Linear Technology LTC1550IGN#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $22.84 | $22.84 |
| 15+ | $5.25 | $78.75 |
| 25+ | $5.14 | $128.50 |
| 50+ | $4.85 | $242.50 |
| 100+ | $4.28 | $428.00 |
| N+ | $0.86 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| Function | Step-Up/Step-Down |
| Output Configuration | Negative |
| Topology | Charge Pump |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 6.5V |
| Voltage - Output (Min/Fixed) | -1.24V |
| Voltage - Output (Max) | -6.1V |
| Current - Output | 10mA |
| Frequency - Switching | 900kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SSOP |
| ROHS |  |
The LTC1550IGN#PBF from Linear Technology is a precision charge pump inverter designed to generate a regulated negative output voltage. Operating from a 4.5V to 6.5V input, it delivers up to 10mA with an adjustable output from -1.24V to -6.1V. Its fixed 900kHz switching frequency allows for small external capacitors, making it ideal for space-constrained applications requiring a clean negative rail for op-amps, LCD bias, or sensor circuits.
- Precise Negative Output: Generates a well-regulated negative voltage, essential for analog circuits.
- High Switching Frequency (900kHz): Enables the use of tiny, low-profile ceramic capacitors.
- Low Output Current (10mA): Optimized for low-power analog and biasing applications.
- Adjustable Output: Allows fine-tuning of the negative rail via external resistors.
- Compact SSOP Package: Saves valuable PCB area in portable designs.
Negative Rail Generation for Op-Amps
Create a precise negative supply (e.g., -5V) from a positive 5V rail for dual-supply operational amplifiers in audio, instrumentation, or active filter circuits.
Biasing GaAs FET Amplifiers
Provide a stable negative gate bias voltage for Gallium Arsenide (GaAs) field-effect transistors (FETs) in RF amplifiers, ensuring proper operating point and linearity.
LCD Contrast Control
Generate a negative voltage for adjusting the contrast of character or graphic LCD displays in embedded systems, improving readability in varying lighting conditions.
Sensor Excitation
Supply a negative reference voltage for bridge-type sensors (e.g., strain gauges, pressure sensors) to enable ratiometric measurements with a bipolar signal range.
Portable Medical Devices
Power a negative rail for precision analog front-ends in portable ECG or glucose monitors, where a small, efficient charge pump is essential for battery life.
Data Acquisition Systems
Generate a negative supply for analog multiplexers, sample-and-hold circuits, or ADCs that require a bipolar input range for accurate signal processing.
- Q: What type of converter is the LTC1550IGN#PBF?
- A: It is a charge pump DC-DC converter specifically designed to generate a negative output voltage.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 6.5V.
- Q: What is the output voltage range?
- A: It produces a negative output from -1.24V down to -6.1V, set by external resistors.
- Q: What is the maximum output current?
- A: The maximum output current is 10mA.
- Q: What is the switching frequency?
- A: It operates at a fixed 900kHz switching frequency.
- Q: What package is it available in?
- A: It comes in a 16-SSOP (0.154", 3.90mm Width) package.
LTC1550IGN#PBF.pdf
- Q: What type of converter is the LTC1550IGN#PBF?
- A: It is a charge pump DC-DC converter specifically designed to generate a negative output voltage.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 6.5V.
- Q: What is the output voltage range?
- A: It produces a negative output from -1.24V down to -6.1V, set by external resistors.
- Q: What is the maximum output current?
- A: The maximum output current is 10mA.
- Q: What is the switching frequency?
- A: It operates at a fixed 900kHz switching frequency.
- Q: What package is it available in?
- A: It comes in a 16-SSOP (0.154", 3.90mm Width) package.
