Linear Technology LTC1265IS#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.30 | $7.30 |
| 15+ | $7.07 | $106.05 |
| 25+ | $6.91 | $172.75 |
| 50+ | $6.53 | $326.50 |
| 100+ | $5.76 | $576.00 |
| N+ | $1.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| Function | Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Buck, Buck-Boost, SEPIC |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 13V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 13V |
| Current - Output | 1.2A (Switch) |
| Frequency - Switching | Up to 700kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 14-SO |
| ROHS |  |
The LTC1265IS#PBF is a current-mode DC-DC converter from Analog Devices, supporting Buck, Buck-Boost, and SEPIC topologies. It operates from a 4V to 13V input and provides up to 1.2A switch current, with output voltages adjustable from 1.25V to 13V. The switching frequency is programmable up to 700kHz, enabling compact inductor selection. Housed in a 14-pin SOIC package, it is well-suited for portable, automotive, and industrial power applications.
- Multi-Topology Flexibility: Buck, Buck-Boost, and SEPIC support diverse power architectures with a single IC.
- High-Frequency Operation (700kHz): Reduces external component size, saving PCB area in compact designs.
- Wide Output Range (1.25V-13V): Accommodates various logic and analog supply requirements.
- Current-Mode Control: Provides excellent line and load transient response for stable operation.
Portable Battery Devices
With a 4V to 13V input range and up to 700kHz switching, the LTC1265IS#PBF efficiently regulates Li-ion or multi-cell alkaline batteries in handheld instruments, extending battery life through high-frequency operation that allows small inductors.
SEPIC Power for Automotive Sensors
In automotive systems where input voltage can dip below the output, the SEPIC topology provides a non-inverting output without a transformer, ideal for powering sensors from a 12V bus with transient dips.
5V Logic from 3.3V or 12V Rails
As a buck-boost converter, it can generate a stable 5V rail from inputs above or below 5V, simplifying power distribution in mixed-voltage digital systems.
Industrial Control Boards
The 1.2A switch current is sufficient for op-amps, ADCs, and microcontrollers in industrial control panels, while the SOIC package fits space-constrained PCBs.
Networking Peripherals
For routers and switches with 12V internal rails, the LTC1265 provides clean, regulated low-voltage supplies for PHY chips and FPGAs, reducing noise interference.
Battery Charging Circuits
The buck configuration can be used to charge batteries from a 12V adapter, with the programmable frequency allowing optimization for efficiency or size.
- Q: What topologies does the LTC1265IS#PBF support?
- A: It supports Buck, Buck-Boost, and SEPIC configurations.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 13V.
- Q: What is the maximum switch current?
- A: The maximum switch current is 1.2A.
- Q: What is the switching frequency?
- A: The switching frequency is programmable up to 700kHz.
- Q: What package is used?
- A: It is available in a 14-pin SOIC package (0.154" width).
- Q: What is the output voltage range?
- A: The output voltage can be set from 1.25V to 13V.
LTC1265IS#PBF.pdf
- Q: What topologies does the LTC1265IS#PBF support?
- A: It supports Buck, Buck-Boost, and SEPIC configurations.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 13V.
- Q: What is the maximum switch current?
- A: The maximum switch current is 1.2A.
- Q: What is the switching frequency?
- A: The switching frequency is programmable up to 700kHz.
- Q: What package is used?
- A: It is available in a 14-pin SOIC package (0.154" width).
- Q: What is the output voltage range?
- A: The output voltage can be set from 1.25V to 13V.
