LTC1702AIGN#PBF

LTC1702 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 Nchannel MOSFETs in a voltage mode feedback, synchronous buck configuration. It 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 Mode® operation as the output load decreases, ensuring maximum efficiency over a wide range of load currents. It features an on-board reference trimmed to 0.5% and can provide better than 1% regulation at the converter outputs. It is used in application such as microprocessor, DSP core and I/O supplies, multiple logic supply generator, distributed power applications, high efficiency power conversion.

• Pin compatible with the LTC1702 with improved current limit control
• Two sides run out-of-phase to minimize CIN
• No external current sense resistors, two independent controllers in one package
• All N-channel external MOSFET architecture
• 1A to 25A output current per channel
• High efficiency over wide load current range
• VCC supply voltage range is 3V to 7V
• VCC supply current is 2.2mA typical at (test circuit 1, CL = 0pF, TA = 25°C, VCC = 5V)
• Operating temperature is -40°C to 85°C
• Package style is 24-lead narrow plastic SSOP

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