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Supercapacitor Charger

Manufacturer : Analog Devices, Inc
Package/Case : DFN
Product Categories : Power Management ; Supercapacitor Chargers
Datasheet: LTC3225EDDB Datasheet (PDF)
RoHs Status: Lead free/RoHS Compliant
Marking Code: LCYR
In-stock: 201


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LTC3225EDDB Product Details

The LTC3225/LTC3225-1 are programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable fixed output voltage (4.8V/5.3V for the LTC3225EDDB and 4V/4.5V for the LTC3225-1) from input supplies as low as 2.8V to 5.5V. Automatic cell balancing prevents overvoltage damage to either supercapacitor. No balancing resistors are required.

Low input noise, low quiescent current and low external parts count (one flying capacitor, one bypass capacitor at VIN and one programming resistor) make the LTC3225/LTC3225-1 ideally suited for small battery-powered applications.

Charge current level is programmed with an external resistor. When the input supply is removed, the LTC3225/LTC3225-1 automatically enter a low current state, drawing less than 1μA from the supercapacitors.

The LTC3225/LTC3225-1 are available in a 10-lead 2mm × 3mm DFN package.



  • Low Noise Constant Frequency Charging of Two Series Supercapacitors
  • Automatic Cell Balancing Prevents Capacitor Overvoltage During Charging
  • Programmable Charge Current (Up to 150mA)
  • Selectable 2.4V or 2.65V Regulation per Cell (LTC3225)
  • Selectable 2V or 2.25V Regulation per Cell (LTC3225-1)
  • Automatic Recharge
  • IVIN = 20μA in Standby Mode
  • ICOUT < 1μA When Input Supply is Removed
  • No Inductors
  • Tiny Application Circuit (2mm × 3mm DFN Package, All Components <1mm High)


  • Current Limited Applications with High Peak Power Loads (LED Flash, PCMCIA Tx Bursts, HDD Bursts, GPRS/GSM Transmitter)
  • Backup Supplies

LTC3225EDDB Pinout
(Picture: Pinout)

LTC3225EDDB Block Diagram
(Picture: Diagram)

Technical Parameters

  • Vinmin | V
  • 3
  • Vinmax | V
  • 5.5
  • Output Currenttyp | A
  • 150m
  • Vout Maximum
  • 4.8V, 5.3V
  • Topology
  • Charge Pump
  • Comments
  • 150mA Supercapacitor Charger, Selectable 2.4V or 2.65V Per Cell
  • Features
  • Automatic Cell Balancing, Programmable Charge Current

LTC3225EDDB Datasheet

  • LTC3225 Technical Documentation/Data sheet

LTC3225EDDB Related Products

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Estimated Delivery Time: Jul 22 - Jul 27 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.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

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.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

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 LTC3225EDDB is the original manufacturer or agent of ADI?
We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LTC3225EDDB devices; we pay more attention to the channels and quality of LTC3225EDDB products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LTC3225EDDB chips? Including ADI original factory information, Power Management ; Supercapacitor Chargers application, LTC3225EDDB 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 ADI's LTC3225EDDB price and stock displayed on the platform accurate?
The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LTC3225EDDB, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
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 LTC3225EDDB?
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 LTC3225EDDB we delivered, we will accept the replacement or return of the LTC3225EDDB 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 LTC3225EDDB.
(3)The LTC3225EDDB 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.
Q: How to contact us and get support, such as LTC3225EDDB datasheet pdf, LTC3225 pin diagram?
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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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