NCP186AMN080TBG

NCP186AMN080TBG is ON Semiconductor’s NCP186 family off-line switch-mode power-supply controller in an 8-pin package. It targets isolated flyback converters in AC-DC supplies such as wall adapters, USB chargers, and LED drivers. The device combines a high-voltage startup element with a current-mode PWM controller, enabling compact, low-cost SMPS designs with regulated outputs and essential protections.
Key features (typical): high-voltage startup interface, current‑mode control, overcurrent/short‑circuit protection, undervoltage lockout, soft-start, and an enable/shutdown input. It supports fixed-frequency operation and is suitable for simple, energy-efficient offline power supplies.
Package: 8-pin small-outline package, Tape & Reel (TBG) variant.
Applications: AC-DC adapters, USB chargers, LED lighting drivers, and compact power supplies.
Note: Refer to the latest datasheet for exact electrical specs (input range, startup current, switching frequency, protection thresholds, pinout) and recommended operating conditions for this revision.

There is no published exact cross-reference for NCP186AMN080TBG. To substitute, match the function (offline flyback controller with high-voltage startup, same package and ratings). Similar parts from other vendors include TI UCC28C40/UCC28C42 and Richtek RT8250/RT8257; ST L5974/L5975 and Power Integrations LNK304/LNK364. For a guaranteed drop-in, request an official cross-reference from ON Semiconductor or via a distributor cross-reference tool.

- Pin count: 8 pins (8-pin package)
- Function: Off-line switch-mode power-supply controller with an integrated high-voltage MOSFET, used for flyback converters. Provides fixed-frequency, current-mode PWM control with startup, UVLO, and feedback-regulated regulation.

- Manufacturer: ON Semiconductor (ON Semiconductor Corporation).
- What kind of company: An American multinational semiconductor manufacturer that designs and produces energy-efficient analog, power, logic, and mixed-signal ICs for automotive, industrial, communications, and consumer electronics. Headquartered in Phoenix, Arizona.

NCP186AMN080TBG is a high-voltage, integrated-MOSFET offline switcher for isolated flyback power supplies. It is used in low- to medium-power off-line converters with minimal external parts. Typical application areas:
- Wall‑wart AC‑DC adapters
- USB/phone/tablet chargers
- LED driver power supplies
- Battery chargers
- Small consumer electronics PSUs (set-top boxes, media players)
- Standby/auxiliary power supplies for appliances and peripherals
It enables compact, cost-effective single‑stage flyback designs for powers from a few watts up to tens of watts, with good efficiency for consumer applications.

8-pin SOIC (SOIC-8) package; RoHS-compliant lead-free.