Linear Technology LT3511MPMS#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $61.24 | $61.24 |
| 15+ | $14.09 | $211.35 |
| 25+ | $13.78 | $344.50 |
| 50+ | $13.01 | $650.50 |
| 100+ | $11.48 | $1,148.00 |
| N+ | $2.30 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive or Negative, Isolation Capable |
| Topology | Flyback |
| Output Type | - |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 100V |
| Voltage - Output (Min/Fixed) | - |
| Voltage - Output (Max) | - |
| Current - Output | 240mA |
| Frequency - Switching | 40kHz ~ 650kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-TFSOP (0.118", 3.00mm Width), 12 Leads |
| Supplier Device Package | 16-MSOP |
| ROHS |  |
The LT3511MPMS#PBF from Linear Technology is a flyback DC-DC converter designed for isolated power supplies. It accepts a wide input voltage from 4.5V to 100V and delivers up to 240mA of switch current. The switching frequency is programmable from 40kHz to 650kHz, allowing designers to balance efficiency and component size. Housed in a compact 16-TFSOP package (12 leads), it features primary-side sensing, eliminating the need for an optocoupler. This makes it ideal for industrial, automotive, and medical applications requiring reliable isolation.
- No Optocoupler Needed: Primary-side sensing simplifies design, improves transient response, and enhances long-term reliability.
- 100V Input Rating: Directly interfaces with high-voltage industrial and automotive buses without external level shifting.
- Programmable Frequency (40-650kHz): Optimize for efficiency (low frequency) or small size (high frequency) as needed.
- Compact 16-TFSOP Package: Saves PCB space in space-constrained isolated power modules.
- 240mA Switch Current: Sufficient for low-power isolated rails (up to ~2W) for transceivers, sensors, and gate drivers.
Isolated RS-485 Transceivers
Provide a 5V isolated rail for RS-485 communication in industrial networks. The flyback topology with primary-side sensing eliminates the optocoupler, simplifying the design and improving reliability.
Gate Drive Power Supplies
Generate isolated 12V/15V rails for IGBT or SiC MOSFET gate drivers in motor drives. The 100V input rating handles the high-voltage DC bus, and the 240mA output is sufficient for gate charge requirements.
Automotive Battery Monitoring
Power isolated sensors in a 48V mild-hybrid system. The 4.5V to 100V input range covers the full battery voltage swing, and the small TFSOP package fits into compact battery management units.
Industrial Fieldbus Isolators
Create isolated power for PROFIBUS or CAN transceivers. The programmable frequency (40-650kHz) allows the designer to avoid sensitive frequency bands and minimize EMI in noisy industrial environments.
Medical Sensor Isolation
Provide reinforced isolation for patient monitoring sensors. The flyback topology with a coupled inductor provides the required isolation, and the primary-side regulation reduces component count for higher reliability.
Solar Inverter Auxiliary Supply
Power the control electronics in a solar inverter from the high-voltage DC bus (up to 100V). The LT3511MPMS provides a stable low-voltage rail without a separate auxiliary transformer.
- Q: What type of converter is the LT3511MPMS?
- A: It is a flyback DC-DC converter, ideal for isolated power supply applications.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 100V, making it suitable for high-voltage industrial and automotive systems.
- Q: What is the maximum output current?
- A: The maximum switch current is 240mA, suitable for low-power isolated rails.
- Q: What is the switching frequency?
- A: The frequency is programmable from 40kHz to 650kHz, allowing optimization for efficiency or size.
- Q: What package is available?
- A: It comes in a 16-TFSOP package (3mm width) with 12 leads, ideal for space-constrained designs.
- Q: Does it require an optocoupler?
- A: No, the LT3511MPMS uses primary-side sensing, eliminating the need for an optocoupler for regulation.
LT3511MPMS#PBF.pdf
- Q: What type of converter is the LT3511MPMS?
- A: It is a flyback DC-DC converter, ideal for isolated power supply applications.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 100V, making it suitable for high-voltage industrial and automotive systems.
- Q: What is the maximum output current?
- A: The maximum switch current is 240mA, suitable for low-power isolated rails.
- Q: What is the switching frequency?
- A: The frequency is programmable from 40kHz to 650kHz, allowing optimization for efficiency or size.
- Q: What package is available?
- A: It comes in a 16-TFSOP package (3mm width) with 12 leads, ideal for space-constrained designs.
- Q: Does it require an optocoupler?
- A: No, the LT3511MPMS uses primary-side sensing, eliminating the need for an optocoupler for regulation.
