(China (Mainland))
Product Summary
The LTC3862 is a two phase constant frequency, current mode boost and SEPIC controller that drives N-channel power MOSFETs. Two phase operation reduces system ?ltering capacitance and inductance requirements. The 5V gate drive is optimized for most automotive and industrial grade power MOSFETs.
Adjustable slope compensation gain allows the user to ?ne- tune the current loop gain, improving noise immunity.
The operating frequency can be set with an external resistor over a 75kHz to 500kHz range and can be synchronized to an external clock using the internal PLL. Multi-phase operation is possible using the SYNC input, the CLKOUT output and the PHASEMODE control pin allowing 2-, 3-, 4-, 6- or 12-phase operation.
Other features include an internal 5V LDO with undervoltage lockout protection for the gate drivers, a precision RUN pin threshold with programmable hysteresis, soft-start and programmable leading edge blanking and maximum duty cycle
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Features
Wide VIN Range: 4V to 36V Operation
2-Phase Operation Reduces Input and Output Capacitance
Fixed Frequency, Peak Current Mode Control
5V Gate Drive for Logic-Level MOSFETs
Adjustable Slope Compensation Gain
Adjustable Max Duty Cycle (Up to 96%)
Adjustable Leading Edge Blanking
±1% Internal Voltage Reference
Programmable Operating Frequency with One External Resistor (75kHz to 500kHz)
Phase-Lockable Fixed Frequency 50kHz to 650kHz
SYNC Input and CLKOUT for 2-, 3-, 4-, 6- or 12-Phase Operation (PHASEMODE Programmable)
Internal 5V LDO Regulator
24-Lead Narrow SSOP Package
5mm × 5mm QFN with 0.65mm Lead Pitch and
24-Lead Thermally Enhanced TSSOP Packages
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 LTC3862HUH#PBF |
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IC REG CTRLR BST PWM CM 24-QFN |
Data Sheet |
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LTC3025 |
Other |
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Data Sheet |
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LTC3025EDC#TR |
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IC REG LDO ADJ .3A 6DFN |
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LTC3025EDC#TRM |
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IC REG LDO ADJ .3A 6DFN |
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LTC3025EDC#TRMPBF |
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IC REG LDO ADJ .3A 6DFN |
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LTC3025EDC#TRPBF |
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IC REG LDO ADJ .3A 6DFN |
Data Sheet |
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LTC3025EDC-1#TRMPBF |
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IC REG LDO ADJ .5A 6DFN |
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