Analog Devices Inc. LTC1682CS8-5#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.40 | $12.40 |
| 15+ | $2.85 | $42.75 |
| 25+ | $2.79 | $69.75 |
| 50+ | $2.64 | $132.00 |
| 100+ | $2.33 | $233.00 |
| N+ | $0.47 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Up |
| Output Configuration | Positive |
| Topology | Charge Pump |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.8V |
| Voltage - Input (Max) | 4.4V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Current - Output | 50mA |
| Frequency - Switching | 550kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |  |
The LTC1682CS8-5 from Analog Devices is a low-noise charge pump DC-DC converter that delivers a fixed 5V output from a 1.8V to 4.4V input. Capable of supplying up to 50mA, it operates at a 550kHz switching frequency, allowing the use of tiny external capacitors. This makes it ideal for space-constrained, battery-powered applications requiring a stable 5V rail, such as portable instruments, sensor bias supplies, and small handheld devices.
- Stable 5V Output: Fixed 5V regulation from a wide 1.8V-4.4V input range, ensuring consistent performance as batteries discharge.
- Compact Solution: 550kHz switching frequency enables the use of small ceramic capacitors, reducing PCB footprint in space-limited designs.
- Low Noise Operation: Charge pump architecture minimizes electromagnetic interference, making it suitable for sensitive analog and RF circuits.
- Simple Design: Requires only a few external components, simplifying the BOM and speeding up time-to-market.
Battery-Powered Portable Devices
The LTC1682CS8-5 efficiently boosts a 2-cell alkaline or single Li-ion battery (1.8V-4.4V) to a stable 5V rail for sensors, displays, or small peripherals. Its 550kHz switching frequency allows the use of small external capacitors, minimizing board space in compact designs.
5V Logic Supply from Low-Voltage Rails
In mixed-voltage systems where only 3.3V or lower is available, this charge pump provides a regulated 5V supply for legacy logic ICs, EEPROM programming, or USB VBUS generation at up to 50mA.
Sensor Bias and Reference Supplies
Precision analog circuits often require a clean 5V bias. The LTC1682CS8-5's low-noise charge pump architecture delivers a stable output, reducing interference in sensitive measurement paths.
Handheld Medical and Wellness Devices
For glucose monitors, thermometers, or pulse oximeters running from small batteries, this converter maintains a consistent 5V output as the battery discharges, ensuring reliable operation over the full battery life.
Industrial Remote Transmitters
In 2-wire industrial sensors or wireless transmitters powered by 3V coin cells, the LTC1682CS8-5 provides the necessary 5V boost for the RF stage or signal conditioning circuitry, with high efficiency extending battery life.
Portable Audio Accessories
Headphone amplifiers or MEMS microphones often need a higher voltage rail. This charge pump generates 5V from a 3.7V Li-Po battery, enabling higher audio output levels without distortion.
- Q: What type of converter is the LTC1682CS8-5?
- A: It is a charge pump DC-DC converter that produces a regulated 5V output from a 1.8V to 4.4V input.
- Q: What is the input voltage range?
- A: The input voltage range is 1.8V to 4.4V.
- Q: What is the maximum output current?
- A: The maximum output current is 50mA.
- Q: What is the switching frequency?
- A: The switching frequency is 550kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
- Q: Is the output voltage fixed?
- A: Yes, this version has a fixed 5V output.
LTC1682CS8-5#TRPBF.pdf
- Q: What type of converter is the LTC1682CS8-5?
- A: It is a charge pump DC-DC converter that produces a regulated 5V output from a 1.8V to 4.4V input.
- Q: What is the input voltage range?
- A: The input voltage range is 1.8V to 4.4V.
- Q: What is the maximum output current?
- A: The maximum output current is 50mA.
- Q: What is the switching frequency?
- A: The switching frequency is 550kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
- Q: Is the output voltage fixed?
- A: Yes, this version has a fixed 5V output.
