LTC1702

LTC1702 Dual 550kHz Synchronous 2-Phase Switching Regulator Controller FEATURES s s s s s DESCRIPTIO s s s s s Two Independent Controllers in One Package Two Sides Run Out-of-Phase to Minimize CIN All N-Channel External MOSFET Architecture No External Current Sense Resistors Excellent Output Regulation: 1% Total Output Accuracy 550kHz Switching Frequency Minimizes External Component Size 1A to 25A Output Current per Channel High Efficiency over Wide Load Current Range Quiescent Current Drops Below 100µA in Shutdown Small 24-Pin Narrow SSOP Package U APPLICATIO S s s s s Microprocessor Core and I/O Supplies Multiple Logic Supply Generator Distributed Power Applications High Efficiency Power Conversion , LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. The LTC®1702 is a dual switching regulator controller optimized for high efficiency with low input voltages. It includes two complete, on-chip, independent switching regulator controllers each designed to drive a pair of external N-channel MOSFET devices in a voltage mode feedback, synchronous buck configuration. The LTC1702 uses a constant-frequency, true PWM design switching at 550kHz, minimizing external component size and cost and maximizing load transient performance. The synchronous buck architecture automatically shifts to discontinuous and then to Burst ModeTM operation as the output load decreases, ensuring maximum efficiency over a...