Datasheet for LTC3440:
- Manufacturer Part Number : LTC3440
- Manufacturer : AD
- Description : Micropower Synchronous Buck-Boost DC/DC Converter
- Series : LTC3440
- Reference Price : USD 2.272
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Buck-Boost Regulators
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC3440
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LTC3440. If you need any more information about LTC3440, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC3440 is a high efficiency, fixed frequency, Buck-Boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.
The device includes two 0.19Ω N-channel MOSFET switches and two 0.22Ω P-channel switches. Switching frequencies up to 2MHz are programmed with an external resistor and the oscillator can be synchronized to an external clock. Quiescent current is only 25µA in Burst Mode operation, maximizing battery life in portable applications. Burst Mode operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin has either a clock or is driven low, then fixed frequency switching is enabled.
Other features include a 1µA shutdown, soft-start control, thermal shutdown and current limit. The LTC3440 is available in the 10-pin thermally enhanced MSOP package.
Protected by U.S. Patents including 6404251, 6166527.
Applications
- Palmtop Computers
- Handheld Instruments
- MP3 Players
- Digital Cameras
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
