Analog Devices Inc.

The LTC3351 is a backup power controller that charges and monitors a series stack of one to four supercapacitors. The LTC3351?s synchronous step-down controller drives N-channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter runs in reverse as a step-up converter to deliver power from the supercapacitor stack to the backup supply rail. Internal balancers eliminate the need for external balance resistors and each capacitor has a shunt regulator for overvoltage protection.The LTC3351 monitors system voltages, currents, stack capacitance and ESR which can all be read over the I2C/SMBus port. The hot swap controller uses N-channel MOSFETs for inrush control and a low loss path from the input to the output. The ideal diode controller uses an N-channel MOSFET for a low loss power path from the supercapacitors to the output. The LTC3351 is available in a thermally enhanced low profile 44-lead 4mm ? 7mm ? 0.75mm QFN surface mount package.APPLICATIONS Swappable PCIE Cards with NVM High Current 12V Ride-Through UPS Servers/Mass Storage/High Availability Systems

* $158.16 - * $162.02
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DigiKey 505-DC2464A-A-ND 0 $147.12 $147.12 $147.12 $147.12 $147.12 $147.12 Buy
Analog Devices Inc DC2464A-A $147.12 $147.12 $147.12 $147.12 $147.12 $147.12 Buy
element14 APAC DC2464A-A 5 1 * $162.02 * $162.02 * $162.02 * $162.02 * $162.02 * $162.02 Buy
Farnell DC2464A-A 5 1 * $158.16 * $158.16 * $158.16 * $158.16 * $158.16 * $158.16 Buy
Newark DC2464A-A 5 1 $153.00 $153.00 $153.00 $153.00 $153.00 $153.00 Buy