NCP433FCT2G

NCP433FCT2G is a fixed-threshold voltage supervisor (reset IC) from ON Semiconductor in the NCP433 family. It monitors Vcc and asserts its reset output when the supply falls below the internal fixed threshold; once Vcc recovers and after a short delay, the reset is released. This provides brown-out protection and a clean, reliable power-on reset for microcontrollers and digital ICs.
Key points:
- Fixed-threshold voltage detector with a defined reset polarity (typically active reset output).
- Very low quiescent current and compact RoHS package (FCT2G variant).
- Fast response to supply changes with a programmable or fixed reset delay depending on variant (check datasheet for exact values).
Applications: MCU/SoC reset, battery-powered devices, safe power-up sequencing.
Note: For exact threshold values, delay, current, and pinout, refer to the NCP433FCT2G datasheet and the specific variant documentation.

NCP433FCT2G is a reset/voltage‑supervisor IC. Equivalent parts from other vendors (same function, similar thresholds) include:
- TI: TPS3808, TPS383x (3.0–3.3 V variants)
- Microchip: MCP1316 / MCP1317
- Maxim: MAX809 / MAX810
- ST: TS3001 / TS3004
- On Semiconductor: NCP301 / NCP431 (alternate families)
Note: choose exact part by matching supply threshold, reset delay, polarity, and package.

NCP433FCT2G is a microcontroller reset/supervisor IC. Key features:
- Ultra-low-power voltage detector for MCU supervision
- Wide supply range: 1.65 V to 5.5 V
- Fixed-threshold reset options (factory-programmed values; check datasheet for exact VDET for this variant)
- Power-on reset: guarantees reset until Vcc stabilizes above threshold
- Reset output: active-low (RESET#) with a push-pull drive
- Manual reset input to force a reset (debounced/filtering)
- Input/output glitch filtering and brown-out protection
- Very low operating current in normal operation (microamp-level)
- Fast reset assertion and release on Vcc transitions
- Operating temperature range typically -40°C to +125°C (grading varies)
- Small package options (e.g., SC-70/SOT-23-family) with Tape & Reel
Note: exact VDET values, pinout, and package options vary by version. For precise specifications, refer to the NCP433FCT2G datasheet.

- Pin count: 3 pins (SOT-23-3 package).
- Function: Fixed-threshold voltage supervisor (voltage detector) that monitors Vcc and drives an active-low reset output to a microcontroller when the supply falls below the threshold; ensures proper MCU reset on power-up/power-down.

- Manufacturer: ON Semiconductor (ON Semiconductor Corporation).
- What kind of company: An American multinational semiconductor company that designs, manufactures, and sells energy-efficient integrated circuits—including power management, analog, logic, sensors, and related devices.

NCP433FCT2G is a low‑power voltage detector/reset IC. Common application areas:
- Microcontroller and digital-logic reset supervision (POR/BOR)
- Power-on reset and brown-out protection
- System reset generation/sequencing for MCUs, memories, FPGAs/SoCs
- Battery-powered/portable devices needing reliable reset with low quiescent current
- Embedded systems, IoT sensors, wearables, and consumer electronics
- Fault monitoring and safe startup/shutdown in embedded equipment
Note: thresholds and packaging vary by variant; check the datasheet for exact options.

NCP433FCT2G is offered in a SOT-23-3 (3-pin) package.