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LTC3226EUD#PBF - 

IC, 2CELL SUPERCAP CHARGE, 16QFN

LINEAR TECHNOLOGY LTC3226EUD#PBF

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LTC3226EUD#PBF
Order Code:
2033980
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC3226EUD#PBF is a 2-cell Supercapacitor Charger with backup PowerPath™ controller. It includes a charge pump supercapacitor charger with programmable output voltage, a low dropout regulator and a power-fail comparator for switching between normal and backup modes. The constant input current supercapacitor charger is designed to charge two supercapacitors in series to a resistor-programmable output voltage from a 2.5 to 5.3V input supply. The charger input current limit is programmable by an external resistor at up to 315mA. The internal backup LDO is powered from the supercapacitors and provides up to 2A peak output current with an adjustable output voltage. When the input supply falls below the power-fail threshold, the LTC3226 automatically enters a backup state in which the supercapacitors power the output through the LDO. The input supply power-fail voltage level is programmed by an external resistor divider.
  • 1x/2x Multimode charge pump supercapacitor charger
  • Automatic cell balancing
  • Ideal diode main PowerPath™ controller (VIN to VOUT)
  • Internal 2A LDO backup supply (CPO to VOUT)
  • Automatic main/backup switchover
  • 2.5 to 5.5V Input voltage range
  • Programmable SCAP charge voltage
  • Programmable input current limit (315mA maximum)
  • No load IVIN = 55µA (typical)

Applications

Power Management, Industrial, Medical, Signal Processing

Product Information

:
5.5V
:
-
:
1
:
1
:
QFN
:
16Pins
:
-40°C
:
125°C
:
Each
:
-
:
-
:
-
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