LTC3643IUDD#PBF Supercapacitor Chargers by Analog Devices

Status: Production
Series: LTC3643
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator to power the system rail from the backup capacitor during this power interuption/failure condition.When charging the backup capacitor, an external low-value sense resistor may be used to maintain an accurate current limit from the input supply or implement PowerPathâ„¢ functionality.The step-down converter operates at a 1MHz switching frequency, allowing small external components to be used. Low quiescent current during regulation maximizes the energy usage from the backup capacitor.

Where to Buy

Prices starting from US$6.85

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$6.85
655
in stock
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Logo for Newark
Newark Electronics
from US$9.98
38
in stock
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Logo for element14 Singapore
element14
from US$10.53
38
in stock
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Farnell
from US$8.48
38
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$9.08
0
in stock
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Last 6 months Inventory & Pricing History


Alternative Descriptions

2A Bi-dir Pwr Backup S | Analog Devices
Capacitor Charger/Regulator, Qfn-Ep-24 | Newark Electronics
CAPACITOR CHARGER/REGULATOR, QFN-EP-24 | element14
Conv DC-DC 3V to 17V Synchronous Step Up Single-Out 40V 2A Automotive 24-Pin QFN EP Tube | Richardson RFPD


LTC3643IUDD#PBF Special Function by Linear Technology

SUPERCAPACITOR CHARGER BI-DIR QFN-24

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Supercapacitor Charger
Supply Voltage Min 3V
Supply Voltage Max 17V
IC Package Type QFN
No. of Pins 24Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3643IUDD#PBF?

Additional datasheets, footprints and schematics for LTC3643IUDD#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3643IUDD#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3643IUDD#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3643IUDD#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3643IUDD#PBF fall under?

The LTC3643IUDD#PBF is listed under Supercapacitor Chargers.

Can I view similar or alternative parts?

You can view similar parts to LTC3643IUDD#PBF when available in the Supercapacitor Chargers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LTC3643IUDD#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3643IUDD#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC3643IUDD#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for LTC3643IUDD#PBF.

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