Analog Devices Inc. LTC3440EMS#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.79 | $8.79 |
| 15+ | $8.51 | $127.65 |
| 25+ | $8.33 | $208.25 |
| 50+ | $7.86 | $393.00 |
| 100+ | $6.94 | $694.00 |
| N+ | $1.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 600mA |
| Frequency - Switching | 300kHz ~ 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-MSOP |
| ROHS |  |
The LTC3440 is a synchronous Buck-Boost DC-DC converter from Analog Devices. It operates from an input voltage of 2.5V to 5.5V and provides a regulated output from 2.5V to 5.5V, delivering up to 600mA. Its unique topology allows the output to remain regulated when the input voltage is above, below, or equal to the output. The switching frequency is programmable from 300kHz to 2MHz. It is available in a 10-lead MSOP package.
- Buck-Boost Functionality: Maintains a regulated output when input voltage is above, below, or equal to the output, ideal for battery-powered devices.
- Extended Battery Life: Utilizes the full battery voltage range, extracting more energy from single-cell Li-Ion or multi-cell alkaline batteries.
- Programmable Frequency: Switching frequency adjustable from 300kHz to 2MHz, allowing optimization for efficiency or component size.
- Compact Package: Available in a small 10-lead MSOP package, saving valuable PCB space in portable designs.
Single-Cell Li-Ion Battery-Powered Devices
For devices powered by a single Li-Ion cell (3.0V-4.2V), the LTC3440 maintains a regulated 3.3V output whether the battery is fully charged (above 3.3V, buck mode) or nearly depleted (below 3.3V, boost mode), maximizing usable battery capacity.
Portable Instruments with Wide Input Range
In handheld meters or data loggers using 2-3 alkaline cells (2.5V-4.5V), this buck-boost converter provides a stable 3.3V or 5V rail, ensuring consistent operation regardless of battery state-of-charge.
USB-Powered Peripherals
When powered from a USB port (4.5V-5.5V), the LTC3440 can buck down to 3.3V for logic circuits or boost up to 5V for other loads, providing flexibility in USB-powered accessory designs.
Wireless Sensors and IoT Nodes
For battery-powered wireless sensors that need to operate over a wide voltage range, this converter ensures a stable supply for microcontrollers and RF transceivers, improving reliability and extending battery life.
Portable Audio and Multimedia Devices
In portable audio players or cameras, the LTC3440 provides a clean, regulated supply for audio codecs, displays, and memory, with a programmable frequency to avoid interference with sensitive analog circuits.
- Q: What type of converter is the LTC3440EMS#TRPBF?
- A: It is a synchronous Buck-Boost DC-DC converter, capable of stepping up or stepping down the input voltage.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 600mA.
- Q: What is the switching frequency?
- A: The switching frequency is programmable from 300kHz to 2MHz.
- Q: What package is available?
- A: It comes in a 10-lead MSOP (also known as 10-TFSOP) package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 2.5V up to 5.5V.
LTC3440EMS#TRPBF.pdf
- Q: What type of converter is the LTC3440EMS#TRPBF?
- A: It is a synchronous Buck-Boost DC-DC converter, capable of stepping up or stepping down the input voltage.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 600mA.
- Q: What is the switching frequency?
- A: The switching frequency is programmable from 300kHz to 2MHz.
- Q: What package is available?
- A: It comes in a 10-lead MSOP (also known as 10-TFSOP) package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 2.5V up to 5.5V.
