOP-24
The is a Triple Step-down Switching Regulator with 100% duty cycle operation. It has a wide operating input range of 3.2 to 36V. An on-chip boost regulator allows each channel to operate up to 100% duty cycle. The LT3514 is designed to minimize external component count and results in a simple and small application circuit. It operates robustly in fault conditions. Cycle-by-cycle peak current limit and catch diode current limit sensing protect the IC during overload conditions. Thermal shutdown protects the power switches at elevated temperatures. Soft-start helps control the peak inductor current during startup. It also features output voltage tracking and sequencing, programmable frequency, programmable undervoltage lockout and a power good pin to indicate when all outputs are in regulation.
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- Resistor-programmed constant frequency
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- Short-circuit robust
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- Anti-phase switching reduces ripple
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- Independent run/soft-start pins
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- Shutdown with UVLO
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- Internal compensation
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- Thermal shutdown
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- 100% Duty cycle operation
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- 800mV Feedback voltage