Analog Devices Inc. LTC1550LCMS8-2#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $13.85 | $13.85 |
| 15+ | $3.18 | $47.70 |
| 25+ | $3.11 | $77.75 |
| 50+ | $2.94 | $147.00 |
| 100+ | $2.60 | $260.00 |
| N+ | $0.52 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| 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 LTC1550L-2 is a charge pump DC-DC converter from Analog Devices, providing a fixed -2V output from a positive 2.7V to 5.5V input. It supports up to 20mA of output current with a 900kHz switching frequency, enabling the use of small external capacitors. The device comes in a compact 8-MSOP/TSSOP package, ideal for space-constrained designs. This converter is well-suited for generating negative bias rails in portable instruments, RF circuits, and precision analog applications where a stable -2V supply is needed.
- Fixed -2V Output: Provides a precise negative rail without external feedback components.
- Wide Input Range (2.7V-5.5V): Compatible with 3.3V, 5V, and single-cell battery supplies.
- 900kHz Switching: Reduces capacitor size and board space requirements.
- Low Power Operation: 20mA output is optimized for low-current analog bias applications, minimizing power loss.
Negative Supply for Portable Electronics
The LTC1550L-2 generates a fixed -2V rail from a 2.7V-5.5V input, suitable for powering low-voltage analog circuits in battery-operated devices.
Biasing for RF Amplifiers
In RF front-ends, the -2V output can be used for biasing GaAs FET amplifiers, providing a stable negative gate voltage from a single positive supply.
Data Converter Reference
For high-resolution ADCs requiring a negative analog supply, this charge pump delivers a clean -2V rail, improving signal-to-noise ratio in mixed-signal systems.
Sensor Conditioning Circuits
In industrial sensor interfaces, the LTC1550L-2 provides the negative supply needed for precision instrumentation amplifiers, operating from a 3.3V logic rail.
Compact Medical Wearables
With its small MSOP package and low 20mA output, this converter is ideal for wearable health monitors that need a negative bias for biosignal amplifiers.
- Q: What type of converter is the LTC1550L-2?
- A: It is a Charge Pump DC-DC converter (inverting).
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 5.5V.
- Q: What is the output voltage?
- A: The output voltage is fixed at -2V.
- 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 (3.00mm width).
LTC1550LCMS8-2#TRPBF.pdf
- Q: What type of converter is the LTC1550L-2?
- A: It is a Charge Pump DC-DC converter (inverting).
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 5.5V.
- Q: What is the output voltage?
- A: The output voltage is fixed at -2V.
- 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 (3.00mm width).
