Analog Devices Inc. LTC1550LCS8-2#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $14.32 | $14.32 |
| 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) | 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-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |  |
The LTC1550LCS8-2 from Linear Technology is a charge pump inverter that produces a fixed -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-SOIC package makes it suitable for compact, low-power analog applications.
- Simple Negative Rail: Generates -2V without inductors, reducing EMI and component count.
- Wide Input Range: Accepts 2.7V to 5.5V, compatible with 3.3V and 5V systems.
- High Frequency: 900kHz operation enables small ceramic capacitors.
- Low Output Current: Ideal for low-power analog biasing (20mA max).
Negative Rail Generation for Op-Amps
Generates a -2V rail from a positive 2.7V-5.5V supply, enabling dual-supply operation for precision analog circuits in portable instruments.
Bias Supply for LCD Displays
Provides a negative bias voltage for small LCD panels in handheld devices, ensuring proper contrast and viewing angles.
Sensor Biasing
Supplies a negative bias for photodiodes or MEMS sensors, improving sensitivity and dynamic range in measurement systems.
Audio Equipment
Creates a negative supply for audio amplifiers or codecs, eliminating the need for a separate negative battery or transformer.
Data Acquisition Systems
Powers analog-to-digital converters (ADCs) that require a negative reference or supply for bipolar input ranges.
- Q: What type of converter is the LTC1550LCS8-2?
- A: It is a Charge Pump (inverting) DC-DC converter.
- 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-SOIC package.
LTC1550LCS8-2#PBF.pdf
- Q: What type of converter is the LTC1550LCS8-2?
- A: It is a Charge Pump (inverting) DC-DC converter.
- 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-SOIC package.
