Analog Devices Inc. LTC1550LCMS8#TRPBF
| 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 | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Up/Step-Down |
| Output Configuration | Negative |
| Topology | Charge Pump |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | -1.225V |
| Voltage - Output (Max) | -4.8V |
| 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#TRPBF from Analog Devices is a precision charge pump DC-DC converter designed to generate negative voltages from a 2.7V to 5.5V input. It delivers up to 20mA with a 900kHz switching frequency, enabling compact filter components and low output ripple. The output is adjustable from -1.225V to -4.8V, making it ideal for biasing LCDs, APDs, and precision analog circuits in battery-powered and space-constrained applications. Housed in an 8-MSOP package, it offers a minimal footprint solution.
- High-Frequency Operation: 900kHz switching allows the use of small ceramic capacitors, reducing board space and cost.
- Precise Negative Output: Adjustable from -1.225V to -4.8V provides flexibility for various bias requirements.
- Low Power Consumption: 20mA output is ideal for low-power portable and wearable devices.
- Compact Package: The 8-MSOP package is highly space-efficient for dense PCB layouts.
Battery-Powered Portable Devices
Generate a negative bias rail for LCD displays or audio amplifiers in smartphones and tablets, where the 2.7V to 5.5V input matches Li-Ion battery voltages and the 900kHz frequency allows tiny external capacitors.
Precision Analog Circuits
Provide a stable negative supply for op-amps, ADCs, or DACs in portable instrumentation, ensuring low noise and accurate performance with the regulated output.
Optical Transceivers
Create a negative bias voltage for avalanche photodiodes (APDs) in fiber-optic receivers, where the adjustable output range (-1.225V to -4.8V) suits various APD requirements.
Wearable Health Monitors
Supply a negative rail for biosignal conditioning circuits in wearable devices, leveraging the compact MSOP-8 package and low 20mA current for power-sensitive designs.
Industrial Sensors
Generate a negative reference for pressure or temperature sensors in industrial IoT nodes, where the high switching frequency reduces solution footprint.
Automotive Telematics
Derive a negative supply for CAN transceivers or sensor interfaces in automotive modules, operating from regulated 3.3V or 5V rails.
- Q: What type of converter is the LTC1550LCMS8#TRPBF?
- A: It is a charge pump DC-DC converter specifically designed for generating negative voltages.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V.
- Q: What output voltage can it generate?
- A: It generates a negative output voltage from -1.225V to -4.8V.
- 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 comes in an 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) package.
LTC1550LCMS8#TRPBF.pdf
- Q: What type of converter is the LTC1550LCMS8#TRPBF?
- A: It is a charge pump DC-DC converter specifically designed for generating negative voltages.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V.
- Q: What output voltage can it generate?
- A: It generates a negative output voltage from -1.225V to -4.8V.
- 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 comes in an 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) package.
