LTC3622EDE-23/5#PBF

LTC3622EDE-23/5#PBF is a dual 1A output, high-efficiency synchronous monolithic step-down regulator capable of operating from input supplies up to 17V. This regulator features ultralow quiescent current and high efficiency over a wide output voltage range. It operates from an input voltage range of 2.7V to 17V and provides an adjustable output from 0.6V to VIN while delivering up to 1A of output current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency. Burst Mode® operation provides the highest efficiency at light loads while pulse-skipping mode provides the lowest ripple noise. The switching regulators can be synchronized to an external clock. This regulator is commonly used in applications such as battery-powered systems, point-of-load supplies, and portable handheld scanners.

• Wide VIN range from 2.7V to 17V, wide VOUT range from 0.6V to VIN
• Current mode operation for excellent line and load transient response
• Phase shift programmable with external clock, selectable current limit
• Internal compensation and soft-start, up to 95% efficiency
• Input quiescent current is 3mA typical at (active mode, VRUN1 = VRUN2 = 2V)
• Output voltage load regulation is 0.1% typical at (TJ = 25°C)
• Minimum on-time is 75ns typical at (VFB = 0.7V, VIN1 = VIN2 = 5, TJ = 25°C)
• Oscillator frequency is 2.25MHz typical at (40°C ≤ TA ≤ 150°C)
• Soft start time 0.5ms typical at (TJ = 25°C), 5V VOUT
• Operating junction temperature range from -40°C to 125°C, 14-lead plastic DFN package

Notes

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