Analog Devices Inc. LT1373IS8#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.74 | $12.74 |
| 15+ | $12.34 | $185.10 |
| 25+ | $12.07 | $301.75 |
| 50+ | $11.40 | $570.00 |
| 100+ | $10.06 | $1,006.00 |
| N+ | $2.01 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tube | |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 1.245V |
| Voltage - Output (Max) | 35V (Switch) |
| Current - Output | 1.5A (Switch) |
| Frequency - Switching | 250kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |  |
The LT1373IS8 is a versatile current-mode switching regulator from Analog Devices. It supports buck, boost, Cuk, flyback, forward, and SEPIC topologies, accepting inputs from 2.7V to 30V. The internal 1.5A switch and fixed 250kHz frequency enable compact, efficient designs. Output voltage is adjustable from 1.245V to 35V. Housed in an 8-pin SOIC, it suits battery-powered, industrial, and automotive applications requiring design flexibility.
- Multi-Topology Flexibility: One IC for buck, boost, SEPIC, flyback, etc., reduces part count and design risk.
- Wide Input Range (2.7V-30V): Works from single-cell batteries to 24V industrial rails.
- Fixed 250kHz Switching: Balances efficiency and component size, simplifying EMI filtering.
- 1.5A Internal Switch: Handles moderate power levels without external FETs.
- 8-SOIC Package: Industry-standard footprint for easy layout and thermal performance.
Multi-Topology Prototyping
The LT1373IS8's flexibility to configure as buck, boost, or SEPIC makes it ideal for engineers prototyping multiple power architectures with a single IC, reducing inventory and design time.
Battery-Powered Handheld Devices
With a 2.7V minimum input, it operates from single-cell Li-ion or 2-cell alkaline batteries. The 250kHz frequency allows small inductors, saving board space in portable devices.
Negative Output Voltage Generators
Using the Cuk or flyback topology, the LT1373IS8 can generate negative rails (e.g., -5V) from a positive input, essential for op-amp supplies in analog circuits.
Isolated Power Supplies
In flyback configuration, it provides isolated outputs for industrial sensors or gate drivers, with the 1.5A switch supporting up to several watts of output power.
Automotive Accessory Power
Operating from 12V car batteries (with transients up to 30V), it can step down to 5V or 3.3V for infotainment or telematics modules, or boost to 24V for LED lighting strips.
SEPIC for Wide-Range Inputs
When input voltage can be above or below the output (e.g., 3.3V from a 2.7V-30V source), the SEPIC topology provides a regulated output without complex transformer design.
- Q: What converter topologies does the LT1373IS8 support?
- A: It supports Buck, Boost, Cuk, Flyback, Forward, and SEPIC configurations.
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 30V.
- Q: What is the output voltage range?
- A: The output is adjustable from 1.245V up to 35V (switch voltage limit).
- Q: What is the maximum switch current?
- A: The internal switch can handle up to 1.5A.
- Q: What is the switching frequency?
- A: It operates at a fixed 250kHz.
- Q: What package is available?
- A: It comes in an 8-pin SOIC package.
LT1373IS8#PBF.pdf
- Q: What converter topologies does the LT1373IS8 support?
- A: It supports Buck, Boost, Cuk, Flyback, Forward, and SEPIC configurations.
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 30V.
- Q: What is the output voltage range?
- A: The output is adjustable from 1.245V up to 35V (switch voltage limit).
- Q: What is the maximum switch current?
- A: The internal switch can handle up to 1.5A.
- Q: What is the switching frequency?
- A: It operates at a fixed 250kHz.
- Q: What package is available?
- A: It comes in an 8-pin SOIC package.
