Analog Devices Inc. LTC1682IS8#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $16.88 | $16.88 |
| 15+ | $7.77 | $116.55 |
| 25+ | $7.61 | $190.25 |
| 50+ | $7.18 | $359.00 |
| 100+ | $6.34 | $634.00 |
| N+ | $1.27 | 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 | Positive |
| Topology | Charge Pump |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.8V |
| Voltage - Input (Max) | 4.4V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 50mA |
| Frequency - Switching | 550kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |  |
The LTC1682IS8#PBF is an adjustable output charge pump DC-DC converter from Linear Technology. It accepts an input voltage from 1.8V to 4.4V and provides a regulated output adjustable from 2.5V to 5.5V via external resistors. The device delivers up to 50mA of output current and operates at a fixed 550kHz switching frequency. Packaged in an 8-SOIC package, this converter offers a compact, inductor-free solution for generating higher voltages from low-voltage batteries, suitable for bias supplies, sensor excitation, and memory programming applications.
- Adjustable Output (2.5V-5.5V): Provides design flexibility to generate various voltage rails from a single converter.
- Wide Input Range (1.8V-4.4V): Operates from a single alkaline cell or Li-Ion battery throughout its discharge cycle.
- 550kHz Fixed Frequency: Enables small external capacitors and predictable filtering for low-noise applications.
- 50mA Output Current: Adequate for biasing, programming, and low-power auxiliary circuits.
- Inductor-Free Design: Reduces EMI and simplifies PCB layout, saving cost and board space.
Adjustable Bias Supplies
Provides a programmable 2.5V to 5.5V bias rail for MEMS microphones, LCD bias, or varactor diodes in tunable RF filters, using just two external resistors.
Portable GPS Receivers
Generates a 3.0V or 3.3V supply for GPS modules from a 2V battery, maintaining lock with low noise and stable voltage.
Battery-Powered Audio Amplifiers
Boosts a 1.8V-3V battery to a 5V rail for small Class-D amplifiers, increasing output power for portable speakers.
EEPROM Programming
Supplies a higher voltage (up to 5.5V) for programming EEPROMs or flash memory in field-upgradeable devices, eliminating the need for a separate boost converter.
Sensor Excitation
Provides a stable 5V excitation voltage for bridge-type pressure sensors, improving measurement accuracy in battery-operated data loggers.
Multi-Voltage Portable Systems
Allows a single design to generate different voltages (2.5V, 3.3V, 5V) by changing resistor values, reducing inventory for multiple product variants.
- Q: What type of converter is the LTC1682IS8#PBF?
- A: It is a charge pump DC-DC converter with an adjustable output.
- Q: What is the input voltage range?
- A: The input voltage range is 1.8V to 4.4V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 2.5V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 50mA.
- Q: What is the switching frequency?
- A: The switching frequency is 550kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC package (0.154", 3.90mm width).
LTC1682IS8#PBF.pdf
- Q: What type of converter is the LTC1682IS8#PBF?
- A: It is a charge pump DC-DC converter with an adjustable output.
- Q: What is the input voltage range?
- A: The input voltage range is 1.8V to 4.4V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 2.5V to 5.5V.
- Q: What is the maximum output current?
- A: The maximum output current is 50mA.
- Q: What is the switching frequency?
- A: The switching frequency is 550kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC package (0.154", 3.90mm width).
