LT8292AFE#PBF

LT8292AFE#PBF is a 60V low IQ full-featured synchronous buck-boost controller. It regulates output voltage and output or input current from an input voltage above, below, or equal to the output voltage. The proprietary buck-boost peak current mode architecture allows adjustable and phase-lockable 100kHz to 650kHz fixed frequency operation, or internal spread spectrum operation for low EMI. When output is regulated above 5V, the LT8292 can operate from an input supply as low as 3V after start-up. The low quiescent current at no-load extends operating run time in battery-powered systems. At light load, either forced continuous, pulse-skipping, or low-ripple burst mode can be selected. The LT8292 features split pull-up/pull-down gate drivers and four selectable dead time settings with shoot-through protection, which allows both optimized efficiency and EMI. Applications include industrial, telecom systems, general purpose buck-boost power supplies, high-power battery-powered systems.

• 4-switch single inductor architecture that allows VIN above, below, or equal to VOUT
• Split gate driver outputs, selectable dead time settings, leaderless current sharing
• Spread spectrum frequency modulation
• Integrated bootstrap diodes
• VOUT disconnected from VIN during shutdown
• VIN operating voltage range from 5.5 to 60V at -40°C ≤ TJ ≤ 125°C, VOUT < 5V
• VOUT quiescent current is 0.1μA typ at VEN/UVLO=0.3V, VOUT=12V
• Oscillator switching frequency is 100kHz typ at RT=523kohm
• 38-lead plastic TSSOP package
• Temperature range from -40°C to 125°C