Analog Devices Inc. LTC3548AEMSE#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $14.25 | $14.25 |
| 15+ | $3.28 | $49.20 |
| 25+ | $3.20 | $80.00 |
| 50+ | $3.03 | $151.50 |
| 100+ | $2.67 | $267.00 |
| N+ | $0.53 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Buck-Boost |
| Output Type | Adjustable |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 5V |
| Current - Output | 400mA, 800mA |
| Frequency - Switching | 2.25MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad |
| Supplier Device Package | 10-MSOP-EP |
| ROHS |  |
The LTC3548AEMSE is a dual-channel, high-efficiency DC-DC converter from Analog Devices, combining a synchronous Buck and a synchronous Buck-Boost converter in a compact 10-MSOP package. It operates from a 2.5V to 5.5V input, ideal for battery-powered applications. The Buck channel provides up to 400mA, while the Buck-Boost channel provides up to 800mA, with outputs adjustable from 0.6V to 5V. Both channels switch at a fixed 2.25MHz frequency, enabling the use of small, low-profile inductors and capacitors. This device is perfect for space-constrained portable electronics requiring multiple voltage rails, such as wearables, IoT sensors, and handheld instruments.
- Dual Outputs in Small Package: Integrates Buck and Buck-Boost converters in a 10-MSOP, saving significant board space compared to discrete solutions.
- Optimized for Low Power: With 400mA and 800mA outputs, it is perfectly sized for battery-powered IoT and wearable applications.
- Stable Output Over Battery Life: The Buck-Boost channel maintains a regulated output even when the battery voltage falls below the set output voltage.
- Low Noise Operation: The 2.25MHz constant-frequency operation ensures predictable EMI and low output ripple, suitable for RF and analog circuits.
Compact Wearable Devices
For smartwatches and fitness trackers, the LTC3548AEMSE provides two regulated rails from a small Li-Po battery. The Buck channel powers the low-power MCU at 1.2V, while the Buck-Boost channel maintains a 3.3V rail for the display and sensors, all in a tiny MSOP package.
Portable GPS Receivers
In handheld GPS units, this dual converter can generate a 1.8V rail for the digital processor and a 3.0V rail for the GPS RF front-end, ensuring clean, stable power for sensitive navigation circuitry.
Battery-Powered IoT Sensors
For wireless sensor nodes, the LTC3548AEMSE can step down a 3.6V battery to 1.8V for the microcontroller and boost to 3.3V for the radio transceiver, optimizing power consumption for extended battery life.
Portable Medical Devices
In compact glucose meters or blood pressure monitors, this converter provides separate rails for the analog sensor interface (3.3V) and the digital display/processor (1.8V), reducing noise coupling and improving measurement accuracy.
Handheld Barcode Scanners
The dual outputs can power a 3.3V logic rail and a 5V laser driver rail from a single battery, simplifying the power architecture and reducing the number of required ICs.
Digital Cameras
In point-and-shoot cameras, the Buck channel can power the image sensor core at 1.2V, while the Buck-Boost channel provides a stable 3.3V for the motor drivers and LCD, ensuring reliable operation across the battery discharge curve.
- Q: What type of converter is the LTC3548AEMSE?
- A: It is a dual-channel DC-DC converter with one Buck and one Buck-Boost channel.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 5.5V.
- Q: What are the output voltage ranges?
- A: The Buck output is adjustable from 0.6V, and the Buck-Boost output is adjustable up to 5V.
- Q: What are the maximum output currents?
- A: The Buck channel can deliver 400mA, and the Buck-Boost channel can deliver 800mA.
- Q: What is the switching frequency?
- A: Both channels operate at a fixed 2.25MHz frequency.
- Q: What package is available?
- A: It is available in a 10-TFSOP or 10-MSOP exposed pad package.
LTC3548AEMSE#TRPBF.pdf
- Q: What type of converter is the LTC3548AEMSE?
- A: It is a dual-channel DC-DC converter with one Buck and one Buck-Boost channel.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 5.5V.
- Q: What are the output voltage ranges?
- A: The Buck output is adjustable from 0.6V, and the Buck-Boost output is adjustable up to 5V.
- Q: What are the maximum output currents?
- A: The Buck channel can deliver 400mA, and the Buck-Boost channel can deliver 800mA.
- Q: What is the switching frequency?
- A: Both channels operate at a fixed 2.25MHz frequency.
- Q: What package is available?
- A: It is available in a 10-TFSOP or 10-MSOP exposed pad package.
