Linear Technology LTC3440EDD
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $15.60 | $15.60 |
| 15+ | $3.59 | $53.85 |
| 25+ | $3.51 | $87.75 |
| 50+ | $3.32 | $166.00 |
| 100+ | $2.93 | $293.00 |
| N+ | $0.59 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| 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-WFDFN Exposed Pad |
| Supplier Device Package | 10-DFN (3x3) |
The LTC3440EDD is a Buck-Boost DC-DC converter from Linear Technology that regulates an output between 2.5V and 5.5V from an input of 2.5V to 5.5V. It delivers up to 600mA and features an adjustable switching frequency from 300kHz to 2MHz. Packaged in a 10-WFDFN with exposed pad, it is ideal for battery-powered devices where the input voltage can be above or below the output.
- Buck-Boost Flexibility: Maintains regulation when input is above or below the output, ideal for batteries.
- Adjustable Frequency: 300kHz to 2MHz allows trade-off between efficiency and component size.
- High Efficiency: Optimized for battery-powered applications, extending runtime.
- Compact Package: 10-WFDFN with exposed pad aids thermal dissipation in small designs.
Battery-Powered Devices with Wide Voltage Range
Maintain a regulated output from a Li-ion battery (3.0V-4.2V) or two alkaline cells (2.5V-3.0V). The buck-boost topology ensures the output stays stable whether the input is above or below the output.
Portable Audio Players
Power audio codecs and amplifiers from a single Li-ion cell. The adjustable frequency (300kHz-2MHz) allows optimization for efficiency or noise.
Handheld GPS Units
Provide a stable 3.3V rail from a battery that discharges from 4.2V down to 2.5V. The 600mA current handles GPS modules and displays.
USB-Powered Peripherals
Generate a 5V output from a 3.3V or 3.0V supply in USB devices. The buck-boost function allows seamless operation across the input range.
Portable Medical Devices
Power insulin pumps or hearing aids from a single cell. The small 10-WFDFN package and high efficiency extend battery life.
- Q: What type of converter is the LTC3440EDD?
- A: It is a Buck-Boost DC-DC converter that can step up or step 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 output voltage range?
- A: The output voltage is adjustable 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 adjustable from 300kHz to 2MHz.
- Q: What package is available?
- A: It comes in a 10-WFDFN package with an exposed pad.
LTC3440EDD.pdf
- Q: What type of converter is the LTC3440EDD?
- A: It is a Buck-Boost DC-DC converter that can step up or step 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 output voltage range?
- A: The output voltage is adjustable 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 adjustable from 300kHz to 2MHz.
- Q: What package is available?
- A: It comes in a 10-WFDFN package with an exposed pad.
