Analog Devices Inc. LTC1265CS-5#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $23.45 | $23.45 |
| 15+ | $5.39 | $80.85 |
| 25+ | $5.27 | $131.75 |
| 50+ | $4.98 | $249.00 |
| 100+ | $4.40 | $440.00 |
| N+ | $0.88 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Buck, Buck-Boost, SEPIC |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 13V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Current - Output | 1.2A (Switch) |
| Frequency - Switching | Up to 700kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 14-SO |
| ROHS |
The LTC1265CS-5 from Analog Devices is a versatile DC-DC converter that can be configured as a buck, buck-boost, or SEPIC regulator. It operates from a 4V to 13V input and provides a fixed 5V output with up to 1.2A of switch current. The switching frequency is up to 700kHz, allowing for compact external components. Its flexibility makes it suitable for battery-powered instruments, automotive accessories, and industrial control systems where a stable 5V rail is required.
- Multiple Topologies (Buck, Buck-Boost, SEPIC): Provides design flexibility for various input/output voltage relationships.
- Fixed 5V Output: Simplifies design for standard logic and peripheral power rails.
- High Switching Frequency (up to 700kHz): Enables small inductors and capacitors, reducing PCB footprint.
- Low Quiescent Current: Extends battery life in portable and standby applications.
5V Logic and Peripheral Power
The LTC1265CS-5 provides a regulated 5V rail from a 4V to 13V input, making it ideal for powering logic circuits, microcontrollers, and peripheral devices in embedded systems. Its high efficiency reduces power dissipation.
Battery-Powered Instruments
For portable instruments powered by 4-8 NiMH or Li-ion cells, this converter maintains a stable 5V output as the battery voltage declines. The low quiescent current extends battery life in standby mode.
Automotive Accessory Power
In automotive environments, the 4V to 13V input range covers the typical battery voltage variations. The LTC1265 can power sensors, displays, and control modules from the vehicle's electrical system.
Industrial Control Systems
For industrial controllers operating from a 12V rail, the LTC1265 steps down to a clean 5V supply for analog and digital circuitry. Its robust design handles transients common in industrial settings.
Networking Equipment
In routers and switches, this converter can generate a 5V rail from a 12V backplane. The high switching frequency allows for small external components, saving board space in dense designs.
SEPIC Configuration for Wide Input Range
When configured as a SEPIC, the LTC1265 can regulate 5V even when the input voltage is above or below 5V, providing a flexible solution for applications with varying input sources.
- Q: What type of converter is the LTC1265CS-5?
- A: It is a versatile DC-DC converter that can be configured as Buck, Buck-Boost, or SEPIC.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 13V.
- Q: What is the output voltage?
- A: This version has a fixed 5V output.
- Q: What is the maximum switch current?
- A: The internal switch is rated for a maximum of 1.2A.
- Q: What is the switching frequency?
- A: The switching frequency is up to 700kHz.
- Q: What package is available?
- A: It is available in a 14-SOIC package.
- Q: What type of converter is the LTC1265CS-5?
- A: It is a versatile DC-DC converter that can be configured as Buck, Buck-Boost, or SEPIC.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 13V.
- Q: What is the output voltage?
- A: This version has a fixed 5V output.
- Q: What is the maximum switch current?
- A: The internal switch is rated for a maximum of 1.2A.
- Q: What is the switching frequency?
- A: The switching frequency is up to 700kHz.
- Q: What package is available?
- A: It is available in a 14-SOIC package.

LTC1265CS-5#TRPBF.pdf