Products > Integrated Circuits (ICs) > Power Management ICs > LTC4041IUFD#PBF

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  • Package/Case :
  • 24-WFQFN
  • Product Categories :
  • IC Chips
  • RoHs Status:
  • Pb-free Halide free
  • In-stock:
  • 2099


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LTC4041IUFD#PBF Product Details

Power by Linear™ / Analog Devices' LTC4041IUFD#PBF is a complete supercapacitor backup system for 2.9 V to 5.5 V supply rails. The device contains a high current step-down DC/DC converter to charge a single supercapacitor or two supercapacitors in series. When input power is unavailable, the step-down regulator operates in reverse as a step-up regulator to back up the system output from the supercapacitor(s).The LTC4041's adjustable input current limit function reduces charge current to protect the input supply from overload while an external disconnect switch isolates the input supply during backup. When the input supply drops below the adjustable PFI threshold, the 2.5 A boost regulator delivers power from the supercapacitor to the system output.An optional input overvoltage protection (OVP) circuit protects the LTC4041IUFD#PBF from high voltage damage at the VIN pin. An internal supercapacitor balancing circuit maintains equal voltages across each supercapacitor and limits the maximum voltage of each supercapacitor to a pre-determined value. The LTC4041IUFD#PBF is ideal for power meters and industrial alarms.<strong>Features:</strong> 2.5 A step-down supercapacitor charger and 2.5 A step-up backup supply, 6.5 A switches for 2.5 A backup from one supercapacitor or two in series, Input current limit prioritizes load over charge current, Input disconnect switch isolates input during backup, Automatic seamless switch-over to backup mode, Programmable charge current and charge voltage, Input power fail indicator, System power good indicator, Optional OVP circuitry protects device to >60 V, Constant frequency operation, Internal supercapacitor balancer (no external resistors), Power meters, Industrial alarms, Ride-through "dying gasp" supplies, High current ride-through 3 V to 5 V UPS, Servers, Solid state drives


  • 2.5A Step-Down Supercapacitor Charger and 2.5A Step-Up Backup Supply
  • 6.5A Switches for 2.5A Backup from One Supercapacitor or Two in Series
  • Input Current Limit Prioritizes Load over Charge Current
  • Input Disconnect Switch Isolates Input During Backup
  • Automatic Seamless Switch-Over to Backup Mode
  • Internal Supercapacitor Balancer (No External Resistors)
  • Programmable Charge Current and Charge Voltage
  • Input Power Fail Indicator
  • System Power Good Indicator
  • Optional OVP Circuitry Protects Device to >60V
  • Constant Frequency Operation
  • Thermally Enhanced 24-Lead 4mm × 5mm QFN Package


  • Ride-Through “Dying Gasp” Supplies
  • High Current Ride-Through 3V to 5V UPS
  • Power Meters/Industrial Alarms
  • Servers/Solid State Drives

Technical Parameters

  • Manufacturer
  • Linear Technology/Analog Devices
  • Series
  • -
  • Packaging
  • Tube&nbsp;
  • Part Status
  • Active
  • Function
  • Power Management
  • Battery Chemistry
  • Multi-Chemistry
  • Number of Cells
  • 1
  • Fault Protection
  • Over Voltage
  • Interface
  • -
  • Operating Temperature
  • -40°C ~ 125°C (TJ)
  • Package / Case
  • 24-WFQFN Exposed Pad
  • Supplier Device Package
  • 24-QFN (5x4)
  • RoHS Status
  • RoHS Compliant
  • Moisture Sensitivity Level (MSL)
  • 1 (Unlimited)
  • Standard Package
  • 73

LTC4041IUFD#PBF Documents

  • LTC4041 Technical Documentation/Data sheet

LTC4041IUFD#PBF Related Products

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Estimated Delivery Time: Jul 11 - Jul 16 days (choose Expedited at checkout).

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    90 days quality guarantee for all products.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

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We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that LTC4041IUFD#PBF is the original manufacturer or agent of AD?
We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their LTC4041IUFD#PBF devices; we pay more attention to the channels and quality of LTC4041IUFD#PBF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LTC4041IUFD#PBF chips? Including AD original factory information, IC Chips application, LTC4041IUFD#PBF pictures?
You can use Jotrin's intelligent search engine, or filter by Power Management ; Supercapacitor Chargers category, or find it through Analog Devices, Inc Information page.
Q: Are the AD's LTC4041IUFD#PBF price and stock displayed on the platform accurate?
The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LTC4041IUFD#PBF, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of LTC4041IUFD#PBF?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LTC4041IUFD#PBF we delivered, we will accept the replacement or return of the LTC4041IUFD#PBF only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LTC4041IUFD#PBF.
(3)The LTC4041IUFD#PBF is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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