LTC7878AUH#TRPBF

LTC7878AUH#TRPBF is a high-performance 4-switch buck-boost switching regulator controller with inductor DCR current sensing that operates from an input voltage above, below or equal to the output voltage. The constant-frequency, peak current mode architecture allows a phase-lockable switching frequency of up to 600KHz, while a programmable input or output current loop regulates the average input or output current accurately supporting battery charging applications. With a wide 5V to 70V input and output range and seamless, low-noise transitions between operating regions, it is ideal for industrial and telecom systems. It features forced continuous mode/pulse-skipping mode operation. Additional features include 7V N-channel gate drivers, smart EXTVCC auxiliary supply, and programmable inductor peak current limit. A PGOOD pin indicates when the output is within 10% of its designed set point. Applications includes industrial and telecom systems, distributed DC power or battery systems.

• 32-lead plastic QFN package, temperature range from -40°C to 125°C
• Synchronous rectification up to 98% efficiency
• ±1% output voltage accuracy 1V ≤ VOUT ≤ 70V
• DCR or RSENSE current sensing
• Peak current mode control in buck/boost/buckboost mode
• 7V NMOS gate drivers
• Phase-lockable frequency (100KHz to 600KHz)
• Multiphase/multi-ICs parallel operation

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