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

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party