LTC3425EUH#PBF

LTC3425 is a synchronous, 4-phase boost converter with output disconnect capable of operation below 1V input. It includes four N-channel MOSFET switches and four P-channel synchronous rectifiers for an effective RDS(ON) of 0.045 ohm and 0.05 ohm, respectively. 4-phase operation greatly reduces peak inductor currents, and capacitor ripple current, and increases effective switching frequency, minimizing inductor and capacitor sizes. True output disconnect eliminates inrush current and allows zero load current in shutdown. Power saving Burst Mode operation can be user controlled or left in automatic mode. Other features include 1µA shutdown current, programmable frequency with sync in and out, programmable soft-start, antiringing control, thermal shutdown, adjustable current limit, reference output and power good comparator. It is widely used in application such as handheld computers, point-of-load regulators, 3.3V to 5V conversion etc.

• Upto 3A continuous output current
• Output disconnect and inrush current limiting
• Very low quiescent current is 12µA typical
• Input voltage range is 0.5V to 4.5V
• Adjustable output voltage is 2.4V to 5.25V
• Synchronizable oscillator with sync output, internal synchronous rectifiers
• Manual or automatic Burst Mode® operation
• Power good comparator, antiringing control
• Shutdown current is 1µA maximum, frequency accuracy is 1MHz typical
• Operating ambient temperature is -40°C to 85°C, package style is 32-lead plastic QFN

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