Analog Devices Inc. LTC1550LCS8-4.1#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.12 | $7.12 |
| 15+ | $6.89 | $103.35 |
| 25+ | $6.74 | $168.50 |
| 50+ | $6.37 | $318.50 |
| 100+ | $5.62 | $562.00 |
| N+ | $1.12 | 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) | 4.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | -4.1V |
| 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-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |  |
The LTC1550LCS8-4.1#PBF is a charge pump DC-DC converter from Analog Devices, designed to generate a fixed -4.1V output from a 4.5V to 5.5V input. It delivers up to 20mA, making it ideal for low-power negative rail applications. Operating at 900kHz, it requires only small external capacitors, saving board space. The 8-SOIC package ensures easy integration into existing designs. This converter is perfect for precision analog circuits, data acquisition, and portable instrumentation.
- Fixed -4.1V Output: Simplifies design with no external feedback resistors.
- Charge Pump Topology: No inductors required, reducing EMI and component count.
- 900kHz Operation: Allows small ceramic capacitors for compact layouts.
- Low Output Current (20mA): Ideal for sensitive analog loads without excess power dissipation.
- Standard 8-SOIC: Easy to manufacture and widely available.
Negative Rail Generation
The LTC1550LCS8-4.1#PBF generates a precise -4.1V rail from a 5V supply, ideal for biasing op-amps, DACs, and analog switches in mixed-signal systems.
Battery-Powered Instruments
Its low 20mA output is sufficient for LCD bias or sensor supplies in portable meters, with 900kHz operation enabling small ceramic capacitors.
Data Acquisition Systems
Provides a clean negative supply for high-resolution ADCs, improving dynamic range in precision measurement equipment.
Telecom Line Drivers
Creates a negative voltage for line drivers and level shifters in telecom interfaces, ensuring proper signal swing.
Audio Equipment
Supplies negative rail for audio op-amps, eliminating the need for a transformer or additional regulator.
Industrial Control
Used in PLCs and process controllers to power analog front-ends requiring bipolar supplies.
- Q: What type of converter is the LTC1550LCS8-4.1#PBF?
- A: It is a charge pump DC-DC converter (inverting).
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 5.5V.
- Q: What is the output voltage?
- A: The output is fixed at -4.1V.
- Q: What is the maximum output current?
- A: The maximum output current is 20mA.
- Q: What is the switching frequency?
- A: It operates at 900kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC package.
LTC1550LCS8-4.1#PBF.pdf
- Q: What type of converter is the LTC1550LCS8-4.1#PBF?
- A: It is a charge pump DC-DC converter (inverting).
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 5.5V.
- Q: What is the output voltage?
- A: The output is fixed at -4.1V.
- Q: What is the maximum output current?
- A: The maximum output current is 20mA.
- Q: What is the switching frequency?
- A: It operates at 900kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC package.
