LTC3115IFE-1#PBF

LTC3115IFE-1#PBF is a Linear Technology (now Analog Devices) wide-input buck-boost regulator with integrated switches. It can regulate an output voltage whether the input is above or below that output, making it ideal for battery-powered and automotive-like sources where Vin can fluctuate.
Key points:
- Architecture: synchronous buck-boost regulator with internal MOSFETs and fixed-frequency, current‑mode control.
- Input/output: supports a wide input range and an adjustable output via external resistors.
- Control and protection: soft-start, enable/shutdown pin, under/over-voltage protection, overcurrent protection, and thermal shutdown.
- Package/variant: “IFE-1” denotes a particular device/package variant; “PBF” indicates Pb-free (lead-free) packaging.
- Applications: battery-powered and automotive systems, portable devices, energy harvesting, and backup power.
- Resources: consult the LTC3115 datasheet and evaluation board for pinout, typical circuits, and design guidance.
If you need exact electrical specs (Vin range, output accuracy, load capability) or pinout, check the latest LTC3115IFE-1#PBF datasheet.

LTC3115IFE-1#PBF features (summary)
- Buck-boost DC/DC regulator with integrated high-side and low-side MOSFETs (synchronous)
- Wide input range suitable for battery and adapter sources; supports step-up and step-down regulation
- Adjustable output via external feedback (also available in fixed-output variants)
- High efficiency with light-load operation (Burst/PWM modes) for minimal quiescent current
- Programmable switching frequency; clock synchronization option for EMI control
- Fast transient response with current-mode control
- Protection: overcurrent/short-circuit, overvoltage, thermal shutdown, input undervoltage lockout
- Enable/shutdown input and soft-start to control inrush; output discharge when disabled
- Suitable for compact, low-profile designs; available in lead-free (PBF) packaging
Note: Exact voltage ranges, currents, and timing values are specified in the datasheet.

20‑lead TSSOP (Thin Shrink Small Outline Package), Pb‑free (RoHS).

- Pin count: 28 pins (28-pin package)
- Function: High-efficiency buck-boost DC-DC regulator/controller. It drives external switching MOSFETs to regulate an output over a wide input range, supporting buck and boost operation with features such as current‑mode control, soft-start, UVLO/OVP, and current limiting.

- Manufacturer: Linear Technology Corporation (LTC), now part of Analog Devices, Inc.
- What kind of company: A global semiconductor company that designs and manufactures analog integrated circuits, especially power management and precision analog devices.

Applications: wide-input, high-efficiency buck-boost regulator for automotive and industrial power systems; battery-powered devices needing buck/boost operation; point-of-load regulators in distributed power architectures; pre-regulation for solar/renewable systems and telecom equipment.