LT8390IFE

The LT8390IFE is a high-efficiency, wide-input-range buck‑boost switching regulator controller (from Linear Technology/Analog Devices). It regulates an output voltage over a Vin range that can be both above and below Vout, making it ideal for fluctuating automotive, battery, and portable power systems.
Key features (typical):
- Wide input range and seamless buck/boost operation
- Current-mode control for fast transient response
- Support for continuous and discontinuous conduction modes
- Built‑in protections: current limit, thermal shutdown, undervoltage/overvoltage protection
- Flexible feedback/ compensation network for adjustable output
- Suitable with external components (inductor, MOSFETs/diode, capacitors) in convenient packages
Common applications:
- Automotive power rails and battery-powered devices
- Voltage regulation from fluctuating sources (USB, alternators, or chemistries)
- Systems requiring a single regulator to handle both stepping up and down
Note: Check the specific datasheet for exact Vin/Vout ranges, package, and pinout for LT8390IFE variants.

LT8390IFE features (highlights):
- Wide input voltage range suitable for automotive and industrial use
- Buck, boost, and buck-boost topology operation with current‑mode control
- Interleaved 2‑phase operation for high load capability and efficiency
- Programmable switching frequency with light‑load PWM/PFM modes
- Gate drive for external MOSFETs with robust high/low‑side drive
- Soft‑start and programmable output ramp for controlled startup
- Feedback options with remote sensing and accurate regulation
- Protection: cycle‑by‑cycle overcurrent, UVLO/OVLO, thermal shutdown, and hiccup/auto‑retry on fault
- Enable/disable control and fault reporting options
- Suitable for high efficiency synchronous rectification and power‑path applications
Note: For exact electrical specs, timing, and package details, refer to the LT8390IFE datasheet.

LT8390IFE is provided in a 16‑lead TSSOP package.

- Pin count: 16 pins (MSOP/TSSOP-16 package variant with suffix IFE).
- Function: A high-efficiency wide-input buck-boost DC-DC controller that can operate in buck, boost, or buck-boost mode to regulate an output voltage (current‑mode control, suitable for non-isolated power supplies).

- Manufacturer: Analog Devices, Inc. (ADI) — formerly Linear Technology Corporation.
- What kind of company: A U.S.-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits.

Applications include:
- Automotive: 12–24V to 5V/3.3V rails
- Industrial: 9–60V wide-input to regulated outputs
- Battery-powered equipment needing buck–boost regulation
- Solar/battery charging and energy harvesting
- Telecom/network auxiliary rails
- Off-grid and standby power management
Note: LT8390IFE is a wide-input buck/boost converter suitable for these power architectures.