Analog Devices Inc. LTC1550LCMS8-2#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.72 | $7.72 |
| 15+ | $7.48 | $112.20 |
| 25+ | $7.32 | $183.00 |
| 50+ | $6.91 | $345.50 |
| 100+ | $6.10 | $610.00 |
| N+ | $1.22 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tube | |
| Function | Step-Up/Step-Down |
| Output Configuration | Negative |
| Topology | Charge Pump |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | -2V |
| Voltage - Output (Max) | - |
| Current - Output | 20mA |
| Frequency - Switching | 900kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-MSOP |
| ROHS |  |
The LTC1550LCMS8-2 is a charge pump DC-DC converter from Analog Devices, designed to produce a regulated -2V output from a 2.7V to 5.5V input. It delivers up to 20mA with a 900kHz switching frequency, allowing for small external capacitors. The 8-MSOP package makes it an excellent choice for generating negative rails in compact, battery-powered systems.
- Negative Output Generation: Simplifies the creation of a -2V rail without inductive components, reducing EMI.
- High Switching Frequency: 900kHz enables the use of small ceramic capacitors, saving board space.
- Wide Input Range: Accepts 2.7V to 5.5V, compatible with common logic and battery voltages.
- Low Profile Package: The 8-MSOP package is ideal for thin, portable devices.
Negative Rail Generation for Op-Amps
Generates a -2V supply from a positive 2.7V-5.5V input, enabling dual-supply operation for precision operational amplifiers in portable test equipment.
Bias Supplies for LCD Displays
Provides a negative bias voltage for LCD contrast adjustment in small handheld displays, ensuring consistent visual performance.
GaAs FET Biasing
The -2V output is suitable for biasing Gallium Arsenide field-effect transistors in RF amplifiers, where a stable negative gate voltage is required.
Sensor Excitation
Used in bridge sensor circuits that require a negative reference voltage for accurate differential measurements.
Audio Circuits
Supplies a negative rail for audio op-amps in portable players, improving signal swing and reducing distortion.
- Q: What type of converter is the LTC1550LCMS8-2?
- A: It is a charge pump DC-DC converter that generates a negative -2V output.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 20mA.
- Q: What is the switching frequency?
- A: The switching frequency is 900kHz.
- Q: What package is available?
- A: It is available in an 8-TSSOP or 8-MSOP package (0.118", 3.00mm Width).
LTC1550LCMS8-2#PBF.pdf
- Q: What type of converter is the LTC1550LCMS8-2?
- A: It is a charge pump DC-DC converter that generates a negative -2V output.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 20mA.
- Q: What is the switching frequency?
- A: The switching frequency is 900kHz.
- Q: What package is available?
- A: It is available in an 8-TSSOP or 8-MSOP package (0.118", 3.00mm Width).
