Overview
The LTC3630EMSE#TRPBF is a high-efficiency step-down DC/DC converter produced by Analog Devices Inc. This device is designed with internal high side and synchronous power switches, ensuring high efficiency and low power consumption. It operates over a wide input voltage range of 4V to 65V and can deliver an output current of up to 500mA. The LTC3630 is available in a compact, thermally-enhanced 16-lead MSOP package, making it suitable for a variety of applications where space and efficiency are critical.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 4V to 65V |
| Output Current | Up to 500mA |
| Output Voltage Range | Adjustable, with an internal 800mV reference |
| Package Type | 16-Lead Plastic MSOP |
| Operating Temperature Range | –40°C to 125°C (for the 'I' grade) |
| Typical DC Supply Current | 12μA |
| Soft-Start Time | Internal 0.8ms, adjustable with external capacitor |
| Dropout Operation | Up to 100% duty cycle |
Key Features
- High efficiency with internal high side and synchronous power switches
- Wide input voltage range of 4V to 65V
- Adjustable output voltage with an internal 800mV reference
- Low profile and thermally-enhanced MSOP package
- Low quiescent current of 12μA typical
- Internal 0.8ms soft-start function, adjustable with external capacitor
- Feedback comparator output pin (FBO) for combining output currents of multiple LTC3630s
- Dropout operation up to 100% duty cycle
Applications
- Industrial control supplies
- Medical devices
- Distributed power systems
- Portable instruments
- Battery-operated devices
- Automotive systems
- Avionics
Q & A
- What is the input voltage range of the LTC3630?
The input voltage range of the LTC3630 is 4V to 65V.
- What is the maximum output current of the LTC3630?
The maximum output current of the LTC3630 is up to 500mA.
- What is the typical DC supply current of the LTC3630?
The typical DC supply current of the LTC3630 is 12μA.
- What is the operating temperature range of the LTC3630?
The operating temperature range of the LTC3630 is –40°C to 125°C for the 'I' grade.
- Can the output voltage of the LTC3630 be adjusted?
Yes, the output voltage of the LTC3630 is adjustable with an internal 800mV reference.
- What is the purpose of the FBO pin on the LTC3630?
The FBO pin allows for combining the output currents of multiple LTC3630s by connecting the FBO pin of a “master” LTC3630 to the VFB pin of one or more “slave” LTC3630s.
- How does the LTC3630 handle dropout operation?
The LTC3630 can operate up to 100% duty cycle during dropout operation, allowing the P-channel MOSFET to stay on continuously.
- What is the soft-start time of the LTC3630?
The internal soft-start time of the LTC3630 is 0.8ms, and it can be adjusted with an external capacitor.
- In what package is the LTC3630 available?
The LTC3630 is available in a 16-lead plastic MSOP package.
- What are some common applications of the LTC3630?
The LTC3630 is commonly used in industrial control supplies, medical devices, distributed power systems, portable instruments, battery-operated devices, automotive systems, and avionics.
